/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_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 20:52:47,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 20:52:47,532 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 20:52:47,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 20:52:47,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 20:52:47,567 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 20:52:47,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 20:52:47,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 20:52:47,575 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 20:52:47,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 20:52:47,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 20:52:47,584 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 20:52:47,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 20:52:47,589 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 20:52:47,590 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 20:52:47,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 20:52:47,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 20:52:47,592 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 20:52:47,594 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 20:52:47,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 20:52:47,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 20:52:47,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 20:52:47,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 20:52:47,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 20:52:47,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 20:52:47,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 20:52:47,608 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 20:52:47,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 20:52:47,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 20:52:47,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 20:52:47,611 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 20:52:47,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 20:52:47,613 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 20:52:47,614 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 20:52:47,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 20:52:47,615 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 20:52:47,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 20:52:47,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 20:52:47,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 20:52:47,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 20:52:47,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 20:52:47,618 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 20:52:47,652 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 20:52:47,652 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 20:52:47,653 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 20:52:47,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 20:52:47,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 20:52:47,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 20:52:47,654 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 20:52:47,654 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 20:52:47,654 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 20:52:47,654 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 20:52:47,655 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 20:52:47,655 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 20:52:47,655 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 20:52:47,655 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 20:52:47,655 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 20:52:47,655 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 20:52:47,656 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 20:52:47,656 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 20:52:47,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 20:52:47,657 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 20:52:47,658 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 20:52:47,658 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 20:52:47,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 20:52:47,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 20:52:47,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 20:52:47,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:52:47,658 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 20:52:47,659 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 20:52:47,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 20:52:47,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 20:52:47,659 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 20:52:47,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 20:52:47,659 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 20:52:47,659 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 20:52:47,659 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 20:52:47,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 20:52:47,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 20:52:47,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 20:52:47,884 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 20:52:47,885 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 20:52:47,886 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-programs/Problem101_label17.c [2023-04-02 20:52:49,031 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 20:52:50,578 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 20:52:50,579 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-programs/Problem101_label17.c [2023-04-02 20:52:50,677 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf7938f48/b93a1f00ddbf4bbdab3f6d84899df84f/FLAG3d98b8382 [2023-04-02 20:52:50,689 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf7938f48/b93a1f00ddbf4bbdab3f6d84899df84f [2023-04-02 20:52:50,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 20:52:50,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 20:52:50,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 20:52:50,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 20:52:50,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 20:52:50,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:52:50" (1/1) ... [2023-04-02 20:52:50,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63b245be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:52:50, skipping insertion in model container [2023-04-02 20:52:50,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 08:52:50" (1/1) ... [2023-04-02 20:52:50,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 20:52:51,487 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 20:52:58,789 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_label17.c[2767650,2767663] [2023-04-02 20:52:58,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:52:58,859 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 20:53:03,174 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_label17.c[2767650,2767663] [2023-04-02 20:53:03,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 20:53:04,188 INFO L208 MainTranslator]: Completed translation [2023-04-02 20:53:04,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04 WrapperNode [2023-04-02 20:53:04,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 20:53:04,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 20:53:04,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 20:53:04,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 20:53:04,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:04,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:05,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:05,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:06,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:06,523 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:06,694 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:06,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:07,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 20:53:07,426 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 20:53:07,426 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 20:53:07,426 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 20:53:07,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (1/1) ... [2023-04-02 20:53:07,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 20:53:07,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 20:53:07,459 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 20:53:07,464 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 20:53:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 20:53:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 20:53:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 20:53:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 20:53:07,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 20:53:07,501 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 20:53:07,502 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 20:53:07,503 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 20:53:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 20:53:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 20:53:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 20:53:07,504 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 20:53:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 20:53:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 20:53:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 20:53:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 20:53:07,505 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 20:53:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 20:53:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 20:53:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 20:53:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 20:53:07,506 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 20:53:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 20:53:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 20:53:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 20:53:07,506 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 20:53:07,507 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 20:53:07,508 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 20:53:07,509 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 20:53:07,510 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 20:53:07,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 20:53:07,829 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 20:53:07,831 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 20:53:40,295 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 20:53:41,346 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 20:53:41,347 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 20:53:41,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:53:41 BoogieIcfgContainer [2023-04-02 20:53:41,359 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 20:53:41,360 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 20:53:41,360 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 20:53:41,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 20:53:41,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 08:52:50" (1/3) ... [2023-04-02 20:53:41,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab31bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:53:41, skipping insertion in model container [2023-04-02 20:53:41,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 08:53:04" (2/3) ... [2023-04-02 20:53:41,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab31bcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 08:53:41, skipping insertion in model container [2023-04-02 20:53:41,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 08:53:41" (3/3) ... [2023-04-02 20:53:41,365 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem101_label17.c [2023-04-02 20:53:41,378 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 20:53:41,378 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 20:53:41,571 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 20:53:41,578 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;@6b0649b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 20:53:41,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 20:53:41,618 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 20:53:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 20:53:42,330 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 20:53:42,336 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 20:53:42,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 20:53:42,342 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 20:53:42,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1298908160, now seen corresponding path program 1 times [2023-04-02 20:53:42,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 20:53:42,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495375379] [2023-04-02 20:53:42,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 20:53:42,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 20:53:45,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 20:56:34,422 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 20:56:34,423 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 20:56:34,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495375379] [2023-04-02 20:56:34,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495375379] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 20:56:34,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 20:56:34,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 20:56:34,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323306263] [2023-04-02 20:56:34,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 20:56:34,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 20:56:34,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 20:56:34,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 20:56:34,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 20:56:34,584 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)