/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 --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=DEEPEST -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/list-properties/list_flag-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 21:07:08,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 21:07:08,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 21:07:08,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 21:07:08,684 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 21:07:08,688 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 21:07:08,690 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 21:07:08,691 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 21:07:08,696 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 21:07:08,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 21:07:08,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 21:07:08,702 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 21:07:08,703 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 21:07:08,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 21:07:08,707 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 21:07:08,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 21:07:08,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 21:07:08,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 21:07:08,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 21:07:08,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 21:07:08,719 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 21:07:08,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 21:07:08,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 21:07:08,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 21:07:08,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 21:07:08,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 21:07:08,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 21:07:08,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 21:07:08,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 21:07:08,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 21:07:08,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 21:07:08,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 21:07:08,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 21:07:08,738 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 21:07:08,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 21:07:08,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 21:07:08,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 21:07:08,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 21:07:08,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 21:07:08,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 21:07:08,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 21:07:08,744 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 [2020-08-18 21:07:08,784 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 21:07:08,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 21:07:08,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 21:07:08,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 21:07:08,787 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 21:07:08,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 21:07:08,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 21:07:08,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 21:07:08,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 21:07:08,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 21:07:08,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 21:07:08,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 21:07:08,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 21:07:08,790 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 21:07:08,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 21:07:08,790 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 21:07:08,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 21:07:08,791 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 21:07:08,791 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 21:07:08,791 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 21:07:08,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 21:07:08,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 21:07:08,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 21:07:08,792 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 21:07:08,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 21:07:08,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 21:07:08,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 21:07:08,793 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 21:07:08,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 21:07:08,793 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.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=DEEPEST; [2020-08-18 21:07:09,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 21:07:09,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 21:07:09,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 21:07:09,113 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 21:07:09,114 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 21:07:09,114 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/list_flag-1.i [2020-08-18 21:07:09,175 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3cfbe0a56/63cb2b664d6a411aa00b714c306b4ce9/FLAGe61221c92 [2020-08-18 21:07:09,684 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 21:07:09,685 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/list-properties/list_flag-1.i [2020-08-18 21:07:09,698 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3cfbe0a56/63cb2b664d6a411aa00b714c306b4ce9/FLAGe61221c92 [2020-08-18 21:07:09,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/3cfbe0a56/63cb2b664d6a411aa00b714c306b4ce9 [2020-08-18 21:07:09,995 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 21:07:09,997 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 21:07:09,998 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 21:07:09,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 21:07:10,002 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 21:07:10,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:07:09" (1/1) ... [2020-08-18 21:07:10,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c04ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10, skipping insertion in model container [2020-08-18 21:07:10,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 09:07:09" (1/1) ... [2020-08-18 21:07:10,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 21:07:10,052 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 21:07:10,448 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:07:10,461 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 21:07:10,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 21:07:10,600 INFO L208 MainTranslator]: Completed translation [2020-08-18 21:07:10,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10 WrapperNode [2020-08-18 21:07:10,602 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 21:07:10,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 21:07:10,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 21:07:10,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 21:07:10,612 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (1/1) ... [2020-08-18 21:07:10,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (1/1) ... [2020-08-18 21:07:10,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (1/1) ... [2020-08-18 21:07:10,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (1/1) ... [2020-08-18 21:07:10,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (1/1) ... [2020-08-18 21:07:10,650 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (1/1) ... [2020-08-18 21:07:10,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (1/1) ... [2020-08-18 21:07:10,659 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 21:07:10,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 21:07:10,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 21:07:10,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 21:07:10,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (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 [2020-08-18 21:07:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 21:07:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 21:07:10,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2020-08-18 21:07:10,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2020-08-18 21:07:10,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2020-08-18 21:07:10,746 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2020-08-18 21:07:10,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2020-08-18 21:07:10,747 INFO L138 BoogieDeclarations]: Found implementation of procedure myexit [2020-08-18 21:07:10,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 21:07:10,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 21:07:10,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 21:07:10,749 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2020-08-18 21:07:10,749 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2020-08-18 21:07:10,749 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2020-08-18 21:07:10,749 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2020-08-18 21:07:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2020-08-18 21:07:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2020-08-18 21:07:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2020-08-18 21:07:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2020-08-18 21:07:10,750 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2020-08-18 21:07:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2020-08-18 21:07:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2020-08-18 21:07:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2020-08-18 21:07:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2020-08-18 21:07:10,751 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2020-08-18 21:07:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2020-08-18 21:07:10,752 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2020-08-18 21:07:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2020-08-18 21:07:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2020-08-18 21:07:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2020-08-18 21:07:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2020-08-18 21:07:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2020-08-18 21:07:10,753 INFO L130 BoogieDeclarations]: Found specification of procedure select [2020-08-18 21:07:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2020-08-18 21:07:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2020-08-18 21:07:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2020-08-18 21:07:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2020-08-18 21:07:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure random [2020-08-18 21:07:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2020-08-18 21:07:10,754 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2020-08-18 21:07:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2020-08-18 21:07:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2020-08-18 21:07:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2020-08-18 21:07:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2020-08-18 21:07:10,755 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2020-08-18 21:07:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2020-08-18 21:07:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2020-08-18 21:07:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2020-08-18 21:07:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2020-08-18 21:07:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2020-08-18 21:07:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2020-08-18 21:07:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2020-08-18 21:07:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2020-08-18 21:07:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2020-08-18 21:07:10,759 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2020-08-18 21:07:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2020-08-18 21:07:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2020-08-18 21:07:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2020-08-18 21:07:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2020-08-18 21:07:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2020-08-18 21:07:10,760 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2020-08-18 21:07:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2020-08-18 21:07:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2020-08-18 21:07:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2020-08-18 21:07:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2020-08-18 21:07:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2020-08-18 21:07:10,761 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-18 21:07:10,762 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-08-18 21:07:10,763 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2020-08-18 21:07:10,763 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-18 21:07:10,763 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2020-08-18 21:07:10,763 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2020-08-18 21:07:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2020-08-18 21:07:10,764 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2020-08-18 21:07:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 21:07:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2020-08-18 21:07:10,765 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2020-08-18 21:07:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2020-08-18 21:07:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-18 21:07:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2020-08-18 21:07:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2020-08-18 21:07:10,766 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2020-08-18 21:07:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2020-08-18 21:07:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2020-08-18 21:07:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2020-08-18 21:07:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2020-08-18 21:07:10,767 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2020-08-18 21:07:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2020-08-18 21:07:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2020-08-18 21:07:10,768 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2020-08-18 21:07:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure system [2020-08-18 21:07:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2020-08-18 21:07:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2020-08-18 21:07:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2020-08-18 21:07:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2020-08-18 21:07:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2020-08-18 21:07:10,769 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure div [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2020-08-18 21:07:10,770 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2020-08-18 21:07:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2020-08-18 21:07:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2020-08-18 21:07:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2020-08-18 21:07:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2020-08-18 21:07:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2020-08-18 21:07:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2020-08-18 21:07:10,771 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2020-08-18 21:07:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2020-08-18 21:07:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2020-08-18 21:07:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2020-08-18 21:07:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2020-08-18 21:07:10,772 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2020-08-18 21:07:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2020-08-18 21:07:10,773 INFO L130 BoogieDeclarations]: Found specification of procedure myexit [2020-08-18 21:07:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 21:07:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-18 21:07:10,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-18 21:07:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-18 21:07:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-18 21:07:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-18 21:07:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 21:07:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 21:07:10,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-18 21:07:11,137 INFO L732 $ProcedureCfgBuilder]: dead code at ProgramPoint myexitFINAL: assume true; [2020-08-18 21:07:11,290 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 21:07:11,290 INFO L295 CfgBuilder]: Removed 3 assume(true) statements. [2020-08-18 21:07:11,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:07:11 BoogieIcfgContainer [2020-08-18 21:07:11,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 21:07:11,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 21:07:11,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 21:07:11,300 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 21:07:11,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 09:07:09" (1/3) ... [2020-08-18 21:07:11,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71dee5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:07:11, skipping insertion in model container [2020-08-18 21:07:11,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 09:07:10" (2/3) ... [2020-08-18 21:07:11,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71dee5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 09:07:11, skipping insertion in model container [2020-08-18 21:07:11,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 09:07:11" (3/3) ... [2020-08-18 21:07:11,304 INFO L109 eAbstractionObserver]: Analyzing ICFG list_flag-1.i [2020-08-18 21:07:11,317 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 21:07:11,325 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 21:07:11,342 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 21:07:11,369 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 21:07:11,370 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 