/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 EqDomain -i ../sv-benchmarks/c/eca-rers2012/Problem07_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 09:43:56,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 09:43:56,312 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 09:43:56,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 09:43:56,342 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 09:43:56,344 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 09:43:56,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 09:43:56,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 09:43:56,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 09:43:56,352 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 09:43:56,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 09:43:56,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 09:43:56,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 09:43:56,357 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 09:43:56,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 09:43:56,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 09:43:56,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 09:43:56,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 09:43:56,361 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 09:43:56,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 09:43:56,365 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 09:43:56,366 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 09:43:56,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 09:43:56,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 09:43:56,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 09:43:56,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 09:43:56,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 09:43:56,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 09:43:56,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 09:43:56,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 09:43:56,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 09:43:56,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 09:43:56,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 09:43:56,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 09:43:56,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 09:43:56,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 09:43:56,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 09:43:56,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 09:43:56,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 09:43:56,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 09:43:56,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 09:43:56,380 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 [2023-04-01 09:43:56,404 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 09:43:56,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 09:43:56,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 09:43:56,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 09:43:56,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 09:43:56,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 09:43:56,405 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 09:43:56,405 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 09:43:56,405 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 09:43:56,405 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 09:43:56,406 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 09:43:56,406 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 09:43:56,406 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 09:43:56,406 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 09:43:56,406 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 09:43:56,406 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 09:43:56,406 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 09:43:56,407 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 09:43:56,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 09:43:56,407 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 09:43:56,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 09:43:56,407 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 09:43:56,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 09:43:56,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 09:43:56,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 09:43:56,408 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 09:43:56,408 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 09:43:56,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 09:43:56,408 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 09:43:56,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 09:43:56,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 09:43:56,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 09:43:56,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 09:43:56,408 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 09:43:56,409 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 09:43:56,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 09:43:56,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 09:43:56,409 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 09:43:56,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 09:43:56,409 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 09:43:56,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 09:43:56,409 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 09:43:56,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 09:43:56,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 09:43:56,572 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 09:43:56,573 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 09:43:56,573 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 09:43:56,574 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem07_label56.c [2023-04-01 09:43:57,701 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 09:43:58,880 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 09:43:58,881 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem07_label56.c [2023-04-01 09:43:58,983 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0991b3d9/3473709556754aa8be625cf4d5bafd6a/FLAGba311782b [2023-04-01 09:43:58,994 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0991b3d9/3473709556754aa8be625cf4d5bafd6a [2023-04-01 09:43:58,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 09:43:58,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 09:43:58,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 09:43:58,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 09:43:59,000 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 09:43:59,001 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:43:58" (1/1) ... [2023-04-01 09:43:59,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@723c75e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:43:59, skipping insertion in model container [2023-04-01 09:43:59,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 09:43:58" (1/1) ... [2023-04-01 09:43:59,006 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 09:43:59,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 09:44:06,093 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_label56.c[2773929,2773942] [2023-04-01 09:44:06,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 09:44:06,153 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 09:44:10,143 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_label56.c[2773929,2773942] [2023-04-01 09:44:10,150 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 09:44:10,823 INFO L208 MainTranslator]: Completed translation [2023-04-01 09:44:10,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10 WrapperNode [2023-04-01 09:44:10,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 09:44:10,824 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 09:44:10,824 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 09:44:10,824 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 09:44:10,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:10,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:11,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:11,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:13,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:13,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:13,776 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:13,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:14,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 09:44:14,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 09:44:14,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 09:44:14,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 09:44:14,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (1/1) ... [2023-04-01 09:44:14,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 09:44:14,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 09:44:14,309 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 09:44:14,312 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 09:44:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 09:44:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 09:44:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 09:44:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 09:44:14,331 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output9 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output10 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output11 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output12 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output13 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output14 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output15 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output16 [2023-04-01 09:44:14,332 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output17 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output18 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output19 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output20 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output21 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output22 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output23 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output24 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output25 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output26 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output27 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output28 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output29 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output30 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output31 [2023-04-01 09:44:14,333 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output32 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output33 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output34 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output35 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output36 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output37 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output38 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output39 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output40 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output41 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output42 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output43 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output44 [2023-04-01 09:44:14,334 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output45 [2023-04-01 09:44:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output46 [2023-04-01 09:44:14,335 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output9 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output10 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output11 [2023-04-01 09:44:14,335 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output12 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output13 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output14 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output15 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output16 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output17 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output18 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output19 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output20 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output21 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output22 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output23 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output24 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output25 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output26 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output27 [2023-04-01 09:44:14,336 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output28 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output29 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output30 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output31 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output32 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output33 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output34 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output35 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output36 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output37 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output38 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output39 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output40 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output41 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output42 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output43 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output44 [2023-04-01 09:44:14,337 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output45 [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output46 [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 09:44:14,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 09:44:14,553 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 09:44:14,555 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 09:44:42,088 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 09:44:42,954 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 09:44:42,955 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 09:44:42,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:44:42 BoogieIcfgContainer [2023-04-01 09:44:42,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 09:44:42,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 09:44:42,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 09:44:42,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 09:44:42,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 09:43:58" (1/3) ... [2023-04-01 09:44:42,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1bc784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:44:42, skipping insertion in model container [2023-04-01 09:44:42,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 09:44:10" (2/3) ... [2023-04-01 09:44:42,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a1bc784 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 09:44:42, skipping insertion in model container [2023-04-01 09:44:42,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 09:44:42" (3/3) ... [2023-04-01 09:44:42,983 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem07_label56.c [2023-04-01 09:44:42,997 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 09:44:42,997 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 09:44:43,150 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 09:44:43,156 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;@1ee4d085, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 09:44:43,156 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 09:44:43,184 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) [2023-04-01 09:44:43,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10182 [2023-04-01 09:44:43,784 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 09:44:43,789 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 [2023-04-01 09:44:43,796 INFO L85 PathProgramCache]: Analyzing trace with hash -742666127, now seen corresponding path program 1 times [2023-04-01 09:44:43,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 09:44:43,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221630947] [2023-04-01 09:44:43,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 09:44:43,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 09:44:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat