/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 EqDomain -i ../sv-benchmarks/c/eca-programs/Problem101_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 10:40:11,441 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 10:40:11,442 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 10:40:11,467 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 10:40:11,468 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 10:40:11,469 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 10:40:11,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 10:40:11,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 10:40:11,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 10:40:11,473 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 10:40:11,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 10:40:11,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 10:40:11,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 10:40:11,476 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 10:40:11,477 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 10:40:11,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 10:40:11,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 10:40:11,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 10:40:11,480 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 10:40:11,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 10:40:11,483 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 10:40:11,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 10:40:11,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 10:40:11,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 10:40:11,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 10:40:11,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 10:40:11,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 10:40:11,490 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 10:40:11,491 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 10:40:11,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 10:40:11,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 10:40:11,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 10:40:11,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 10:40:11,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 10:40:11,494 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 10:40:11,495 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 10:40:11,495 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 10:40:11,495 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 10:40:11,495 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 10:40:11,496 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 10:40:11,496 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 10:40:11,497 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 10:40:11,517 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 10:40:11,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 10:40:11,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 10:40:11,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 10:40:11,518 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 10:40:11,519 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 10:40:11,519 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 10:40:11,519 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 10:40:11,519 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 10:40:11,519 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 10:40:11,519 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 10:40:11,519 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 10:40:11,519 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 10:40:11,520 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 10:40:11,520 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 10:40:11,520 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 10:40:11,520 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 10:40:11,520 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 10:40:11,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 10:40:11,521 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 10:40:11,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 10:40:11,521 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 10:40:11,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 10:40:11,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 10:40:11,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 10:40:11,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 10:40:11,522 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 10:40:11,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 10:40:11,522 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 10:40:11,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 10:40:11,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 10:40:11,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 10:40:11,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:40:11,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 10:40:11,523 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 10:40:11,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 10:40:11,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 10:40:11,523 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 10:40:11,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 10:40:11,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 10:40:11,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 10:40:11,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 10:40:11,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 10:40:11,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 10:40:11,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 10:40:11,757 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 10:40:11,758 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 10:40:11,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label21.c [2023-04-01 10:40:12,870 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 10:40:14,429 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 10:40:14,430 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label21.c [2023-04-01 10:40:14,532 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46fa61da/8b36e01ccc9842e99c6bd2845c23bed2/FLAG69686c91e [2023-04-01 10:40:14,544 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b46fa61da/8b36e01ccc9842e99c6bd2845c23bed2 [2023-04-01 10:40:14,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 10:40:14,549 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 10:40:14,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 10:40:14,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 10:40:14,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 10:40:14,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:40:14" (1/1) ... [2023-04-01 10:40:14,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d311efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:14, skipping insertion in model container [2023-04-01 10:40:14,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:40:14" (1/1) ... [2023-04-01 10:40:14,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 10:40:15,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 10:40:22,849 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label21.c[2766627,2766640] [2023-04-01 10:40:22,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:40:22,913 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 10:40:27,133 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label21.c[2766627,2766640] [2023-04-01 10:40:27,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 10:40:28,040 INFO L208 MainTranslator]: Completed translation [2023-04-01 10:40:28,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28 WrapperNode [2023-04-01 10:40:28,041 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 10:40:28,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 10:40:28,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 10:40:28,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 10:40:28,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:28,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:28,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:28,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:29,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:30,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:30,181 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:30,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:30,788 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 10:40:30,789 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 10:40:30,789 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 10:40:30,789 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 10:40:30,790 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (1/1) ... [2023-04-01 10:40:30,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 10:40:30,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 10:40:31,024 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 10:40:31,025 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 10:40:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 10:40:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 10:40:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 10:40:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 10:40:31,063 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 10:40:31,064 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 10:40:31,064 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 10:40:31,064 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-01 10:40:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-01 10:40:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-01 10:40:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-01 10:40:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-01 10:40:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-01 10:40:31,067 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-01 10:40:31,068 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-01 10:40:31,069 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-01 10:40:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-01 10:40:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-01 10:40:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-01 10:40:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-01 10:40:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-01 10:40:31,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-01 10:40:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-01 10:40:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-01 10:40:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-01 10:40:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-01 10:40:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-01 10:40:31,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-01 10:40:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-01 10:40:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-01 10:40:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-01 10:40:31,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-01 10:40:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-01 10:40:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-01 10:40:31,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 10:40:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 10:40:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 10:40:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 10:40:31,073 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 10:40:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-01 10:40:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-01 10:40:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-01 10:40:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-01 10:40:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-01 10:40:31,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-01 10:40:31,075 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-01 10:40:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-01 10:40:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-01 10:40:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-01 10:40:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-01 10:40:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-01 10:40:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-01 10:40:31,076 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-01 10:40:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-01 10:40:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-01 10:40:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-01 10:40:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-01 10:40:31,077 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-01 10:40:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-01 10:40:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-01 10:40:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-01 10:40:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-01 10:40:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-01 10:40:31,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-01 10:40:31,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 10:40:31,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 10:40:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 10:40:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 10:40:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 10:40:31,255 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 10:40:31,257 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 10:41:03,671 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 10:41:04,754 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 10:41:04,755 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 10:41:04,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:41:04 BoogieIcfgContainer [2023-04-01 10:41:04,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 10:41:04,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 10:41:04,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 10:41:04,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 10:41:04,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:40:14" (1/3) ... [2023-04-01 10:41:04,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da96f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:41:04, skipping insertion in model container [2023-04-01 10:41:04,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:40:28" (2/3) ... [2023-04-01 10:41:04,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da96f01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:41:04, skipping insertion in model container [2023-04-01 10:41:04,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:41:04" (3/3) ... [2023-04-01 10:41:04,775 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label21.c [2023-04-01 10:41:04,790 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 10:41:04,790 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 10:41:04,993 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 10:41:04,999 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;@284783e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 10:41:04,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 10:41:05,034 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 10:41:05,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-01 10:41:05,882 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 10:41:05,887 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 10:41:05,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1298985615, now seen corresponding path program 1 times [2023-04-01 10:41:05,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 10:41:05,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781585969] [2023-04-01 10:41:05,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 10:41:05,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms