/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 IntervalDomain -i ../sv-benchmarks/c/eca-rers2012/Problem07_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 21:38:24,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 21:38:24,187 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 21:38:24,206 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 21:38:24,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 21:38:24,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 21:38:24,208 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 21:38:24,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 21:38:24,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 21:38:24,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 21:38:24,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 21:38:24,220 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 21:38:24,220 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 21:38:24,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 21:38:24,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 21:38:24,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 21:38:24,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 21:38:24,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 21:38:24,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 21:38:24,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 21:38:24,233 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 21:38:24,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 21:38:24,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 21:38:24,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 21:38:24,238 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 21:38:24,239 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 21:38:24,239 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 21:38:24,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 21:38:24,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 21:38:24,240 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 21:38:24,240 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 21:38:24,241 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 21:38:24,241 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 21:38:24,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 21:38:24,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 21:38:24,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 21:38:24,243 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 21:38:24,243 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 21:38:24,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 21:38:24,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 21:38:24,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 21:38:24,245 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 [2023-03-31 21:38:24,269 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 21:38:24,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 21:38:24,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 21:38:24,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 21:38:24,271 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 21:38:24,271 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 21:38:24,271 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 21:38:24,271 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 21:38:24,271 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 21:38:24,271 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 21:38:24,272 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 21:38:24,272 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 21:38:24,272 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 21:38:24,272 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 21:38:24,272 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 21:38:24,272 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 21:38:24,272 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 21:38:24,272 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 21:38:24,273 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 21:38:24,273 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 21:38:24,274 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:38:24,274 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 21:38:24,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 21:38:24,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 21:38:24,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 21:38:24,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 21:38:24,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 21:38:24,467 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 21:38:24,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 21:38:24,469 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 21:38:24,469 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 21:38:24,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label49.c [2023-03-31 21:38:25,397 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 21:38:26,424 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 21:38:26,424 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label49.c [2023-03-31 21:38:26,537 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73b8a57a/afa3f1bfff174e7380757996283780a9/FLAG2a872e6c7 [2023-03-31 21:38:26,547 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d73b8a57a/afa3f1bfff174e7380757996283780a9 [2023-03-31 21:38:26,548 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 21:38:26,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 21:38:26,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 21:38:26,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 21:38:26,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 21:38:26,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:38:26" (1/1) ... [2023-03-31 21:38:26,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@461a008d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:26, skipping insertion in model container [2023-03-31 21:38:26,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:38:26" (1/1) ... [2023-03-31 21:38:26,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 21:38:27,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 21:38:33,616 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_label49.c[2771201,2771214] [2023-03-31 21:38:33,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:38:33,667 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 21:38:37,840 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_label49.c[2771201,2771214] [2023-03-31 21:38:37,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:38:38,636 INFO L208 MainTranslator]: Completed translation [2023-03-31 21:38:38,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38 WrapperNode [2023-03-31 21:38:38,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 21:38:38,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 21:38:38,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 21:38:38,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 21:38:38,656 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:38,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:39,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:39,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:40,603 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:40,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:41,059 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:41,138 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:41,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 21:38:41,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 21:38:41,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 21:38:41,619 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 21:38:41,619 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (1/1) ... [2023-03-31 21:38:41,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:38:41,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 21:38:41,706 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) [2023-03-31 21:38:41,711 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 [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-03-31 21:38:41,737 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-03-31 21:38:41,738 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-03-31 21:38:41,739 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-03-31 21:38:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-03-31 21:38:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-03-31 21:38:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-03-31 21:38:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-03-31 21:38:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-03-31 21:38:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-03-31 21:38:41,740 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-03-31 21:38:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-03-31 21:38:41,742 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-03-31 21:38:41,742 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-03-31 21:38:41,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-03-31 21:38:41,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 21:38:41,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 21:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 21:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 21:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 21:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 21:38:41,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 21:38:41,848 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 21:38:41,849 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 21:39:10,348 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 21:39:11,173 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 21:39:11,174 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 21:39:11,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:39:11 BoogieIcfgContainer [2023-03-31 21:39:11,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 21:39:11,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 21:39:11,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 21:39:11,185 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 21:39:11,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 09:38:26" (1/3) ... [2023-03-31 21:39:11,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e6772d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:39:11, skipping insertion in model container [2023-03-31 21:39:11,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:38:38" (2/3) ... [2023-03-31 21:39:11,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62e6772d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:39:11, skipping insertion in model container [2023-03-31 21:39:11,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:39:11" (3/3) ... [2023-03-31 21:39:11,191 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label49.c [2023-03-31 21:39:11,202 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 21:39:11,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 21:39:11,345 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 21:39:11,350 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;@eb0a216, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 21:39:11,351 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 21:39:11,380 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) [2023-03-31 21:39:12,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-03-31 21:39:12,132 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 21:39:12,137 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Initialized classic predicate unifier [2023-03-31 21:39:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash 536055936, now seen corresponding path program 1 times [2023-03-31 21:39:12,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 21:39:12,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049585360] [2023-03-31 21:39:12,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 21:39:12,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 21:39:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat