/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:03:22,805 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:03:22,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:03:22,838 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:03:22,839 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:03:22,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:03:22,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:03:22,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:03:22,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:03:22,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:03:22,848 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:03:22,849 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:03:22,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:03:22,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:03:22,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:03:22,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:03:22,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:03:22,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:03:22,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:03:22,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:03:22,861 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:03:22,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:03:22,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:03:22,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:03:22,868 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:03:22,868 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:03:22,868 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:03:22,869 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:03:22,870 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:03:22,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:03:22,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:03:22,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:03:22,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:03:22,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:03:22,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:03:22,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:03:22,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:03:22,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:03:22,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:03:22,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:03:22,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:03:22,879 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 10:03:22,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:03:22,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:03:22,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:03:22,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:03:22,909 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:03:22,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:03:22,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:03:22,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:03:22,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:03:22,910 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:03:22,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:03:22,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:03:22,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:03:22,911 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:03:22,911 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:03:22,911 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:03:22,911 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:03:22,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:03:22,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:03:22,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:03:22,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:03:22,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:03:22,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:03:22,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:03:22,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:03:22,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:03:22,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:03:22,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:03:22,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:03:22,914 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 10:03:23,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:03:23,438 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:03:23,443 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:03:23,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:03:23,445 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:03:23,446 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 10:03:23,541 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30d54f783/41aab7dd1e8b4ad69744372413a9efa5/FLAGf05666e02 [2020-09-25 10:03:24,144 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:03:24,145 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ssh-simplified/s3_srvr_14.cil.c [2020-09-25 10:03:24,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30d54f783/41aab7dd1e8b4ad69744372413a9efa5/FLAGf05666e02 [2020-09-25 10:03:24,434 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/30d54f783/41aab7dd1e8b4ad69744372413a9efa5 [2020-09-25 10:03:24,449 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:03:24,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:03:24,457 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:03:24,457 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:03:24,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:03:24,465 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:03:24" (1/1) ... [2020-09-25 10:03:24,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693e2903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:24, skipping insertion in model container [2020-09-25 10:03:24,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:03:24" (1/1) ... [2020-09-25 10:03:24,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:03:24,535 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:03:24,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:03:24,914 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:03:25,096 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:03:25,120 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:03:25,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25 WrapperNode [2020-09-25 10:03:25,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:03:25,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:03:25,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:03:25,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:03:25,136 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... [2020-09-25 10:03:25,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... [2020-09-25 10:03:25,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... [2020-09-25 10:03:25,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... [2020-09-25 10:03:25,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... [2020-09-25 10:03:25,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... [2020-09-25 10:03:25,183 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... [2020-09-25 10:03:25,189 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:03:25,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:03:25,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:03:25,190 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:03:25,191 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:03:25,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:03:25,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:03:25,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_accept [2020-09-25 10:03:25,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:03:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:03:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-09-25 10:03:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:03:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-09-25 10:03:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_accept [2020-09-25 10:03:25,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:03:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:03:25,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:03:25,511 WARN L779 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-09-25 10:03:26,400 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2020-09-25 10:03:26,401 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2020-09-25 10:03:26,418 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:03:26,419 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-25 10:03:26,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:03:26 BoogieIcfgContainer [2020-09-25 10:03:26,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:03:26,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:03:26,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:03:26,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:03:26,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:03:24" (1/3) ... [2020-09-25 10:03:26,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137a5b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:03:26, skipping insertion in model container [2020-09-25 10:03:26,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:03:25" (2/3) ... [2020-09-25 10:03:26,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@137a5b7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:03:26, skipping insertion in model container [2020-09-25 10:03:26,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:03:26" (3/3) ... [2020-09-25 10:03:26,439 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_14.cil.c [2020-09-25 10:03:26,451 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:03:26,463 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:03:26,486 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:03:26,523 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:03:26,523 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:03:26,523 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:03:26,524 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:03:26,524 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:03:26,524 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:03:26,524 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:03:26,524 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:03:26,556 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states. [2020-09-25 10:03:26,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-09-25 10:03:26,573 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:26,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:26,575 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:26,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:26,582 INFO L82 PathProgramCache]: Analyzing trace with hash 1268045474, now seen corresponding path program 1 times [2020-09-25 10:03:26,591 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:26,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1432459164] [2020-09-25 10:03:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:26,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:27,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:27,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:28,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:28,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:28,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 167 [2020-09-25 10:03:28,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:28,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1504 [2020-09-25 10:03:28,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:28,323 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:03:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:03:28,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 10:03:28,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:03:28,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:28,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:28,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:28,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:28,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:28,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:28,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:28,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:28,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:28,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:28,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:28,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1432459164] [2020-09-25 10:03:28,596 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:28,596 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 10:03:28,597 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767101083] [2020-09-25 10:03:28,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 10:03:28,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:28,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 10:03:28,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-25 10:03:28,629 INFO L87 Difference]: Start difference. First operand 426 states. Second operand 6 states. [2020-09-25 10:03:29,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:29,099 INFO L93 Difference]: Finished difference Result 802 states and 1073 transitions. [2020-09-25 10:03:29,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 10:03:29,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2020-09-25 10:03:29,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:29,123 INFO L225 Difference]: With dead ends: 802 [2020-09-25 10:03:29,124 INFO L226 Difference]: Without dead ends: 459 [2020-09-25 10:03:29,130 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:03:29,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 459 states. [2020-09-25 10:03:29,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 459 to 444. [2020-09-25 10:03:29,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-09-25 10:03:29,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 535 transitions. [2020-09-25 10:03:29,214 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 535 transitions. Word has length 158 [2020-09-25 10:03:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:29,215 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 535 transitions. [2020-09-25 10:03:29,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 10:03:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 535 transitions. [2020-09-25 10:03:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 10:03:29,219 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:29,219 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] [2020-09-25 10:03:29,219 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:03:29,220 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:29,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:29,220 INFO L82 PathProgramCache]: Analyzing trace with hash 796395907, now seen corresponding path program 1 times [2020-09-25 10:03:29,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:29,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1428486270] [2020-09-25 10:03:29,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:29,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:29,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:30,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:30,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 10:03:30,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:30,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1738 [2020-09-25 10:03:30,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:30,987 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:03:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:03:30,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 161 [2020-09-25 10:03:30,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:31,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:31,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:31,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:31,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:31,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:31,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:03:31,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:31,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:31,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:31,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:31,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:31,152 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1428486270] [2020-09-25 10:03:31,153 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:31,153 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:03:31,154 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185770660] [2020-09-25 10:03:31,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:03:31,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:31,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:03:31,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:03:31,159 INFO L87 Difference]: Start difference. First operand 444 states and 535 transitions. Second operand 7 states. [2020-09-25 10:03:31,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:31,634 INFO L93 Difference]: Finished difference Result 1071 states and 1352 transitions. [2020-09-25 10:03:31,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:03:31,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-09-25 10:03:31,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:31,641 INFO L225 Difference]: With dead ends: 1071 [2020-09-25 10:03:31,641 INFO L226 Difference]: Without dead ends: 770 [2020-09-25 10:03:31,644 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:03:31,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2020-09-25 10:03:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 726. [2020-09-25 10:03:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-09-25 10:03:31,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 909 transitions. [2020-09-25 10:03:31,687 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 909 transitions. Word has length 166 [2020-09-25 10:03:31,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:31,688 INFO L479 AbstractCegarLoop]: Abstraction has 726 states and 909 transitions. [2020-09-25 10:03:31,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:03:31,688 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 909 transitions. [2020-09-25 10:03:31,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-09-25 10:03:31,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:31,693 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:31,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:03:31,694 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:31,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:31,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1852412155, now seen corresponding path program 1 times [2020-09-25 10:03:31,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:31,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [433342132] [2020-09-25 10:03:31,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:31,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:31,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:31,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:32,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-09-25 10:03:32,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:03:32,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1155 [2020-09-25 10:03:32,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:32,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:32,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:32,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-09-25 10:03:32,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 10:03:32,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:32,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:32,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:32,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:32,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:32,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:32,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:32,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:32,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:32,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:03:32,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [433342132] [2020-09-25 10:03:32,999 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:32,999 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:32,999 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8151752] [2020-09-25 10:03:33,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:33,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:33,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:33,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:33,002 INFO L87 Difference]: Start difference. First operand 726 states and 909 transitions. Second operand 3 states. [2020-09-25 10:03:33,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:33,056 INFO L93 Difference]: Finished difference Result 1875 states and 2403 transitions. [2020-09-25 10:03:33,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:33,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-09-25 10:03:33,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:33,066 INFO L225 Difference]: With dead ends: 1875 [2020-09-25 10:03:33,066 INFO L226 Difference]: Without dead ends: 1292 [2020-09-25 10:03:33,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:33,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1292 states. [2020-09-25 10:03:33,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1292 to 1080. [2020-09-25 10:03:33,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1080 states. [2020-09-25 10:03:33,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1376 transitions. [2020-09-25 10:03:33,107 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1376 transitions. Word has length 180 [2020-09-25 10:03:33,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:33,108 INFO L479 AbstractCegarLoop]: Abstraction has 1080 states and 1376 transitions. [2020-09-25 10:03:33,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1376 transitions. [2020-09-25 10:03:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 10:03:33,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:33,113 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:33,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:03:33,113 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:33,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:33,114 INFO L82 PathProgramCache]: Analyzing trace with hash -219579904, now seen corresponding path program 1 times [2020-09-25 10:03:33,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:33,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1480305613] [2020-09-25 10:03:33,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:33,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:33,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:33,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:33,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:33,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:33,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:34,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:34,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 10:03:34,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:03:34,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1443 [2020-09-25 10:03:34,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:34,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:34,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:34,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 148 [2020-09-25 10:03:34,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 10:03:34,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:34,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:34,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:34,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:34,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:34,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:34,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:34,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:34,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:34,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:34,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:34,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:34,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:03:34,671 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 10:03:34,672 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1480305613] [2020-09-25 10:03:34,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:34,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:34,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12403696] [2020-09-25 10:03:34,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:34,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:34,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:34,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:34,676 INFO L87 Difference]: Start difference. First operand 1080 states and 1376 transitions. Second operand 3 states. [2020-09-25 10:03:34,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:34,731 INFO L93 Difference]: Finished difference Result 2940 states and 3814 transitions. [2020-09-25 10:03:34,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:34,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 10:03:34,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:34,744 INFO L225 Difference]: With dead ends: 2940 [2020-09-25 10:03:34,744 INFO L226 Difference]: Without dead ends: 2004 [2020-09-25 10:03:34,746 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:34,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2020-09-25 10:03:34,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1435. [2020-09-25 10:03:34,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2020-09-25 10:03:34,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1848 transitions. [2020-09-25 10:03:34,804 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1848 transitions. Word has length 181 [2020-09-25 10:03:34,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:34,805 INFO L479 AbstractCegarLoop]: Abstraction has 1435 states and 1848 transitions. [2020-09-25 10:03:34,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:34,805 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1848 transitions. [2020-09-25 10:03:34,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-09-25 10:03:34,808 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:34,808 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:34,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:03:34,809 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:34,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:34,809 INFO L82 PathProgramCache]: Analyzing trace with hash -467726398, now seen corresponding path program 1 times [2020-09-25 10:03:34,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:34,810 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350359612] [2020-09-25 10:03:34,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:34,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:34,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,818 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:35,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 190 [2020-09-25 10:03:35,819 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:35,819 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 981 [2020-09-25 10:03:35,819 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:35,819 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 131 [2020-09-25 10:03:35,820 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-09-25 10:03:35,820 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:35,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:35,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:35,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:35,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:35,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:35,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:35,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:03:35,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:35,886 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:35,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:35,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:35,909 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:35,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350359612] [2020-09-25 10:03:35,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:35,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:35,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727271975] [2020-09-25 10:03:35,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:35,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:35,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:35,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:35,911 INFO L87 Difference]: Start difference. First operand 1435 states and 1848 transitions. Second operand 3 states. [2020-09-25 10:03:35,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:35,951 INFO L93 Difference]: Finished difference Result 2725 states and 3547 transitions. [2020-09-25 10:03:35,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:35,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 181 [2020-09-25 10:03:35,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:35,959 INFO L225 Difference]: With dead ends: 2725 [2020-09-25 10:03:35,960 INFO L226 Difference]: Without dead ends: 1435 [2020-09-25 10:03:35,962 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:35,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2020-09-25 10:03:36,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1435. [2020-09-25 10:03:36,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2020-09-25 10:03:36,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1834 transitions. [2020-09-25 10:03:36,009 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1834 transitions. Word has length 181 [2020-09-25 10:03:36,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:36,010 INFO L479 AbstractCegarLoop]: Abstraction has 1435 states and 1834 transitions. [2020-09-25 10:03:36,010 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:36,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1834 transitions. [2020-09-25 10:03:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-09-25 10:03:36,014 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:36,014 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:36,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:03:36,015 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:36,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:36,015 INFO L82 PathProgramCache]: Analyzing trace with hash -2092857871, now seen corresponding path program 1 times [2020-09-25 10:03:36,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:36,016 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902531614] [2020-09-25 10:03:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:36,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 191 [2020-09-25 10:03:36,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:03:36,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-09-25 10:03:36,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-09-25 10:03:36,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 10:03:36,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:36,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:36,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:36,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:36,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:36,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:36,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:36,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:36,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:36,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:36,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 10:03:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 10:03:36,840 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902531614] [2020-09-25 10:03:36,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:36,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:36,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796458074] [2020-09-25 10:03:36,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:36,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:36,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:36,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:36,843 INFO L87 Difference]: Start difference. First operand 1435 states and 1834 transitions. Second operand 3 states. [2020-09-25 10:03:37,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:37,038 INFO L93 Difference]: Finished difference Result 3949 states and 5138 transitions. [2020-09-25 10:03:37,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:37,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-09-25 10:03:37,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:37,053 INFO L225 Difference]: With dead ends: 3949 [2020-09-25 10:03:37,054 INFO L226 Difference]: Without dead ends: 2659 [2020-09-25 10:03:37,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:37,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2020-09-25 10:03:37,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2657. [2020-09-25 10:03:37,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2657 states. [2020-09-25 10:03:37,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2657 states to 2657 states and 3406 transitions. [2020-09-25 10:03:37,173 INFO L78 Accepts]: Start accepts. Automaton has 2657 states and 3406 transitions. Word has length 182 [2020-09-25 10:03:37,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:37,174 INFO L479 AbstractCegarLoop]: Abstraction has 2657 states and 3406 transitions. [2020-09-25 10:03:37,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:37,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2657 states and 3406 transitions. [2020-09-25 10:03:37,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-09-25 10:03:37,178 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:37,178 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:37,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:03:37,179 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:37,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:37,179 INFO L82 PathProgramCache]: Analyzing trace with hash -2039964467, now seen corresponding path program 1 times [2020-09-25 10:03:37,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:37,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [184502325] [2020-09-25 10:03:37,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:37,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:37,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:37,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 10:03:37,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:03:37,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-25 10:03:37,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:37,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:37,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-09-25 10:03:37,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 10:03:37,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:37,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:37,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:37,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:37,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:37,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:37,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:37,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:37,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:37,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:37,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:37,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:37,627 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:03:37,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:37,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [184502325] [2020-09-25 10:03:37,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:37,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:37,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286896440] [2020-09-25 10:03:37,662 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:37,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:37,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:37,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:37,664 INFO L87 Difference]: Start difference. First operand 2657 states and 3406 transitions. Second operand 3 states. [2020-09-25 10:03:37,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:37,797 INFO L93 Difference]: Finished difference Result 5223 states and 6725 transitions. [2020-09-25 10:03:37,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:37,798 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 183 [2020-09-25 10:03:37,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:37,814 INFO L225 Difference]: With dead ends: 5223 [2020-09-25 10:03:37,814 INFO L226 Difference]: Without dead ends: 2711 [2020-09-25 10:03:37,821 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:37,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2020-09-25 10:03:37,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2705. [2020-09-25 10:03:37,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2705 states. [2020-09-25 10:03:37,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2705 states to 2705 states and 3434 transitions. [2020-09-25 10:03:37,925 INFO L78 Accepts]: Start accepts. Automaton has 2705 states and 3434 transitions. Word has length 183 [2020-09-25 10:03:37,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:37,925 INFO L479 AbstractCegarLoop]: Abstraction has 2705 states and 3434 transitions. [2020-09-25 10:03:37,925 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:37,925 INFO L276 IsEmpty]: Start isEmpty. Operand 2705 states and 3434 transitions. [2020-09-25 10:03:37,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 10:03:37,930 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:37,931 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:37,931 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:03:37,931 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:37,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1739161684, now seen corresponding path program 1 times [2020-09-25 10:03:37,932 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:37,932 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [250755808] [2020-09-25 10:03:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:37,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:38,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:38,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:38,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:38,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 10:03:38,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:03:38,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 478 [2020-09-25 10:03:38,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:38,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 10:03:38,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-09-25 10:03:38,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 10:03:38,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:38,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:38,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:38,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:38,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:38,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:38,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:38,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:38,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:38,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:38,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 10:03:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:38,544 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [250755808] [2020-09-25 10:03:38,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:38,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:03:38,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030861018] [2020-09-25 10:03:38,546 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:38,546 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:38,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:38,547 INFO L87 Difference]: Start difference. First operand 2705 states and 3434 transitions. Second operand 4 states. [2020-09-25 10:03:38,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:38,789 INFO L93 Difference]: Finished difference Result 10359 states and 13249 transitions. [2020-09-25 10:03:38,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:38,790 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 189 [2020-09-25 10:03:38,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:38,826 INFO L225 Difference]: With dead ends: 10359 [2020-09-25 10:03:38,826 INFO L226 Difference]: Without dead ends: 7799 [2020-09-25 10:03:38,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:03:38,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7799 states. [2020-09-25 10:03:39,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7799 to 5171. [2020-09-25 10:03:39,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5171 states. [2020-09-25 10:03:39,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5171 states to 5171 states and 6556 transitions. [2020-09-25 10:03:39,059 INFO L78 Accepts]: Start accepts. Automaton has 5171 states and 6556 transitions. Word has length 189 [2020-09-25 10:03:39,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:39,060 INFO L479 AbstractCegarLoop]: Abstraction has 5171 states and 6556 transitions. [2020-09-25 10:03:39,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:39,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5171 states and 6556 transitions. [2020-09-25 10:03:39,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-25 10:03:39,067 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:39,067 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:39,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:03:39,068 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:39,068 INFO L82 PathProgramCache]: Analyzing trace with hash -425975215, now seen corresponding path program 1 times [2020-09-25 10:03:39,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:39,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306817857] [2020-09-25 10:03:39,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 198 [2020-09-25 10:03:39,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:03:39,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 342 [2020-09-25 10:03:39,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 10:03:39,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:03:39,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:39,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:39,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:39,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:39,537 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:39,537 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:39,537 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:39,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:39,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:39,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:39,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:39,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:39,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:39,562 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:39,563 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [306817857] [2020-09-25 10:03:39,563 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:39,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:39,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558699146] [2020-09-25 10:03:39,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:39,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:39,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:39,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:39,565 INFO L87 Difference]: Start difference. First operand 5171 states and 6556 transitions. Second operand 3 states. [2020-09-25 10:03:39,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:39,923 INFO L93 Difference]: Finished difference Result 11059 states and 14417 transitions. [2020-09-25 10:03:39,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:39,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-09-25 10:03:39,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:39,952 INFO L225 Difference]: With dead ends: 11059 [2020-09-25 10:03:39,953 INFO L226 Difference]: Without dead ends: 6041 [2020-09-25 10:03:39,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:39,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6041 states. [2020-09-25 10:03:40,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6041 to 5799. [2020-09-25 10:03:40,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5799 states. [2020-09-25 10:03:40,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5799 states to 5799 states and 7447 transitions. [2020-09-25 10:03:40,172 INFO L78 Accepts]: Start accepts. Automaton has 5799 states and 7447 transitions. Word has length 189 [2020-09-25 10:03:40,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:40,173 INFO L479 AbstractCegarLoop]: Abstraction has 5799 states and 7447 transitions. [2020-09-25 10:03:40,173 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:40,173 INFO L276 IsEmpty]: Start isEmpty. Operand 5799 states and 7447 transitions. [2020-09-25 10:03:40,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 10:03:40,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:40,181 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:40,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 10:03:40,181 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:40,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:40,182 INFO L82 PathProgramCache]: Analyzing trace with hash 2006271171, now seen corresponding path program 1 times [2020-09-25 10:03:40,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:40,182 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987067870] [2020-09-25 10:03:40,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:40,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:40,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:40,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:41,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:42,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:44,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 10:03:44,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 10:03:44,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4577 [2020-09-25 10:03:44,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:44,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:44,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:03:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-09-25 10:03:44,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-09-25 10:03:44,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:44,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:44,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:44,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:44,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:44,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:44,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:44,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:44,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:44,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:44,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:44,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:44,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:44,994 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:44,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987067870] [2020-09-25 10:03:44,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:44,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 10:03:44,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094168021] [2020-09-25 10:03:44,996 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:03:44,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:44,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:03:44,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:03:44,997 INFO L87 Difference]: Start difference. First operand 5799 states and 7447 transitions. Second operand 8 states. [2020-09-25 10:03:45,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:45,651 INFO L93 Difference]: Finished difference Result 9392 states and 12067 transitions. [2020-09-25 10:03:45,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:03:45,652 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 191 [2020-09-25 10:03:45,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:45,705 INFO L225 Difference]: With dead ends: 9392 [2020-09-25 10:03:45,705 INFO L226 Difference]: Without dead ends: 3686 [2020-09-25 10:03:45,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-25 10:03:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3686 states. [2020-09-25 10:03:45,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3686 to 3514. [2020-09-25 10:03:45,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3514 states. [2020-09-25 10:03:45,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3514 states to 3514 states and 4469 transitions. [2020-09-25 10:03:45,915 INFO L78 Accepts]: Start accepts. Automaton has 3514 states and 4469 transitions. Word has length 191 [2020-09-25 10:03:45,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:45,916 INFO L479 AbstractCegarLoop]: Abstraction has 3514 states and 4469 transitions. [2020-09-25 10:03:45,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:03:45,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3514 states and 4469 transitions. [2020-09-25 10:03:45,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-09-25 10:03:45,920 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:45,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:45,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 10:03:45,925 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:45,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:45,926 INFO L82 PathProgramCache]: Analyzing trace with hash 340252365, now seen corresponding path program 1 times [2020-09-25 10:03:45,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:45,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441601354] [2020-09-25 10:03:45,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:46,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:46,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 10:03:46,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 10:03:46,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 957 [2020-09-25 10:03:46,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:46,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:03:46,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 169 [2020-09-25 10:03:46,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 10:03:46,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:46,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:46,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:46,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:46,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:46,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:46,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:46,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:03:46,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:46,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:46,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:46,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:47,009 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:47,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441601354] [2020-09-25 10:03:47,010 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:47,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 10:03:47,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808560944] [2020-09-25 10:03:47,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 10:03:47,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:47,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 10:03:47,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 10:03:47,013 INFO L87 Difference]: Start difference. First operand 3514 states and 4469 transitions. Second operand 4 states. [2020-09-25 10:03:47,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:47,478 INFO L93 Difference]: Finished difference Result 8214 states and 10496 transitions. [2020-09-25 10:03:47,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:03:47,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2020-09-25 10:03:47,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:47,496 INFO L225 Difference]: With dead ends: 8214 [2020-09-25 10:03:47,496 INFO L226 Difference]: Without dead ends: 4859 [2020-09-25 10:03:47,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:03:47,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4859 states. [2020-09-25 10:03:47,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4859 to 3425. [2020-09-25 10:03:47,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3425 states. [2020-09-25 10:03:47,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3425 states to 3425 states and 4323 transitions. [2020-09-25 10:03:47,631 INFO L78 Accepts]: Start accepts. Automaton has 3425 states and 4323 transitions. Word has length 191 [2020-09-25 10:03:47,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:47,632 INFO L479 AbstractCegarLoop]: Abstraction has 3425 states and 4323 transitions. [2020-09-25 10:03:47,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 10:03:47,632 INFO L276 IsEmpty]: Start isEmpty. Operand 3425 states and 4323 transitions. [2020-09-25 10:03:47,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-09-25 10:03:47,637 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:47,637 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:47,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 10:03:47,638 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:47,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:47,638 INFO L82 PathProgramCache]: Analyzing trace with hash -912264382, now seen corresponding path program 1 times [2020-09-25 10:03:47,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:47,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910697637] [2020-09-25 10:03:47,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:47,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:47,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:47,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-09-25 10:03:47,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:47,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 10:03:47,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:47,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:03:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 166 [2020-09-25 10:03:47,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-09-25 10:03:47,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:47,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:03:47,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:03:47,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:03:47,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:03:47,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:03:47,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:03:47,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:03:47,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:03:47,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:03:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:03:47,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:03:47,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:03:47,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:03:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 10:03:47,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910697637] [2020-09-25 10:03:47,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:03:47,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 10:03:47,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1628417372] [2020-09-25 10:03:47,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 10:03:47,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:03:47,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 10:03:47,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:47,870 INFO L87 Difference]: Start difference. First operand 3425 states and 4323 transitions. Second operand 3 states. [2020-09-25 10:03:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:03:47,996 INFO L93 Difference]: Finished difference Result 6895 states and 8721 transitions. [2020-09-25 10:03:47,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 10:03:47,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 200 [2020-09-25 10:03:47,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:03:48,006 INFO L225 Difference]: With dead ends: 6895 [2020-09-25 10:03:48,006 INFO L226 Difference]: Without dead ends: 3719 [2020-09-25 10:03:48,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 10:03:48,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3719 states. [2020-09-25 10:03:48,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3719 to 3717. [2020-09-25 10:03:48,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3717 states. [2020-09-25 10:03:48,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 4646 transitions. [2020-09-25 10:03:48,215 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 4646 transitions. Word has length 200 [2020-09-25 10:03:48,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:03:48,216 INFO L479 AbstractCegarLoop]: Abstraction has 3717 states and 4646 transitions. [2020-09-25 