/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 IntervalDomain -i ../sv-benchmarks/c/eca-rers2012/Problem07_label25.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 21:36:31,446 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 21:36:31,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 21:36:31,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 21:36:31,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 21:36:31,481 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 21:36:31,484 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 21:36:31,485 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 21:36:31,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 21:36:31,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 21:36:31,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 21:36:31,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 21:36:31,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 21:36:31,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 21:36:31,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 21:36:31,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 21:36:31,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 21:36:31,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 21:36:31,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 21:36:31,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 21:36:31,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 21:36:31,503 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 21:36:31,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 21:36:31,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 21:36:31,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 21:36:31,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 21:36:31,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 21:36:31,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 21:36:31,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 21:36:31,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 21:36:31,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 21:36:31,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 21:36:31,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 21:36:31,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 21:36:31,515 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 21:36:31,515 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 21:36:31,516 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 21:36:31,516 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 21:36:31,516 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 21:36:31,517 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 21:36:31,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 21:36:31,518 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 [2023-03-31 21:36:31,540 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 21:36:31,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 21:36:31,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 21:36:31,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 21:36:31,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 21:36:31,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 21:36:31,542 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 21:36:31,542 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 21:36:31,542 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 21:36:31,542 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 21:36:31,543 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 21:36:31,543 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 21:36:31,543 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 21:36:31,543 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 21:36:31,543 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 21:36:31,543 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 21:36:31,543 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 21:36:31,543 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 21:36:31,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 21:36:31,544 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 21:36:31,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 21:36:31,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 21:36:31,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 21:36:31,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 21:36:31,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 21:36:31,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 21:36:31,545 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 21:36:31,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 21:36:31,545 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 21:36:31,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 21:36:31,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:36:31,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 21:36:31,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 21:36:31,547 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 21:36:31,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 21:36:31,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 21:36:31,831 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 21:36:31,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 21:36:31,833 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 21:36:31,833 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 21:36:31,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label25.c [2023-03-31 21:36:32,764 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 21:36:34,038 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 21:36:34,039 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label25.c [2023-03-31 21:36:34,198 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/def14141a/b4abbb22903f49c5aea2cd149d37bd1a/FLAGeccca5290 [2023-03-31 21:36:34,208 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/def14141a/b4abbb22903f49c5aea2cd149d37bd1a [2023-03-31 21:36:34,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 21:36:34,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 21:36:34,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 21:36:34,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 21:36:34,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 21:36:34,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:36:34" (1/1) ... [2023-03-31 21:36:34,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3c5b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:34, skipping insertion in model container [2023-03-31 21:36:34,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 09:36:34" (1/1) ... [2023-03-31 21:36:34,219 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 21:36:34,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 21:36:41,535 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_label25.c[2775977,2775990] [2023-03-31 21:36:41,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:36:41,583 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 21:36:45,443 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_label25.c[2775977,2775990] [2023-03-31 21:36:45,446 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 21:36:46,242 INFO L208 MainTranslator]: Completed translation [2023-03-31 21:36:46,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46 WrapperNode [2023-03-31 21:36:46,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 21:36:46,249 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 21:36:46,249 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 21:36:46,249 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 21:36:46,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:46,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:46,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:46,856 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:47,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:48,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:48,200 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:48,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:48,750 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 21:36:48,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 21:36:48,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 21:36:48,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 21:36:48,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (1/1) ... [2023-03-31 21:36:48,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 21:36:48,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 21:36:48,788 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) [2023-03-31 21:36:48,790 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 [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-03-31 21:36:48,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-03-31 21:36:48,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-03-31 21:36:48,829 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-03-31 21:36:48,830 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-03-31 21:36:48,830 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-03-31 21:36:48,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-03-31 21:36:48,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 21:36:48,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 21:36:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 21:36:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 21:36:48,834 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 21:36:48,934 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 21:36:48,936 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 21:37:17,734 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 21:37:18,634 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 21:37:18,634 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 21:37:18,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:37:18 BoogieIcfgContainer [2023-03-31 21:37:18,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 21:37:18,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 21:37:18,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 21:37:18,645 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 21:37:18,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 09:36:34" (1/3) ... [2023-03-31 21:37:18,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d2a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:37:18, skipping insertion in model container [2023-03-31 21:37:18,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 09:36:46" (2/3) ... [2023-03-31 21:37:18,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35d2a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 09:37:18, skipping insertion in model container [2023-03-31 21:37:18,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 09:37:18" (3/3) ... [2023-03-31 21:37:18,647 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label25.c [2023-03-31 21:37:18,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 21:37:18,657 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 21:37:18,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 21:37:18,792 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;@1eb3e589, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 21:37:18,792 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 21:37:18,816 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) [2023-03-31 21:37:19,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-03-31 21:37:19,675 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 21:37:19,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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Initialized classic predicate unifier [2023-03-31 21:37:19,686 INFO L85 PathProgramCache]: Analyzing trace with hash -742660172, now seen corresponding path program 1 times [2023-03-31 21:37:19,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 21:37:19,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100057837] [2023-03-31 21:37:19,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 21:37:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 21:37:21,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat