/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/eca-programs/Problem101_label23.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 20:53:24,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 20:53:24,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 20:53:24,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 20:53:24,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 20:53:24,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 20:53:24,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 20:53:24,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 20:53:24,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 20:53:24,253 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 20:53:24,255 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 20:53:24,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 20:53:24,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 20:53:24,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 20:53:24,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 20:53:24,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 20:53:24,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 20:53:24,263 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 20:53:24,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 20:53:24,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 20:53:24,269 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 20:53:24,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 20:53:24,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 20:53:24,272 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 20:53:24,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 20:53:24,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 20:53:24,279 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 20:53:24,280 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 20:53:24,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 20:53:24,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 20:53:24,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 20:53:24,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 20:53:24,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 20:53:24,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 20:53:24,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 20:53:24,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 20:53:24,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 20:53:24,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 20:53:24,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 20:53:24,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 20:53:24,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 20:53:24,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-04-02 20:53:24,303 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 20:53:24,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 20:53:24,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 20:53:24,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 20:53:24,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 20:53:24,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 20:53:24,304 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 20:53:24,304 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 20:53:24,304 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 20:53:24,304 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 20:53:24,304 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 20:53:24,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 20:53:24,305 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 20:53:24,305 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 20:53:24,305 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 20:53:24,305 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 20:53:24,305 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 20:53:24,305 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 20:53:24,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 20:53:24,305 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 20:53:24,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 20:53:24,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:53:24,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 20:53:24,307 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 20:53:24,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 20:53:24,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 20:53:24,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 20:53:24,502 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 20:53:24,503 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 20:53:24,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label23.c [2023-04-02 20:53:25,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 20:53:26,629 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 20:53:26,629 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label23.c [2023-04-02 20:53:26,738 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4755630/2a8676b4ea1c46ab868b6de3ab7c468a/FLAG31c740e4b [2023-04-02 20:53:26,748 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb4755630/2a8676b4ea1c46ab868b6de3ab7c468a [2023-04-02 20:53:26,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 20:53:26,750 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 20:53:26,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 20:53:26,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 20:53:26,753 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 20:53:26,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:53:26" (1/1) ... [2023-04-02 20:53:26,754 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76f56aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:26, skipping insertion in model container [2023-04-02 20:53:26,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:53:26" (1/1) ... [2023-04-02 20:53:26,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 20:53:27,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 20:53:34,574 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_label23.c[2766456,2766469] [2023-04-02 20:53:34,628 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:53:34,635 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 20:53:38,968 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_label23.c[2766456,2766469] [2023-04-02 20:53:38,978 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:53:39,773 INFO L208 MainTranslator]: Completed translation [2023-04-02 20:53:39,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39 WrapperNode [2023-04-02 20:53:39,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 20:53:39,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 20:53:39,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 20:53:39,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 20:53:39,789 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:39,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:40,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:40,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:42,038 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:42,406 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:42,601 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:42,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:43,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 20:53:43,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 20:53:43,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 20:53:43,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 20:53:43,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (1/1) ... [2023-04-02 20:53:43,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:53:43,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 20:53:43,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 20:53:43,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 20:53:43,142 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 20:53:43,143 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 20:53:43,144 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 20:53:43,145 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 20:53:43,146 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 20:53:43,146 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 20:53:43,156 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 20:53:43,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 20:53:43,157 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 20:53:43,158 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 20:53:43,159 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 20:53:43,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 20:53:43,282 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 20:53:43,289 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 20:54:12,750 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 20:54:13,783 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 20:54:13,784 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 20:54:13,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:54:13 BoogieIcfgContainer [2023-04-02 20:54:13,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 20:54:13,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 20:54:13,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 20:54:13,809 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 20:54:13,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:53:26" (1/3) ... [2023-04-02 20:54:13,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd50b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:54:13, skipping insertion in model container [2023-04-02 20:54:13,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:39" (2/3) ... [2023-04-02 20:54:13,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fd50b58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:54:13, skipping insertion in model container [2023-04-02 20:54:13,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:54:13" (3/3) ... [2023-04-02 20:54:13,824 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label23.c [2023-04-02 20:54:13,837 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 20:54:13,837 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 20:54:14,018 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 20:54:14,023 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;@52d9c6ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 20:54:14,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 20:54:14,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 10325 states, 10227 states have (on average 1.9860174049085753) internal successors, (20311), 10228 states have internal predecessors, (20311), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-04-02 20:54:14,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 20:54:14,916 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 20:54:14,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 20:54:14,923 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 20:54:14,930 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 20:54:14,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1327657306, now seen corresponding path program 1 times [2023-04-02 20:54:14,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 20:54:14,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498858057] [2023-04-02 20:54:14,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 20:54:14,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 20:54:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 20:57:34,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 20:57:34,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 20:57:34,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498858057] [2023-04-02 20:57:34,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498858057] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 20:57:34,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 20:57:34,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 20:57:34,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372999175] [2023-04-02 20:57:34,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 20:57:34,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 20:57:34,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 20:57:34,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 20:57:34,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 20:57:34,996 INFO L87 Difference]: Start difference. First operand has 10325 states, 10227 states have (on average 1.9860174049085753) internal successors, (20311), 10228 states have internal predecessors, (20311), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 3 states, 3 states have (on average 3377.3333333333335) internal successors, (10132), 2 states have internal predecessors, (10132), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)