/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_label04.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 20:48:47,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 20:48:47,215 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 20:48:47,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 20:48:47,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 20:48:47,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 20:48:47,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 20:48:47,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 20:48:47,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 20:48:47,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 20:48:47,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 20:48:47,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 20:48:47,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 20:48:47,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 20:48:47,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 20:48:47,264 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 20:48:47,265 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 20:48:47,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 20:48:47,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 20:48:47,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 20:48:47,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 20:48:47,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 20:48:47,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 20:48:47,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 20:48:47,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 20:48:47,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 20:48:47,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 20:48:47,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 20:48:47,278 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 20:48:47,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 20:48:47,279 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 20:48:47,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 20:48:47,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 20:48:47,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 20:48:47,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 20:48:47,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 20:48:47,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 20:48:47,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 20:48:47,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 20:48:47,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 20:48:47,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 20:48:47,285 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 20:48:47,305 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 20:48:47,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 20:48:47,306 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 20:48:47,306 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 20:48:47,307 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 20:48:47,307 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 20:48:47,307 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 20:48:47,307 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 20:48:47,307 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 20:48:47,307 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 20:48:47,307 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 20:48:47,307 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 20:48:47,308 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 20:48:47,308 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 20:48:47,308 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 20:48:47,308 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 20:48:47,308 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 20:48:47,308 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 20:48:47,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 20:48:47,309 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 20:48:47,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 20:48:47,309 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 20:48:47,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 20:48:47,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 20:48:47,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 20:48:47,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 20:48:47,310 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 20:48:47,310 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 20:48:47,310 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 20:48:47,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 20:48:47,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 20:48:47,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 20:48:47,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:48:47,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 20:48:47,311 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 20:48:47,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 20:48:47,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 20:48:47,311 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 20:48:47,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 20:48:47,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 20:48:47,311 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 20:48:47,311 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 20:48:47,508 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 20:48:47,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 20:48:47,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 20:48:47,533 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 20:48:47,533 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 20:48:47,534 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label04.c [2023-04-02 20:48:48,695 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 20:48:50,258 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 20:48:50,259 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label04.c [2023-04-02 20:48:50,395 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6baf35236/6903127e8b344236b502119f21e629fc/FLAG4e5ca8bde [2023-04-02 20:48:50,405 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6baf35236/6903127e8b344236b502119f21e629fc [2023-04-02 20:48:50,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 20:48:50,408 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 20:48:50,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 20:48:50,409 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 20:48:50,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 20:48:50,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:48:50" (1/1) ... [2023-04-02 20:48:50,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7d2554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:48:50, skipping insertion in model container [2023-04-02 20:48:50,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:48:50" (1/1) ... [2023-04-02 20:48:50,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 20:48:51,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 20:48:58,624 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_label04.c[2768161,2768174] [2023-04-02 20:48:58,682 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:48:58,690 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 20:49:02,832 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_label04.c[2768161,2768174] [2023-04-02 20:49:02,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:49:03,765 INFO L208 MainTranslator]: Completed translation [2023-04-02 20:49:03,765 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03 WrapperNode [2023-04-02 20:49:03,765 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 20:49:03,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 20:49:03,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 20:49:03,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 20:49:03,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:03,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:04,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:04,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:05,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:05,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:05,966 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:06,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:06,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 20:49:06,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 20:49:06,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 20:49:06,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 20:49:06,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (1/1) ... [2023-04-02 20:49:06,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:49:06,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 20:49:06,559 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 20:49:06,578 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 20:49:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 20:49:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 20:49:06,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 20:49:06,595 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 20:49:06,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 20:49:06,597 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 20:49:06,598 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 20:49:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 20:49:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 20:49:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 20:49:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 20:49:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 20:49:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 20:49:06,599 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 20:49:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 20:49:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 20:49:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 20:49:06,600 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 20:49:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 20:49:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 20:49:06,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 20:49:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 20:49:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 20:49:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 20:49:06,601 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 20:49:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 20:49:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 20:49:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 20:49:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 20:49:06,602 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 20:49:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 20:49:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 20:49:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 20:49:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 20:49:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 20:49:06,603 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 20:49:06,604 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 20:49:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 20:49:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 20:49:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 20:49:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 20:49:06,605 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 20:49:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 20:49:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 20:49:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 20:49:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 20:49:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 20:49:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 20:49:06,606 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 20:49:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 20:49:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 20:49:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 20:49:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 20:49:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 20:49:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 20:49:06,607 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 20:49:06,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 20:49:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 20:49:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 20:49:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 20:49:06,770 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 20:49:06,773 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 20:49:38,572 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 20:49:39,576 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 20:49:39,576 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 20:49:39,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:49:39 BoogieIcfgContainer [2023-04-02 20:49:39,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 20:49:39,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 20:49:39,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 20:49:39,595 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 20:49:39,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:48:50" (1/3) ... [2023-04-02 20:49:39,596 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3c7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:49:39, skipping insertion in model container [2023-04-02 20:49:39,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:49:03" (2/3) ... [2023-04-02 20:49:39,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a3c7a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:49:39, skipping insertion in model container [2023-04-02 20:49:39,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:49:39" (3/3) ... [2023-04-02 20:49:39,598 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label04.c [2023-04-02 20:49:39,613 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 20:49:39,613 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 20:49:39,821 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 20:49:39,828 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;@32e649f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 20:49:39,828 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 20:49:39,863 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 20:49:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 20:49:40,642 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 20:49:40,649 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 20:49:40,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 20:49:40,655 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 20:49:40,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1298907392, now seen corresponding path program 1 times [2023-04-02 20:49:40,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 20:49:40,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143307017] [2023-04-02 20:49:40,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 20:49:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 20:49:43,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 20:52:37,020 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 20:52:37,021 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 20:52:37,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143307017] [2023-04-02 20:52:37,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143307017] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 20:52:37,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 20:52:37,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 20:52:37,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547668081] [2023-04-02 20:52:37,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 20:52:37,039 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 20:52:37,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 20:52:37,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 20:52:37,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 20:52:37,172 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)