/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_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 20:50:10,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 20:50:10,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 20:50:10,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 20:50:10,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 20:50:10,879 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 20:50:10,880 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 20:50:10,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 20:50:10,886 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 20:50:10,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 20:50:10,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 20:50:10,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 20:50:10,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 20:50:10,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 20:50:10,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 20:50:10,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 20:50:10,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 20:50:10,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 20:50:10,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 20:50:10,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 20:50:10,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 20:50:10,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 20:50:10,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 20:50:10,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 20:50:10,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 20:50:10,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 20:50:10,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 20:50:10,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 20:50:10,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 20:50:10,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 20:50:10,917 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 20:50:10,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 20:50:10,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 20:50:10,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 20:50:10,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 20:50:10,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 20:50:10,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 20:50:10,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 20:50:10,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 20:50:10,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 20:50:10,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 20:50:10,922 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 20:50:10,945 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 20:50:10,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 20:50:10,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 20:50:10,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 20:50:10,946 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 20:50:10,946 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 20:50:10,946 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 20:50:10,946 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 20:50:10,947 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 20:50:10,947 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 20:50:10,947 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 20:50:10,947 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 20:50:10,947 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 20:50:10,947 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 20:50:10,948 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 20:50:10,948 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 20:50:10,948 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 20:50:10,948 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 20:50:10,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 20:50:10,948 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 20:50:10,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 20:50:10,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 20:50:10,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 20:50:10,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 20:50:10,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:50:10,950 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 20:50:10,950 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 20:50:10,950 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 20:50:10,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 20:50:10,950 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 20:50:10,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 20:50:10,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 20:50:10,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 20:50:10,950 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 20:50:11,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 20:50:11,146 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 20:50:11,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 20:50:11,149 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 20:50:11,149 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 20:50:11,150 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label13.c [2023-04-02 20:50:12,063 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 20:50:13,271 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 20:50:13,272 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label13.c [2023-04-02 20:50:13,359 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81af3ba76/eac511f17e8b4b11a7bb65cff93431c2/FLAG5482eb2ec [2023-04-02 20:50:13,368 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81af3ba76/eac511f17e8b4b11a7bb65cff93431c2 [2023-04-02 20:50:13,370 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 20:50:13,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 20:50:13,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 20:50:13,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 20:50:13,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 20:50:13,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:50:13" (1/1) ... [2023-04-02 20:50:13,374 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fa8eaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:13, skipping insertion in model container [2023-04-02 20:50:13,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:50:13" (1/1) ... [2023-04-02 20:50:13,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 20:50:13,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 20:50:20,791 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_label13.c[2767821,2767834] [2023-04-02 20:50:20,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:50:20,850 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 20:50:24,881 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_label13.c[2767821,2767834] [2023-04-02 20:50:24,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:50:25,780 INFO L208 MainTranslator]: Completed translation [2023-04-02 20:50:25,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25 WrapperNode [2023-04-02 20:50:25,781 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 20:50:25,782 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 20:50:25,782 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 20:50:25,782 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 20:50:25,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:25,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:26,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:26,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:28,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:28,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:28,606 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:28,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:29,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 20:50:29,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 20:50:29,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 20:50:29,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 20:50:29,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (1/1) ... [2023-04-02 20:50:29,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:50:29,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 20:50:29,305 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 20:50:29,321 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 20:50:29,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 20:50:29,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 20:50:29,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 20:50:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 20:50:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 20:50:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 20:50:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 20:50:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 20:50:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 20:50:29,336 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 20:50:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 20:50:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 20:50:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 20:50:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 20:50:29,337 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 20:50:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 20:50:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 20:50:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 20:50:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 20:50:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 20:50:29,338 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 20:50:29,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 20:50:29,339 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 20:50:29,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 20:50:29,341 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 20:50:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 20:50:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 20:50:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 20:50:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 20:50:29,342 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 20:50:29,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 20:50:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 20:50:29,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 20:50:29,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 20:50:29,487 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 20:50:29,490 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 20:50:59,008 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 20:50:59,811 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 20:50:59,811 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 20:50:59,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:50:59 BoogieIcfgContainer [2023-04-02 20:50:59,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 20:50:59,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 20:50:59,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 20:50:59,824 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 20:50:59,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:50:13" (1/3) ... [2023-04-02 20:50:59,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d28619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:50:59, skipping insertion in model container [2023-04-02 20:50:59,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:50:25" (2/3) ... [2023-04-02 20:50:59,825 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42d28619 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:50:59, skipping insertion in model container [2023-04-02 20:50:59,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:50:59" (3/3) ... [2023-04-02 20:50:59,826 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label13.c [2023-04-02 20:50:59,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 20:50:59,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 20:50:59,986 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 20:50:59,991 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;@5fcee69e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 20:50:59,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 20:51:00,019 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 20:51:00,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 20:51:00,916 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 20:51:00,930 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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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 20:51:00,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 20:51:00,935 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 20:51:00,939 INFO L85 PathProgramCache]: Analyzing trace with hash -1298907904, now seen corresponding path program 1 times [2023-04-02 20:51:00,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 20:51:00,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392074648] [2023-04-02 20:51:00,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 20:51:00,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 20:51:03,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 20:54:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 20:54:12,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 20:54:12,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392074648] [2023-04-02 20:54:12,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392074648] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 20:54:12,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 20:54:12,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 20:54:12,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447155178] [2023-04-02 20:54:12,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 20:54:12,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 20:54:12,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 20:54:12,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 20:54:12,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 20:54:12,884 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 3 states have (on average 3377.3333333333335) internal successors, (10132), 2 states have internal predecessors, (10132), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)