10:03:48,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 10:03:48,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 4646 transitions. [2020-09-25 10:03:48,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-09-25 10:03:48,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:03:48,220 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:03:48,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 10:03:48,221 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ssl3_acceptErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:03:48,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:03:48,221 INFO L82 PathProgramCache]: Analyzing trace with hash -690870181, now seen corresponding path program 1 times [2020-09-25 10:03:48,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:03:48,222 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1648718787] [2020-09-25 10:03:48,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:03:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 10:03:48,245 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 10:03:48,246 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 10:03:48,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 10:03:48,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 10:03:48 BoogieIcfgContainer [2020-09-25 10:03:48,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 10:03:48,308 INFO L168 Benchmark]: Toolchain (without parser) took 23850.37 ms. Allocated memory was 145.8 MB in the beginning and 551.6 MB in the end (delta: 405.8 MB). Free memory was 101.1 MB in the beginning and 467.2 MB in the end (delta: -366.0 MB). Peak memory consumption was 39.8 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:48,308 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 10:03:48,309 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.76 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 176.9 MB in the end (delta: -76.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:48,310 INFO L168 Benchmark]: Boogie Preprocessor took 67.51 ms. Allocated memory is still 202.4 MB. Free memory was 176.9 MB in the beginning and 174.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:48,311 INFO L168 Benchmark]: RCFGBuilder took 1239.87 ms. Allocated memory is still 202.4 MB. Free memory was 174.1 MB in the beginning and 103.3 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. [2020-09-25 10:03:48,320 INFO L168 Benchmark]: TraceAbstraction took 21869.02 ms. Allocated memory was 202.4 MB in the beginning and 551.6 MB in the end (delta: 349.2 MB). Free memory was 102.6 MB in the beginning and 467.2 MB in the end (delta: -364.5 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 10:03:48,326 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.76 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.5 MB in the beginning and 176.9 MB in the end (delta: -76.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 67.51 ms. Allocated memory is still 202.4 MB. Free memory was 176.9 MB in the beginning and 174.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1239.87 ms. Allocated memory is still 202.4 MB. Free memory was 174.1 MB in the beginning and 103.3 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21869.02 ms. Allocated memory was 202.4 MB in the beginning and 551.6 MB in the end (delta: 349.2 MB). Free memory was 102.6 MB in the beginning and 467.2 MB in the end (delta: -364.5 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 640]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L645] int s ; [L646] int tmp ; [L650] s = 8464 [L651] CALL ssl3_accept(s) [L11] int s__info_callback = __VERIFIER_nondet_int() ; [L12] int s__in_handshake = __VERIFIER_nondet_int() ; [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] int s__version = __VERIFIER_nondet_int() ; [L17] int s__type ; [L18] int s__init_num ; [L19] int s__hit = __VERIFIER_nondet_int() ; [L20] int s__rwstate ; [L21] int s__init_buf___0 = 1; [L22] int s__debug = __VERIFIER_nondet_int() ; [L23] int s__shutdown ; [L24] int s__cert = __VERIFIER_nondet_int() ; [L25] int s__options = __VERIFIER_nondet_int() ; [L26] int s__verify_mode = __VERIFIER_nondet_int() ; [L27] int s__session__peer = __VERIFIER_nondet_int() ; [L28] int s__cert__pkeys__AT0__privatekey = __VERIFIER_nondet_int() ; [L29] int s__ctx__info_callback = __VERIFIER_nondet_int() ; [L30] int s__ctx__stats__sess_accept_renegotiate = __VERIFIER_nondet_int() ; [L31] int s__ctx__stats__sess_accept = __VERIFIER_nondet_int() ; [L32] int s__ctx__stats__sess_accept_good = __VERIFIER_nondet_int() ; [L33] int s__s3__tmp__cert_request ; [L34] int s__s3__tmp__reuse_message ; [L35] int s__s3__tmp__use_rsa_tmp ; [L36] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int() ; [L37] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int() ; [L38] int s__s3__tmp__next_state___0 ; [L39] int s__s3__tmp__new_cipher__algo_strength = __VERIFIER_nondet_int() ; [L40] int s__session__cipher ; [L41] int buf ; [L42] unsigned long l ; [L43] unsigned long Time ; [L44] unsigned long tmp ; [L45] int cb ; [L46] long num1 = __VERIFIER_nondet_long() ; [L47] int ret ; [L48] int new_state ; [L49] int state ; [L50] int skip ; [L51] int got_new_session ; [L52] int tmp___1 = __VERIFIER_nondet_int() ; [L53] int tmp___2 = __VERIFIER_nondet_int() ; [L54] int tmp___3 = __VERIFIER_nondet_int() ; [L55] int tmp___4 = __VERIFIER_nondet_int() ; [L56] int tmp___5 = __VERIFIER_nondet_int() ; [L57] int tmp___6 = __VERIFIER_nondet_int() ; [L58] int tmp___7 ; [L59] long tmp___8 = __VERIFIER_nondet_long() ; [L60] int tmp___9 = __VERIFIER_nondet_int() ; [L61] int tmp___10 = __VERIFIER_nondet_int() ; [L62] int blastFlag ; [L63] int __cil_tmp55 ; [L64] unsigned long __cil_tmp56 ; [L65] unsigned long __cil_tmp57 ; [L66] unsigned long __cil_tmp58 ; [L67] unsigned long __cil_tmp59 ; [L68] int __cil_tmp60 ; [L69] unsigned long __cil_tmp61 ; [L72] s__s3__tmp__reuse_message = 0 [L73] s__state = initial_state [L74] blastFlag = 0 [L75] tmp = __VERIFIER_nondet_int() [L76] Time = tmp [L77] cb = 0 [L78] ret = -1 [L79] skip = 0 [L80] got_new_session = 0 [L81] COND FALSE !(s__info_callback != 0) [L84] COND FALSE !(s__ctx__info_callback != 0) [L88] s__in_handshake ++ [L89] COND TRUE tmp___1 + 12288 [L90] COND TRUE tmp___2 + 16384 [L94] COND FALSE !(s__cert == 0) [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND TRUE s__state == 8464 [L271] s__shutdown = 0 [L272] ret = __VERIFIER_nondet_int() [L273] COND TRUE blastFlag == 0 [L274] blastFlag = 1 [L276] COND FALSE !(ret <= 0) [L279] got_new_session = 1 [L280] s__state = 8496 [L281] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND FALSE !(state == 8496) [L614] COND FALSE !(\read(s__debug)) [L620] COND FALSE !(cb != 0) [L629] skip = 0 [L98] COND TRUE 1 [L100] state = s__state [L101] COND FALSE !(s__state == 12292) [L104] COND FALSE !(s__state == 16384) [L107] COND FALSE !(s__state == 8192) [L110] COND FALSE !(s__state == 24576) [L113] COND FALSE !(s__state == 8195) [L116] COND FALSE !(s__state == 8480) [L119] COND FALSE !(s__state == 8481) [L122] COND FALSE !(s__state == 8482) [L125] COND FALSE !(s__state == 8464) [L128] COND FALSE !(s__state == 8465) [L131] COND FALSE !(s__state == 8466) [L134] COND TRUE s__state == 8496 [L285] ret = __VERIFIER_nondet_int() [L286] COND TRUE blastFlag == 1 [L287] blastFlag = 2 [L289] COND FALSE !(ret <= 0) [L292] COND FALSE !(\read(s__hit)) [L295] s__state = 8512 [L297] s__init_num = 0 [L602] COND TRUE ! s__s3__tmp__reuse_message [L603] COND TRUE ! skip [L604] COND TRUE tmp___1 != -12288 [L605] COND TRUE s__state != 8656 [L606] COND TRUE tmp___2 != -16384 [L607] COND TRUE state == 8496 [L640] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 426 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 21.7s, OverallIterations: 13, TraceHistogramMax: 2, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6766 SDtfs, 7309 SDslu, 7905 SDs, 0 SdLazy, 1381 SolverSat, 193 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 89 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5799occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 5326 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 15.4s InterpolantComputationTime, 2392 NumberOfCodeBlocks, 2392 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2179 ConstructedInterpolants, 0 QuantifiedInterpolants, 756727 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 131/131 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...