/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-rers2012/Problem07_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 17:48:47,294 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 17:48:47,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 17:48:47,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 17:48:47,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 17:48:47,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 17:48:47,341 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 17:48:47,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 17:48:47,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 17:48:47,350 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 17:48:47,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 17:48:47,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 17:48:47,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 17:48:47,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 17:48:47,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 17:48:47,361 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 17:48:47,362 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 17:48:47,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 17:48:47,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 17:48:47,369 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 17:48:47,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 17:48:47,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 17:48:47,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 17:48:47,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 17:48:47,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 17:48:47,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 17:48:47,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 17:48:47,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 17:48:47,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 17:48:47,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 17:48:47,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 17:48:47,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 17:48:47,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 17:48:47,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 17:48:47,387 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 17:48:47,387 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 17:48:47,388 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 17:48:47,388 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 17:48:47,388 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 17:48:47,389 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 17:48:47,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 17:48:47,391 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 17:48:47,418 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 17:48:47,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 17:48:47,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 17:48:47,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 17:48:47,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 17:48:47,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 17:48:47,420 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 17:48:47,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 17:48:47,420 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 17:48:47,420 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 17:48:47,421 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 17:48:47,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 17:48:47,421 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 17:48:47,421 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 17:48:47,422 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 17:48:47,422 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 17:48:47,422 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 17:48:47,422 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 17:48:47,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 17:48:47,423 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 17:48:47,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 17:48:47,424 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 17:48:47,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 17:48:47,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 17:48:47,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 17:48:47,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 17:48:47,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 17:48:47,425 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 17:48:47,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 17:48:47,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 17:48:47,425 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 17:48:47,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 17:48:47,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 17:48:47,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 17:48:47,425 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 17:48:47,624 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 17:48:47,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 17:48:47,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 17:48:47,651 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 17:48:47,651 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 17:48:47,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label15.c [2023-04-02 17:48:48,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 17:48:50,207 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 17:48:50,208 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label15.c [2023-04-02 17:48:50,321 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f02c5db8/785f27bdcfde4627bd187865acfb9925/FLAG6705412c0 [2023-04-02 17:48:50,333 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6f02c5db8/785f27bdcfde4627bd187865acfb9925 [2023-04-02 17:48:50,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 17:48:50,336 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 17:48:50,337 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 17:48:50,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 17:48:50,342 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 17:48:50,343 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:48:50" (1/1) ... [2023-04-02 17:48:50,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29cd63e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:48:50, skipping insertion in model container [2023-04-02 17:48:50,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:48:50" (1/1) ... [2023-04-02 17:48:50,350 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 17:48:51,070 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 17:48:58,560 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-rers2012/Problem07_label15.c[2770861,2770874] [2023-04-02 17:48:58,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 17:48:58,620 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 17:49:02,904 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-rers2012/Problem07_label15.c[2770861,2770874] [2023-04-02 17:49:02,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 17:49:04,051 INFO L208 MainTranslator]: Completed translation [2023-04-02 17:49:04,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04 WrapperNode [2023-04-02 17:49:04,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 17:49:04,066 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 17:49:04,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 17:49:04,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 17:49:04,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:04,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:05,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:05,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:06,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:07,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:07,368 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:07,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:08,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 17:49:08,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 17:49:08,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 17:49:08,169 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 17:49:08,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (1/1) ... [2023-04-02 17:49:08,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 17:49:08,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 17:49:08,204 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 17:49:08,217 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 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 17:49:08,243 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 17:49:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 17:49:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 17:49:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 17:49:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 17:49:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 17:49:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 17:49:08,244 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 17:49:08,245 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 17:49:08,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 17:49:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 17:49:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 17:49:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 17:49:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 17:49:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 17:49:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 17:49:08,247 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 17:49:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 17:49:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 17:49:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 17:49:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 17:49:08,248 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 17:49:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 17:49:08,249 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 17:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 17:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 17:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 17:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 17:49:08,249 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 17:49:08,250 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 17:49:08,251 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 17:49:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 17:49:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 17:49:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 17:49:08,252 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 17:49:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 17:49:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 17:49:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 17:49:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 17:49:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 17:49:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 17:49:08,253 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 17:49:08,254 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 17:49:08,255 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 17:49:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 17:49:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 17:49:08,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 17:49:08,381 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 17:49:08,384 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 17:49:40,214 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 17:49:41,235 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 17:49:41,236 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 17:49:41,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:49:41 BoogieIcfgContainer [2023-04-02 17:49:41,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 17:49:41,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 17:49:41,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 17:49:41,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 17:49:41,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:48:50" (1/3) ... [2023-04-02 17:49:41,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1fdcf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:49:41, skipping insertion in model container [2023-04-02 17:49:41,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:49:04" (2/3) ... [2023-04-02 17:49:41,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1fdcf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:49:41, skipping insertion in model container [2023-04-02 17:49:41,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:49:41" (3/3) ... [2023-04-02 17:49:41,256 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label15.c [2023-04-02 17:49:41,269 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 17:49:41,269 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 17:49:41,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 17:49:41,448 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;@78d98561, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 17:49:41,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 17:49:41,485 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 17:49:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 17:49:42,222 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 17:49:42,228 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 17:49:42,229 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 17:49:42,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 17:49:42,238 INFO L85 PathProgramCache]: Analyzing trace with hash -742688033, now seen corresponding path program 1 times [2023-04-02 17:49:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 17:49:42,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521818301] [2023-04-02 17:49:42,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 17:49:42,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 17:49:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 17:52:45,259 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 17:52:45,260 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 17:52:45,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521818301] [2023-04-02 17:52:45,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521818301] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 17:52:45,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 17:52:45,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 17:52:45,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664097369] [2023-04-02 17:52:45,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 17:52:45,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 17:52:45,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 17:52:45,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 17:52:45,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 17:52:45,389 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)