/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:00:45,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:00:45,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:00:45,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:00:45,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:00:45,828 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:00:45,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:00:45,835 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:00:45,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:00:45,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:00:45,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:00:45,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:00:45,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:00:45,851 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:00:45,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:00:45,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:00:45,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:00:45,864 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:00:45,872 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:00:45,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:00:45,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:00:45,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:00:45,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:00:45,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:00:45,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:00:45,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:00:45,900 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:00:45,901 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:00:45,901 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:00:45,904 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:00:45,904 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:00:45,905 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:00:45,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:00:45,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:00:45,910 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:00:45,910 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:00:45,911 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:00:45,911 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:00:45,911 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:00:45,912 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:00:45,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:00:45,915 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 [2020-10-26 20:00:45,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:00:45,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:00:45,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:00:45,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:00:45,977 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:00:45,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:00:45,977 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:00:45,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:00:45,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:00:45,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:00:45,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:00:45,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:00:45,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:00:45,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:00:45,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:00:45,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:00:45,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:00:45,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:00:45,981 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:00:45,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:00:45,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:00:45,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:00:45,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:00:45,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:00:45,982 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:00:45,982 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:00:45,982 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:00:45,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:00:45,983 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:00:45,983 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:00:46,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:00:46,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:00:46,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:00:46,442 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:00:46,442 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:00:46,444 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-10-26 20:00:46,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1af09f17/4fc88ec000134435876c7748170b08f4/FLAG0e393eebb [2020-10-26 20:00:47,288 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:00:47,289 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/bitvector/s3_clnt_3.BV.c.cil-2a.c [2020-10-26 20:00:47,307 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1af09f17/4fc88ec000134435876c7748170b08f4/FLAG0e393eebb [2020-10-26 20:00:47,324 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c1af09f17/4fc88ec000134435876c7748170b08f4 [2020-10-26 20:00:47,327 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:00:47,334 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:00:47,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:00:47,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:00:47,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:00:47,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@579d09ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47, skipping insertion in model container [2020-10-26 20:00:47,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:00:47,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:00:47,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:00:47,649 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:00:47,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:00:47,778 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:00:47,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47 WrapperNode [2020-10-26 20:00:47,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:00:47,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:00:47,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:00:47,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:00:47,794 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (1/1) ... [2020-10-26 20:00:47,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:00:47,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:00:47,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:00:47,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:00:47,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (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 [2020-10-26 20:00:47,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:00:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:00:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:00:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ssl3_connect [2020-10-26 20:00:47,926 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:00:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:00:47,926 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:00:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:00:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:00:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:00:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-26 20:00:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ssl3_connect [2020-10-26 20:00:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:00:47,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:00:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:00:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:00:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:00:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:00:47,928 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:00:48,266 WARN L798 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2020-10-26 20:00:48,729 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2020-10-26 20:00:48,729 INFO L751 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2020-10-26 20:00:48,744 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:00:48,745 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:00:48,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:00:48 BoogieIcfgContainer [2020-10-26 20:00:48,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:00:48,749 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:00:48,749 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:00:48,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:00:48,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:00:47" (1/3) ... [2020-10-26 20:00:48,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d723aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:00:48, skipping insertion in model container [2020-10-26 20:00:48,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:00:47" (2/3) ... [2020-10-26 20:00:48,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47d723aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:00:48, skipping insertion in model container [2020-10-26 20:00:48,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:00:48" (3/3) ... [2020-10-26 20:00:48,756 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-2a.c [2020-10-26 20:00:48,768 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:00:48,774 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:00:48,789 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:00:48,818 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:00:48,818 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:00:48,819 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:00:48,819 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:00:48,819 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:00:48,819 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:00:48,819 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:00:48,819 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:00:48,841 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states. [2020-10-26 20:00:48,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-26 20:00:48,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:48,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:00:48,851 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:48,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1960577222, now seen corresponding path program 1 times [2020-10-26 20:00:48,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:48,871 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854249717] [2020-10-26 20:00:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:49,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:49,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:49,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:49,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:00:49,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:00:49,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-10-26 20:00:49,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:00:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:00:49,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-26 20:00:49,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:00:49,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:49,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:49,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:49,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:49,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:49,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:49,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:00:49,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:49,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:49,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:49,697 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:49,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:49,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854249717] [2020-10-26 20:00:49,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:49,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:00:49,715 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738088864] [2020-10-26 20:00:49,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:00:49,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:49,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:00:49,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:00:49,741 INFO L87 Difference]: Start difference. First operand 139 states. Second operand 4 states. [2020-10-26 20:00:50,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:50,348 INFO L93 Difference]: Finished difference Result 264 states and 441 transitions. [2020-10-26 20:00:50,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:00:50,350 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-10-26 20:00:50,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:50,363 INFO L225 Difference]: With dead ends: 264 [2020-10-26 20:00:50,363 INFO L226 Difference]: Without dead ends: 120 [2020-10-26 20:00:50,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:00:50,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-26 20:00:50,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-26 20:00:50,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-26 20:00:50,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 178 transitions. [2020-10-26 20:00:50,430 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 178 transitions. Word has length 32 [2020-10-26 20:00:50,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:50,430 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 178 transitions. [2020-10-26 20:00:50,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:00:50,431 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 178 transitions. [2020-10-26 20:00:50,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-26 20:00:50,433 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:50,433 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-26 20:00:50,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:00:50,433 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:50,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:50,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1670447688, now seen corresponding path program 1 times [2020-10-26 20:00:50,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:50,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1086337911] [2020-10-26 20:00:50,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:50,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:50,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:50,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:50,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:51,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:51,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-26 20:00:51,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:00:51,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-10-26 20:00:51,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:51,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:00:51,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-26 20:00:51,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-26 20:00:51,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:51,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:51,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:51,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:51,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:51,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:51,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:00:51,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:51,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:51,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:00:51,121 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:51,128 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1086337911] [2020-10-26 20:00:51,129 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:51,129 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:00:51,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003751755] [2020-10-26 20:00:51,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:00:51,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:51,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:00:51,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:00:51,144 INFO L87 Difference]: Start difference. First operand 120 states and 178 transitions. Second operand 4 states. [2020-10-26 20:00:51,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:51,610 INFO L93 Difference]: Finished difference Result 330 states and 497 transitions. [2020-10-26 20:00:51,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:00:51,611 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-26 20:00:51,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:51,615 INFO L225 Difference]: With dead ends: 330 [2020-10-26 20:00:51,615 INFO L226 Difference]: Without dead ends: 227 [2020-10-26 20:00:51,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:00:51,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-10-26 20:00:51,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2020-10-26 20:00:51,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226 states. [2020-10-26 20:00:51,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 338 transitions. [2020-10-26 20:00:51,665 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 338 transitions. Word has length 44 [2020-10-26 20:00:51,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:51,665 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 338 transitions. [2020-10-26 20:00:51,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:00:51,665 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 338 transitions. [2020-10-26 20:00:51,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-26 20:00:51,668 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:51,668 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-26 20:00:51,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:00:51,668 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:51,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:51,669 INFO L82 PathProgramCache]: Analyzing trace with hash -252780346, now seen corresponding path program 1 times [2020-10-26 20:00:51,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:51,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1546322994] [2020-10-26 20:00:51,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:51,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:51,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:51,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:51,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-26 20:00:51,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:00:51,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-26 20:00:51,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:00:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-26 20:00:51,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-26 20:00:51,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:51,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:51,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:51,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:51,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:51,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:51,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:00:51,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:51,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:51,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:51,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:00:51,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1546322994] [2020-10-26 20:00:51,970 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:51,970 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:00:51,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184951205] [2020-10-26 20:00:51,971 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:00:51,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:51,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:00:51,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:00:51,972 INFO L87 Difference]: Start difference. First operand 226 states and 338 transitions. Second operand 4 states. [2020-10-26 20:00:52,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:52,462 INFO L93 Difference]: Finished difference Result 533 states and 824 transitions. [2020-10-26 20:00:52,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:00:52,463 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2020-10-26 20:00:52,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:52,466 INFO L225 Difference]: With dead ends: 533 [2020-10-26 20:00:52,466 INFO L226 Difference]: Without dead ends: 331 [2020-10-26 20:00:52,468 INFO L677 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 [2020-10-26 20:00:52,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331 states. [2020-10-26 20:00:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 331 to 307. [2020-10-26 20:00:52,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 307 states. [2020-10-26 20:00:52,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 433 transitions. [2020-10-26 20:00:52,494 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 433 transitions. Word has length 44 [2020-10-26 20:00:52,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:52,494 INFO L481 AbstractCegarLoop]: Abstraction has 307 states and 433 transitions. [2020-10-26 20:00:52,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:00:52,495 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 433 transitions. [2020-10-26 20:00:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-26 20:00:52,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:52,498 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:00:52,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:00:52,498 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:52,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:52,499 INFO L82 PathProgramCache]: Analyzing trace with hash -515296195, now seen corresponding path program 1 times [2020-10-26 20:00:52,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:52,499 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [829022201] [2020-10-26 20:00:52,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:52,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:52,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:52,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:52,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-26 20:00:52,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:00:52,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-26 20:00:52,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-26 20:00:52,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:00:52,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:00:52,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:00:52,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:00:52,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:00:52,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:00:52,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:00:52,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:00:52,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:00:52,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:00:52,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:00:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:00:52,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:00:52,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-26 20:00:52,806 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:00:52,807 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [829022201] [2020-10-26 20:00:52,807 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:00:52,807 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:00:52,807 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072419793] [2020-10-26 20:00:52,808 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-26 20:00:52,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:00:52,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-26 20:00:52,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-26 20:00:52,810 INFO L87 Difference]: Start difference. First operand 307 states and 433 transitions. Second operand 4 states. [2020-10-26 20:00:53,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:00:53,223 INFO L93 Difference]: Finished difference Result 631 states and 903 transitions. [2020-10-26 20:00:53,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-26 20:00:53,225 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2020-10-26 20:00:53,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:00:53,229 INFO L225 Difference]: With dead ends: 631 [2020-10-26 20:00:53,229 INFO L226 Difference]: Without dead ends: 348 [2020-10-26 20:00:53,230 INFO L677 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 [2020-10-26 20:00:53,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-26 20:00:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 340. [2020-10-26 20:00:53,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2020-10-26 20:00:53,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 474 transitions. [2020-10-26 20:00:53,262 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 474 transitions. Word has length 58 [2020-10-26 20:00:53,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:00:53,264 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 474 transitions. [2020-10-26 20:00:53,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-26 20:00:53,265 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 474 transitions. [2020-10-26 20:00:53,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-26 20:00:53,275 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:00:53,278 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:00:53,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:00:53,278 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:00:53,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:00:53,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1496094579, now seen corresponding path program 1 times [2020-10-26 20:00:53,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:00:53,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101692045] [2020-10-26 20:00:53,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:00:53,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 20:00:53,320 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 20:00:53,321 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 20:00:53,325 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:00:53,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:00:53 BoogieIcfgContainer [2020-10-26 20:00:53,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:00:53,372 INFO L168 Benchmark]: Toolchain (without parser) took 6041.29 ms. Allocated memory was 158.3 MB in the beginning and 212.9 MB in the end (delta: 54.5 MB). Free memory was 133.0 MB in the beginning and 90.3 MB in the end (delta: 42.7 MB). Peak memory consumption was 98.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:53,373 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 158.3 MB. Free memory was 128.9 MB in the beginning and 128.9 MB in the end (delta: 73.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:00:53,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 443.82 ms. Allocated memory is still 158.3 MB. Free memory was 132.4 MB in the beginning and 118.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:53,377 INFO L168 Benchmark]: Boogie Preprocessor took 62.02 ms. Allocated memory is still 158.3 MB. Free memory was 118.0 MB in the beginning and 115.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:53,380 INFO L168 Benchmark]: RCFGBuilder took 903.93 ms. Allocated memory is still 158.3 MB. Free memory was 115.6 MB in the beginning and 104.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:53,385 INFO L168 Benchmark]: TraceAbstraction took 4620.29 ms. Allocated memory was 158.3 MB in the beginning and 212.9 MB in the end (delta: 54.5 MB). Free memory was 104.3 MB in the beginning and 90.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 68.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:00:53,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 158.3 MB. Free memory was 128.9 MB in the beginning and 128.9 MB in the end (delta: 73.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 443.82 ms. Allocated memory is still 158.3 MB. Free memory was 132.4 MB in the beginning and 118.0 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 62.02 ms. Allocated memory is still 158.3 MB. Free memory was 118.0 MB in the beginning and 115.7 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 903.93 ms. Allocated memory is still 158.3 MB. Free memory was 115.6 MB in the beginning and 104.3 MB in the end (delta: 11.3 MB). Peak memory consumption was 13.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4620.29 ms. Allocated memory was 158.3 MB in the beginning and 212.9 MB in the end (delta: 54.5 MB). Free memory was 104.3 MB in the beginning and 90.3 MB in the end (delta: 14.0 MB). Peak memory consumption was 68.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 303. Possible FailurePath: [L625] int __retres1 ; [L629] CALL ssl3_connect() [L11] int s__info_callback = __VERIFIER_nondet_int(); [L12] unsigned int s__in_handshake = __VERIFIER_nondet_uint(); [L13] int s__state ; [L14] int s__new_session ; [L15] int s__server ; [L16] unsigned int s__version = __VERIFIER_nondet_uint(); [L17] int s__type ; [L18] int s__init_num ; [L19] int s__bbio = __VERIFIER_nondet_int(); [L20] int s__wbio = __VERIFIER_nondet_int(); [L21] int s__hit = __VERIFIER_nondet_int(); [L22] int s__rwstate ; [L23] int s__init_buf___0 ; [L24] int s__debug = __VERIFIER_nondet_int(); [L25] int s__shutdown ; [L26] int s__ctx__info_callback = __VERIFIER_nondet_int(); [L27] unsigned int s__ctx__stats__sess_connect_renegotiate ; [L28] unsigned int s__ctx__stats__sess_connect ; [L29] unsigned int s__ctx__stats__sess_hit = __VERIFIER_nondet_uint(); [L30] unsigned int s__ctx__stats__sess_connect_good = __VERIFIER_nondet_uint(); [L31] int s__s3__change_cipher_spec ; [L32] int s__s3__flags ; [L33] int s__s3__delay_buf_pop_ret ; [L34] int s__s3__tmp__cert_req = __VERIFIER_nondet_int(); [L35] int s__s3__tmp__new_compression = __VERIFIER_nondet_int(); [L36] int s__s3__tmp__reuse_message = __VERIFIER_nondet_int(); [L37] int s__s3__tmp__new_cipher = __VERIFIER_nondet_int(); [L38] int s__s3__tmp__new_cipher__algorithms = __VERIFIER_nondet_int(); [L39] int s__s3__tmp__next_state___0 ; [L40] int s__s3__tmp__new_compression__id = __VERIFIER_nondet_int(); [L41] int s__session__cipher ; [L42] int s__session__compress_meth ; [L43] int buf ; [L44] unsigned long tmp ; [L45] unsigned long l ; [L46] int num1 ; [L47] int cb ; [L48] int ret ; [L49] int new_state ; [L50] int state ; [L51] int skip ; [L52] int tmp___0 ; [L53] unsigned int tmp___1 = __VERIFIER_nondet_uint(); [L54] unsigned int tmp___2 = __VERIFIER_nondet_uint(); [L55] int tmp___3 = __VERIFIER_nondet_int(); [L56] int tmp___4 = __VERIFIER_nondet_int(); [L57] int tmp___5 = __VERIFIER_nondet_int(); [L58] int tmp___6 = __VERIFIER_nondet_int(); [L59] int tmp___7 = __VERIFIER_nondet_int(); [L60] int tmp___8 = __VERIFIER_nondet_int(); [L61] int tmp___9 = __VERIFIER_nondet_int(); [L62] int blastFlag ; [L63] int ag_X ; [L64] int ag_Y ; [L65] int ag_Z ; [L66] int __retres60 ; [L69] s__state = 12292 [L70] blastFlag = 0 [L71] tmp = __VERIFIER_nondet_int() [L72] cb = 0 [L73] ret = -1 [L74] skip = 0 [L75] tmp___0 = 0 [L76] COND TRUE s__info_callback != 0 [L77] cb = s__info_callback [L85] s__in_handshake = s__in_handshake + 1 [L86] COND FALSE !(tmp___1 + 12288) [L95] COND TRUE \read(s__hit) [L96] ag_Y = 208 [L101] COND TRUE 1 [L103] state = s__state [L104] COND TRUE s__state == 12292 [L207] s__new_session = 1 [L208] s__state = 4096 [L209] s__ctx__stats__sess_connect_renegotiate = s__ctx__stats__sess_connect_renegotiate + 1 [L214] s__server = 0 [L215] COND TRUE cb != 0 [L220] COND FALSE !(s__version + 65280 != 768) [L226] s__type = 4096 [L227] COND FALSE !((unsigned long )s__init_buf___0 == (unsigned long )((void *)0)) [L245] COND FALSE !(! tmp___4) [L251] COND FALSE !(! tmp___5) [L257] s__state = 4368 [L258] s__ctx__stats__sess_connect = s__ctx__stats__sess_connect + 1 [L259] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND TRUE s__state == 4368 [L263] s__shutdown = 0 [L264] ret = __VERIFIER_nondet_int() [L265] COND TRUE blastFlag == 0 [L266] blastFlag = 1 [L270] COND FALSE !(ret <= 0) [L275] s__state = 4384 [L276] ag_X = s__state - 32 [L277] s__init_num = 0 [L278] COND TRUE (unsigned long )s__bbio != (unsigned long )s__wbio [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND TRUE s__state == 4384 [L286] ret = __VERIFIER_nondet_int() [L287] COND TRUE blastFlag == 1 [L288] blastFlag = 2 [L296] COND FALSE !(ret <= 0) [L301] s__state = ag_X [L302] COND TRUE \read(s__hit) [L303] s__state = s__state | ag_Y [L307] s__init_num = 0 [L574] COND FALSE !(! s__s3__tmp__reuse_message) [L603] skip = 0 [L101] COND TRUE 1 [L103] state = s__state [L104] COND FALSE !(s__state == 12292) [L107] COND FALSE !(s__state == 16384) [L110] COND FALSE !(s__state == 4096) [L113] COND FALSE !(s__state == 20480) [L116] COND FALSE !(s__state == 4099) [L119] COND FALSE !(s__state == 4368) [L122] COND FALSE !(s__state == 4369) [L125] COND FALSE !(s__state == 4384) [L128] COND FALSE !(s__state == 4385) [L131] COND FALSE !(s__state == 4400) [L134] COND FALSE !(s__state == 4401) [L137] COND FALSE !(s__state == 4416) [L140] COND FALSE !(s__state == 4417) [L143] COND TRUE s__state == 4432 [L353] ret = __VERIFIER_nondet_int() [L354] COND TRUE blastFlag <= 5 [L616] CALL reach_error() [L3] __assert_fail("0", "s3_clnt_3.BV.c.cil-2a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 139 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 4, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 713 SDtfs, 1169 SDslu, 35 SDs, 0 SdLazy, 745 SolverSat, 64 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=340occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 33 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 253 NumberOfCodeBlocks, 253 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 174 ConstructedInterpolants, 0 QuantifiedInterpolants, 19688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 22/22 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...