21:07:11,370 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 21:07:11,370 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 21:07:11,370 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 21:07:11,370 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 21:07:11,371 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 21:07:11,371 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 21:07:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-08-18 21:07:11,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-18 21:07:11,398 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:07:11,399 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:07:11,400 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:07:11,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:07:11,406 INFO L82 PathProgramCache]: Analyzing trace with hash 1184417696, now seen corresponding path program 1 times [2020-08-18 21:07:11,415 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:07:11,416 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930029942] [2020-08-18 21:07:11,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:07:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:11,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:07:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:11,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:07:11,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930029942] [2020-08-18 21:07:11,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:07:11,603 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-18 21:07:11,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42911959] [2020-08-18 21:07:11,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-18 21:07:11,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:07:11,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-18 21:07:11,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:07:11,628 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-08-18 21:07:11,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:07:11,728 INFO L93 Difference]: Finished difference Result 46 states and 61 transitions. [2020-08-18 21:07:11,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-18 21:07:11,730 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2020-08-18 21:07:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:07:11,738 INFO L225 Difference]: With dead ends: 46 [2020-08-18 21:07:11,738 INFO L226 Difference]: Without dead ends: 24 [2020-08-18 21:07:11,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-18 21:07:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-08-18 21:07:11,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-08-18 21:07:11,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-18 21:07:11,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-08-18 21:07:11,773 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2020-08-18 21:07:11,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:07:11,774 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-08-18 21:07:11,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-18 21:07:11,774 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-08-18 21:07:11,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-18 21:07:11,775 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:07:11,775 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:07:11,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 21:07:11,776 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:07:11,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:07:11,790 INFO L82 PathProgramCache]: Analyzing trace with hash -218242506, now seen corresponding path program 1 times [2020-08-18 21:07:11,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:07:11,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [816102038] [2020-08-18 21:07:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:07:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:11,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:07:11,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:07:11,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [816102038] [2020-08-18 21:07:11,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:07:11,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:07:11,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16365154] [2020-08-18 21:07:11,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 21:07:11,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:07:11,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 21:07:11,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 21:07:11,927 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 6 states. [2020-08-18 21:07:12,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:07:12,075 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2020-08-18 21:07:12,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 21:07:12,076 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2020-08-18 21:07:12,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:07:12,077 INFO L225 Difference]: With dead ends: 48 [2020-08-18 21:07:12,077 INFO L226 Difference]: Without dead ends: 44 [2020-08-18 21:07:12,078 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:07:12,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-08-18 21:07:12,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 32. [2020-08-18 21:07:12,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-08-18 21:07:12,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-08-18 21:07:12,087 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 17 [2020-08-18 21:07:12,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:07:12,088 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-08-18 21:07:12,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 21:07:12,088 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-08-18 21:07:12,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-18 21:07:12,089 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:07:12,089 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:07:12,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 21:07:12,090 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:07:12,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:07:12,090 INFO L82 PathProgramCache]: Analyzing trace with hash 771025649, now seen corresponding path program 1 times [2020-08-18 21:07:12,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:07:12,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495588130] [2020-08-18 21:07:12,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:07:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:12,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:07:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:12,208 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:07:12,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495588130] [2020-08-18 21:07:12,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:07:12,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:07:12,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995997201] [2020-08-18 21:07:12,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 21:07:12,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:07:12,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 21:07:12,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 21:07:12,211 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 6 states. [2020-08-18 21:07:12,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:07:12,358 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-08-18 21:07:12,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 21:07:12,358 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-08-18 21:07:12,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:07:12,359 INFO L225 Difference]: With dead ends: 50 [2020-08-18 21:07:12,359 INFO L226 Difference]: Without dead ends: 42 [2020-08-18 21:07:12,360 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:07:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-08-18 21:07:12,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 30. [2020-08-18 21:07:12,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-08-18 21:07:12,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2020-08-18 21:07:12,367 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 19 [2020-08-18 21:07:12,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:07:12,367 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2020-08-18 21:07:12,367 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 21:07:12,367 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2020-08-18 21:07:12,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-18 21:07:12,368 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:07:12,369 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:07:12,369 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 21:07:12,369 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:07:12,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:07:12,370 INFO L82 PathProgramCache]: Analyzing trace with hash -472715872, now seen corresponding path program 1 times [2020-08-18 21:07:12,370 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:07:12,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357994111] [2020-08-18 21:07:12,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:07:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:12,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:07:12,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:12,505 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:07:12,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357994111] [2020-08-18 21:07:12,509 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:07:12,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 21:07:12,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882347630] [2020-08-18 21:07:12,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 21:07:12,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:07:12,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 21:07:12,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 21:07:12,512 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand 6 states. [2020-08-18 21:07:12,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:07:12,668 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2020-08-18 21:07:12,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-18 21:07:12,669 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-08-18 21:07:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:07:12,671 INFO L225 Difference]: With dead ends: 48 [2020-08-18 21:07:12,672 INFO L226 Difference]: Without dead ends: 38 [2020-08-18 21:07:12,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-08-18 21:07:12,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-08-18 21:07:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 26. [2020-08-18 21:07:12,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-08-18 21:07:12,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2020-08-18 21:07:12,682 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 19 [2020-08-18 21:07:12,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:07:12,682 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2020-08-18 21:07:12,683 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 21:07:12,683 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2020-08-18 21:07:12,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-18 21:07:12,683 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:07:12,684 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:07:12,685 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-18 21:07:12,685 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:07:12,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:07:12,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1962636917, now seen corresponding path program 1 times [2020-08-18 21:07:12,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:07:12,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160561099] [2020-08-18 21:07:12,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:07:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:12,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 21:07:12,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 21:07:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 21:07:12,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160561099] [2020-08-18 21:07:12,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 21:07:12,799 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-18 21:07:12,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995200479] [2020-08-18 21:07:12,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-18 21:07:12,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 21:07:12,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-18 21:07:12,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 21:07:12,801 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 4 states. [2020-08-18 21:07:12,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 21:07:12,865 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2020-08-18 21:07:12,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-08-18 21:07:12,866 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2020-08-18 21:07:12,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 21:07:12,867 INFO L225 Difference]: With dead ends: 54 [2020-08-18 21:07:12,867 INFO L226 Difference]: Without dead ends: 38 [2020-08-18 21:07:12,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-18 21:07:12,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-08-18 21:07:12,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2020-08-18 21:07:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-08-18 21:07:12,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2020-08-18 21:07:12,873 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 23 [2020-08-18 21:07:12,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 21:07:12,874 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2020-08-18 21:07:12,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-18 21:07:12,874 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-08-18 21:07:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-08-18 21:07:12,875 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 21:07:12,875 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 21:07:12,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-18 21:07:12,876 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 21:07:12,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 21:07:12,876 INFO L82 PathProgramCache]: Analyzing trace with hash 1888593434, now seen corresponding path program 1 times [2020-08-18 21:07:12,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 21:07:12,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1159841432] [2020-08-18 21:07:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 21:07:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-18 21:07:12,900 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-18 21:07:12,900 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-18 21:07:12,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-18 21:07:12,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 09:07:12 BoogieIcfgContainer [2020-08-18 21:07:12,921 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 21:07:12,924 INFO L168 Benchmark]: Toolchain (without parser) took 2926.66 ms. Allocated memory was 142.1 MB in the beginning and 234.9 MB in the end (delta: 92.8 MB). Free memory was 104.4 MB in the beginning and 108.8 MB in the end (delta: -4.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 7.1 GB. [2020-08-18 21:07:12,925 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 123.7 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-18 21:07:12,926 INFO L168 Benchmark]: CACSL2BoogieTranslator took 604.62 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 104.2 MB in the beginning and 172.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-08-18 21:07:12,927 INFO L168 Benchmark]: Boogie Preprocessor took 56.87 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 169.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2020-08-18 21:07:12,928 INFO L168 Benchmark]: RCFGBuilder took 634.40 ms. Allocated memory is still 205.5 MB. Free memory was 169.7 MB in the beginning and 126.0 MB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. [2020-08-18 21:07:12,929 INFO L168 Benchmark]: TraceAbstraction took 1625.44 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 125.4 MB in the beginning and 108.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. [2020-08-18 21:07:12,932 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 142.1 MB. Free memory was 123.7 MB in the beginning and 123.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 604.62 ms. Allocated memory was 142.1 MB in the beginning and 205.5 MB in the end (delta: 63.4 MB). Free memory was 104.2 MB in the beginning and 172.2 MB in the end (delta: -68.1 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 56.87 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 169.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 634.40 ms. Allocated memory is still 205.5 MB. Free memory was 169.7 MB in the beginning and 126.0 MB in the end (delta: 43.7 MB). Peak memory consumption was 43.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1625.44 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 125.4 MB in the beginning and 108.8 MB in the end (delta: 16.6 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 546]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L521] int flag = __VERIFIER_nondet_int(); [L522] List p, a, t; [L523] a = (List) malloc(sizeof(struct node)) [L524] COND FALSE !(a == 0) [L525] p = a [L526] COND TRUE __VERIFIER_nondet_int() [L527] COND TRUE \read(flag) [L528] p->h = 1 [L532] t = (List) malloc(sizeof(struct node)) [L533] COND FALSE !(t == 0) [L534] p->n = t [L535] EXPR p->n [L535] p = p->n [L526] COND FALSE !(__VERIFIER_nondet_int()) [L537] p->h = 3 [L538] p = a [L539] COND TRUE \read(flag) [L540] EXPR p->h [L540] COND FALSE !(p->h == 2) [L545] EXPR p->h [L545] COND TRUE p->h != 3 [L546] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 120 SDtfs, 73 SDslu, 178 SDs, 0 SdLazy, 288 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 116 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 88 ConstructedInterpolants, 0 QuantifiedInterpolants, 4694 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 6/6 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...