/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/eca-programs/Problem101_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 20:53:13,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 20:53:13,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 20:53:13,855 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 20:53:13,856 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 20:53:13,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 20:53:13,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 20:53:13,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 20:53:13,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 20:53:13,863 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 20:53:13,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 20:53:13,865 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 20:53:13,865 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 20:53:13,866 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 20:53:13,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 20:53:13,868 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 20:53:13,868 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 20:53:13,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 20:53:13,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 20:53:13,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 20:53:13,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 20:53:13,880 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 20:53:13,881 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 20:53:13,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 20:53:13,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 20:53:13,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 20:53:13,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 20:53:13,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 20:53:13,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 20:53:13,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 20:53:13,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 20:53:13,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 20:53:13,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 20:53:13,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 20:53:13,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 20:53:13,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 20:53:13,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 20:53:13,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 20:53:13,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 20:53:13,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 20:53:13,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 20:53:13,896 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 20:53:13,925 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 20:53:13,925 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 20:53:13,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 20:53:13,926 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 20:53:13,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 20:53:13,927 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 20:53:13,927 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 20:53:13,927 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 20:53:13,927 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 20:53:13,927 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 20:53:13,928 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 20:53:13,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 20:53:13,928 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 20:53:13,928 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 20:53:13,929 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 20:53:13,929 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 20:53:13,929 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 20:53:13,929 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 20:53:13,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 20:53:13,930 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 20:53:13,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 20:53:13,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 20:53:13,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 20:53:13,930 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 20:53:13,931 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 20:53:13,931 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 20:53:13,931 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 20:53:13,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 20:53:13,931 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 20:53:13,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 20:53:13,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 20:53:13,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:53:13,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 20:53:13,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 20:53:13,933 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 20:53:14,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 20:53:14,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 20:53:14,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 20:53:14,187 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 20:53:14,188 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 20:53:14,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label22.c [2023-04-02 20:53:15,390 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 20:53:16,946 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 20:53:16,946 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label22.c [2023-04-02 20:53:17,120 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43297fc7d/84f91318ae65486cbe358d38cf2b8ee7/FLAGf45df0f17 [2023-04-02 20:53:17,134 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43297fc7d/84f91318ae65486cbe358d38cf2b8ee7 [2023-04-02 20:53:17,137 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 20:53:17,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 20:53:17,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 20:53:17,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 20:53:17,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 20:53:17,165 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:53:17" (1/1) ... [2023-04-02 20:53:17,166 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2328ee9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:17, skipping insertion in model container [2023-04-02 20:53:17,166 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:53:17" (1/1) ... [2023-04-02 20:53:17,185 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 20:53:17,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 20:53:25,667 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label22.c[2766967,2766980] [2023-04-02 20:53:25,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:53:25,730 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 20:53:30,555 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label22.c[2766967,2766980] [2023-04-02 20:53:30,566 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:53:31,475 INFO L208 MainTranslator]: Completed translation [2023-04-02 20:53:31,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31 WrapperNode [2023-04-02 20:53:31,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 20:53:31,477 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 20:53:31,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 20:53:31,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 20:53:31,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:31,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:32,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:32,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:34,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:34,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:34,588 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:34,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:35,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 20:53:35,169 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 20:53:35,169 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 20:53:35,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 20:53:35,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (1/1) ... [2023-04-02 20:53:35,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:53:35,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 20:53:35,211 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 20:53:35,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 20:53:35,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 20:53:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 20:53:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 20:53:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 20:53:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 20:53:35,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 20:53:35,250 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 20:53:35,251 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 20:53:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 20:53:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 20:53:35,252 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 20:53:35,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 20:53:35,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 20:53:35,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 20:53:35,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 20:53:35,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 20:53:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 20:53:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 20:53:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 20:53:35,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 20:53:35,386 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 20:53:35,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 20:54:09,016 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 20:54:10,261 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 20:54:10,261 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 20:54:10,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:54:10 BoogieIcfgContainer [2023-04-02 20:54:10,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 20:54:10,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 20:54:10,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 20:54:10,278 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 20:54:10,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:53:17" (1/3) ... [2023-04-02 20:54:10,279 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492b34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:54:10, skipping insertion in model container [2023-04-02 20:54:10,280 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:31" (2/3) ... [2023-04-02 20:54:10,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2492b34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:54:10, skipping insertion in model container [2023-04-02 20:54:10,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:54:10" (3/3) ... [2023-04-02 20:54:10,290 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label22.c [2023-04-02 20:54:10,305 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 20:54:10,305 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 20:54:10,479 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 20:54:10,485 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@74df48de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 20:54:10,485 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 20:54:10,522 INFO L276 IsEmpty]: Start isEmpty. Operand has 10325 states, 10227 states have (on average 1.9860174049085753) internal successors, (20311), 10228 states have internal predecessors, (20311), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-04-02 20:54:11,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 20:54:11,382 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 20:54:11,390 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Initialized classic predicate unifier [2023-04-02 20:54:11,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1298958195, now seen corresponding path program 1 times [2023-04-02 20:54:11,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 20:54:11,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714073139] [2023-04-02 20:54:11,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 20:54:11,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 20:54:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat