/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_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 03:38:14,368 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 03:38:14,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 03:38:14,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 03:38:14,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 03:38:14,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 03:38:14,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 03:38:14,394 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 03:38:14,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 03:38:14,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 03:38:14,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 03:38:14,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 03:38:14,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 03:38:14,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 03:38:14,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 03:38:14,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 03:38:14,402 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 03:38:14,403 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 03:38:14,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 03:38:14,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 03:38:14,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 03:38:14,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 03:38:14,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 03:38:14,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 03:38:14,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 03:38:14,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 03:38:14,419 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 03:38:14,419 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 03:38:14,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 03:38:14,420 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 03:38:14,420 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 03:38:14,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 03:38:14,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 03:38:14,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 03:38:14,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 03:38:14,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 03:38:14,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 03:38:14,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 03:38:14,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 03:38:14,423 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 03:38:14,424 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 03:38:14,429 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 [2023-04-01 03:38:14,449 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 03:38:14,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 03:38:14,449 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 03:38:14,449 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 03:38:14,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 03:38:14,450 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 03:38:14,450 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 03:38:14,450 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 03:38:14,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 03:38:14,451 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 03:38:14,452 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 03:38:14,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 03:38:14,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 03:38:14,453 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 03:38:14,453 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 03:38:14,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 03:38:14,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 03:38:14,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 03:38:14,453 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 03:38:14,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 03:38:14,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 03:38:14,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 03:38:14,667 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 03:38:14,668 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 03:38:14,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label16.c [2023-04-01 03:38:15,573 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 03:38:16,847 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 03:38:16,848 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label16.c [2023-04-01 03:38:16,952 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8297cd1c/c33ff33d340449c090c03b728dae8be2/FLAGa957fcb5d [2023-04-01 03:38:17,205 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8297cd1c/c33ff33d340449c090c03b728dae8be2 [2023-04-01 03:38:17,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 03:38:17,208 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 03:38:17,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 03:38:17,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 03:38:17,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 03:38:17,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 03:38:17" (1/1) ... [2023-04-01 03:38:17,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d46114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:17, skipping insertion in model container [2023-04-01 03:38:17,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 03:38:17" (1/1) ... [2023-04-01 03:38:17,220 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 03:38:17,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 03:38:24,548 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_label16.c[2775464,2775477] [2023-04-01 03:38:24,603 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 03:38:24,611 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 03:38:28,906 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_label16.c[2775464,2775477] [2023-04-01 03:38:28,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 03:38:29,675 INFO L208 MainTranslator]: Completed translation [2023-04-01 03:38:29,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29 WrapperNode [2023-04-01 03:38:29,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 03:38:29,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 03:38:29,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 03:38:29,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 03:38:29,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:29,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:30,352 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:30,353 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:31,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:32,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:32,256 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:32,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:32,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 03:38:32,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 03:38:32,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 03:38:32,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 03:38:32,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (1/1) ... [2023-04-01 03:38:32,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 03:38:32,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 03:38:32,885 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) [2023-04-01 03:38:32,888 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 [2023-04-01 03:38:32,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-01 03:38:32,908 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-01 03:38:32,909 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-01 03:38:32,910 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-01 03:38:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-01 03:38:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-01 03:38:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-01 03:38:32,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-01 03:38:32,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-01 03:38:32,912 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-01 03:38:32,913 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 03:38:32,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 03:38:33,064 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 03:38:33,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 03:39:02,658 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 03:39:03,508 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 03:39:03,508 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 03:39:03,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 03:39:03 BoogieIcfgContainer [2023-04-01 03:39:03,517 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 03:39:03,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 03:39:03,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 03:39:03,523 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 03:39:03,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 03:38:17" (1/3) ... [2023-04-01 03:39:03,524 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e7805d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 03:39:03, skipping insertion in model container [2023-04-01 03:39:03,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 03:38:29" (2/3) ... [2023-04-01 03:39:03,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e7805d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 03:39:03, skipping insertion in model container [2023-04-01 03:39:03,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 03:39:03" (3/3) ... [2023-04-01 03:39:03,533 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label16.c [2023-04-01 03:39:03,544 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 03:39:03,544 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 03:39:03,683 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 03:39:03,687 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;@6b4fcf97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 03:39:03,687 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 03:39:03,715 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) [2023-04-01 03:39:04,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-01 03:39:04,487 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 03:39:04,491 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Initialized classic predicate unifier [2023-04-01 03:39:04,504 INFO L85 PathProgramCache]: Analyzing trace with hash -742660940, now seen corresponding path program 1 times [2023-04-01 03:39:04,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 03:39:04,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107049090] [2023-04-01 03:39:04,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 03:39:04,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 03:39:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat