/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain OctagonDomain -i ../sv-benchmarks/c/eca-rers2012/Problem07_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 17:44:54,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 17:44:54,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 17:44:54,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-02 17:44:54,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-02 17:44:54,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-02 17:44:54,422 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-02 17:44:54,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-02 17:44:54,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-02 17:44:54,424 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-02 17:44:54,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-02 17:44:54,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-02 17:44:54,426 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-02 17:44:54,426 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-02 17:44:54,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-02 17:44:54,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-02 17:44:54,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-02 17:44:54,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-02 17:44:54,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-02 17:44:54,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-02 17:44:54,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-02 17:44:54,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-02 17:44:54,438 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-02 17:44:54,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-02 17:44:54,443 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-02 17:44:54,443 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-02 17:44:54,443 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-02 17:44:54,444 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-02 17:44:54,444 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-02 17:44:54,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-02 17:44:54,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-02 17:44:54,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-02 17:44:54,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-02 17:44:54,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-02 17:44:54,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-02 17:44:54,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-02 17:44:54,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-02 17:44:54,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-02 17:44:54,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-02 17:44:54,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-02 17:44:54,448 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-02 17:44:54,451 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 17:44:54,475 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 17:44:54,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 17:44:54,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 17:44:54,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 17:44:54,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 17:44:54,476 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 17:44:54,477 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-02 17:44:54,477 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-02 17:44:54,477 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-02 17:44:54,477 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-02 17:44:54,477 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-02 17:44:54,477 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-02 17:44:54,477 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-02 17:44:54,478 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-02 17:44:54,478 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-02 17:44:54,478 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-02 17:44:54,478 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-02 17:44:54,478 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-02 17:44:54,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 17:44:54,479 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 17:44:54,479 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 17:44:54,479 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 17:44:54,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 17:44:54,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 17:44:54,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 17:44:54,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 17:44:54,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-02 17:44:54,481 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-02 17:44:54,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 17:44:54,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 17:44:54,686 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 17:44:54,687 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 17:44:54,687 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 17:44:54,688 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label03.c [2023-04-02 17:44:55,653 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 17:44:56,846 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 17:44:56,847 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label03.c [2023-04-02 17:44:56,974 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b978817d/b672b8a9920b4c139c09e2abba65a354/FLAGbcdcbf796 [2023-04-02 17:44:56,984 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b978817d/b672b8a9920b4c139c09e2abba65a354 [2023-04-02 17:44:56,986 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 17:44:56,987 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 17:44:56,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 17:44:56,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 17:44:56,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 17:44:56,991 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:44:56" (1/1) ... [2023-04-02 17:44:56,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b5888eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:44:56, skipping insertion in model container [2023-04-02 17:44:56,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 05:44:56" (1/1) ... [2023-04-02 17:44:56,996 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 17:44:57,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 17:45:04,245 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label03.c[2770520,2770533] [2023-04-02 17:45:04,295 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 17:45:04,303 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 17:45:08,277 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label03.c[2770520,2770533] [2023-04-02 17:45:08,284 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 17:45:09,031 INFO L208 MainTranslator]: Completed translation [2023-04-02 17:45:09,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09 WrapperNode [2023-04-02 17:45:09,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 17:45:09,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 17:45:09,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 17:45:09,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 17:45:09,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:09,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:09,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:09,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:10,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:10,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:11,067 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:11,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:11,560 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 17:45:11,560 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 17:45:11,561 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 17:45:11,561 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 17:45:11,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (1/1) ... [2023-04-02 17:45:11,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 17:45:11,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 17:45:11,587 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 17:45:11,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 17:45:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 17:45:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 17:45:11,618 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-02 17:45:11,619 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-02 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-02 17:45:11,605 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 17:45:11,620 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-02 17:45:11,621 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-02 17:45:11,622 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-02 17:45:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-02 17:45:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-02 17:45:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-02 17:45:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-02 17:45:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-02 17:45:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-02 17:45:11,623 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-02 17:45:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-02 17:45:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-02 17:45:11,624 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 17:45:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-02 17:45:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-02 17:45:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-02 17:45:11,624 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-02 17:45:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-02 17:45:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-02 17:45:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-02 17:45:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-02 17:45:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-02 17:45:11,625 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-02 17:45:11,626 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-02 17:45:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-02 17:45:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-02 17:45:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-02 17:45:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-02 17:45:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-02 17:45:11,627 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-02 17:45:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-02 17:45:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-02 17:45:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-02 17:45:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-02 17:45:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-02 17:45:11,628 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 17:45:11,629 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 17:45:11,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 17:45:11,749 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 17:45:11,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 17:45:40,459 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 17:45:41,259 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 17:45:41,259 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-02 17:45:41,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:45:41 BoogieIcfgContainer [2023-04-02 17:45:41,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 17:45:41,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 17:45:41,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 17:45:41,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 17:45:41,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 05:44:56" (1/3) ... [2023-04-02 17:45:41,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c62d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:45:41, skipping insertion in model container [2023-04-02 17:45:41,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 05:45:09" (2/3) ... [2023-04-02 17:45:41,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@374c62d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 05:45:41, skipping insertion in model container [2023-04-02 17:45:41,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 05:45:41" (3/3) ... [2023-04-02 17:45:41,286 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label03.c [2023-04-02 17:45:41,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 17:45:41,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 17:45:41,443 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 17:45:41,448 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;@521973a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-02 17:45:41,449 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 17:45:41,481 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 17:45:42,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-02 17:45:42,139 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 17:45:42,145 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 17:45:42,147 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 17:45:42,150 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 17:45:42,154 INFO L85 PathProgramCache]: Analyzing trace with hash 536054912, now seen corresponding path program 1 times [2023-04-02 17:45:42,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-02 17:45:42,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34503879] [2023-04-02 17:45:42,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 17:45:42,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 17:45:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 17:48:30,031 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 17:48:30,032 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-02 17:48:30,032 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34503879] [2023-04-02 17:48:30,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34503879] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 17:48:30,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 17:48:30,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-02 17:48:30,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051844861] [2023-04-02 17:48:30,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 17:48:30,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-02 17:48:30,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-02 17:48:30,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-02 17:48:30,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-04-02 17:48:30,181 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)