/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/eca-rers2012/Problem07_label27.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 21:26:09,619 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 21:26:09,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 21:26:09,652 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 21:26:09,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 21:26:09,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 21:26:09,654 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 21:26:09,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 21:26:09,657 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 21:26:09,658 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 21:26:09,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 21:26:09,659 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 21:26:09,659 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 21:26:09,660 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 21:26:09,661 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 21:26:09,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 21:26:09,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 21:26:09,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 21:26:09,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 21:26:09,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 21:26:09,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 21:26:09,668 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 21:26:09,669 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 21:26:09,670 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 21:26:09,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 21:26:09,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 21:26:09,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 21:26:09,681 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 21:26:09,686 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 21:26:09,711 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 21:26:09,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 21:26:09,712 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 21:26:09,712 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 21:26:09,713 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 21:26:09,713 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 21:26:09,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 21:26:09,714 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 21:26:09,714 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 21:26:09,714 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 21:26:09,715 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 21:26:09,715 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 21:26:09,715 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 21:26:09,715 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 21:26:09,715 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 21:26:09,715 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 21:26:09,716 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 21:26:09,716 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 21:26:09,716 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 21:26:09,716 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 21:26:09,716 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 21:26:09,716 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 21:26:09,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 21:26:09,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 21:26:09,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 21:26:09,717 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 21:26:09,717 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 21:26:09,717 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 21:26:09,717 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 21:26:09,717 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 21:26:09,718 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 21:26:09,718 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 21:26:09,718 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 21:26:09,718 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 21:26:09,718 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 21:26:09,718 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 21:26:09,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 21:26:09,965 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 21:26:09,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 21:26:09,968 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 21:26:09,968 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 21:26:09,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label27.c [2023-04-01 21:26:11,029 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 21:26:12,546 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 21:26:12,547 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label27.c [2023-04-01 21:26:12,674 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d64d8ac/14b01f66be1b4e79a494588dfd2fa989/FLAGdd7f69e05 [2023-04-01 21:26:12,685 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99d64d8ac/14b01f66be1b4e79a494588dfd2fa989 [2023-04-01 21:26:12,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 21:26:12,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 21:26:12,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 21:26:12,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 21:26:12,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 21:26:12,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:26:12" (1/1) ... [2023-04-01 21:26:12,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@269499d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:12, skipping insertion in model container [2023-04-01 21:26:12,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:26:12" (1/1) ... [2023-04-01 21:26:12,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 21:26:13,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 21:26:20,907 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_label27.c[2771714,2771727] [2023-04-01 21:26:20,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 21:26:20,969 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 21:26:25,445 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_label27.c[2771714,2771727] [2023-04-01 21:26:25,451 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 21:26:26,347 INFO L208 MainTranslator]: Completed translation [2023-04-01 21:26:26,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26 WrapperNode [2023-04-01 21:26:26,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 21:26:26,349 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 21:26:26,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 21:26:26,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 21:26:26,360 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:26,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:27,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:27,216 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:29,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:29,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:29,676 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:29,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:30,278 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 21:26:30,279 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 21:26:30,279 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 21:26:30,279 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 21:26:30,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (1/1) ... [2023-04-01 21:26:30,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 21:26:30,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 21:26:30,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 21:26:30,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 21:26:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 21:26:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 21:26:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 21:26:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 21:26:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-01 21:26:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-01 21:26:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-01 21:26:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-01 21:26:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-01 21:26:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 21:26:30,353 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-01 21:26:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-01 21:26:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-01 21:26:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-01 21:26:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-01 21:26:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 21:26:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 21:26:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 21:26:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 21:26:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 21:26:30,505 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 21:26:30,508 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 21:27:01,651 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 21:27:01,713 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 21:27:01,713 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 21:27:01,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:27:01 BoogieIcfgContainer [2023-04-01 21:27:01,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 21:27:01,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 21:27:01,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 21:27:01,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 21:27:01,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 09:26:12" (1/3) ... [2023-04-01 21:27:01,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b21852e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:27:01, skipping insertion in model container [2023-04-01 21:27:01,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:26:26" (2/3) ... [2023-04-01 21:27:01,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b21852e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:27:01, skipping insertion in model container [2023-04-01 21:27:01,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:27:01" (3/3) ... [2023-04-01 21:27:01,730 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label27.c [2023-04-01 21:27:01,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 21:27:01,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 21:27:01,922 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 21:27:01,927 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=PETRI_NET, 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;@607cb1dd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 21:27:01,928 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 21:27:01,960 INFO L276 IsEmpty]: Start isEmpty. Operand has 10446 states, 10348 states have (on average 1.9803826826439892) internal successors, (20493), 10349 states have internal predecessors, (20493), 48 states have call successors, (48), 48 states have call predecessors, (48), 48 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-04-01 21:27:02,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10212 [2023-04-01 21:27:02,827 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 21:27:02,832 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 21:27:02,835 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_output46Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 21:27:02,846 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 21:27:02,849 INFO L85 PathProgramCache]: Analyzing trace with hash -473309521, now seen corresponding path program 1 times [2023-04-01 21:27:02,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 21:27:02,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391712650] [2023-04-01 21:27:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 21:27:02,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 21:27:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:29:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 21:29:53,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 21:29:53,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 21:29:53,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 21:29:53,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391712650] [2023-04-01 21:29:53,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391712650] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 21:29:53,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 21:29:53,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 21:29:53,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184720639] [2023-04-01 21:29:53,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 21:29:53,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 21:29:53,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 21:29:54,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 21:29:54,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 21:29:54,062 INFO L87 Difference]: Start difference. First operand has 10446 states, 10348 states have (on average 1.9803826826439892) internal successors, (20493), 10349 states have internal predecessors, (20493), 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 5 states, 4 states have (on average 2540.5) internal successors, (10162), 3 states have internal predecessors, (10162), 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)