/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/xcsp/Dubois-018.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 09:25:15,451 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 09:25:15,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 09:25:15,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 09:25:15,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 09:25:15,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 09:25:15,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 09:25:15,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 09:25:15,500 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 09:25:15,501 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 09:25:15,502 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 09:25:15,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 09:25:15,505 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 09:25:15,506 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 09:25:15,507 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 09:25:15,509 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 09:25:15,510 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 09:25:15,525 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 09:25:15,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 09:25:15,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 09:25:15,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 09:25:15,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 09:25:15,540 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 09:25:15,541 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 09:25:15,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 09:25:15,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 09:25:15,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 09:25:15,550 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 09:25:15,551 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 09:25:15,552 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 09:25:15,553 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 09:25:15,554 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 09:25:15,554 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 09:25:15,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 09:25:15,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 09:25:15,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 09:25:15,557 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 09:25:15,591 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 09:25:15,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 09:25:15,592 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 09:25:15,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 09:25:15,594 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 09:25:15,595 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 09:25:15,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 09:25:15,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 09:25:15,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 09:25:15,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 09:25:15,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 09:25:15,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 09:25:15,597 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 09:25:15,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 09:25:15,598 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 09:25:15,598 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 09:25:15,598 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 09:25:15,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 09:25:15,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 09:25:15,599 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 09:25:15,599 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 09:25:15,599 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 09:25:15,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 09:25:15,600 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 09:25:15,600 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 09:25:15,600 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 09:25:16,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 09:25:16,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 09:25:16,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 09:25:16,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 09:25:16,046 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 09:25:16,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-018.c [2020-12-22 09:25:16,147 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff7d83a0a/b6e9ded6c01048f2b2072cf186d9aa9c/FLAG7a1ab11fe [2020-12-22 09:25:16,898 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 09:25:16,898 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-018.c [2020-12-22 09:25:16,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff7d83a0a/b6e9ded6c01048f2b2072cf186d9aa9c/FLAG7a1ab11fe [2020-12-22 09:25:17,197 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff7d83a0a/b6e9ded6c01048f2b2072cf186d9aa9c [2020-12-22 09:25:17,200 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 09:25:17,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 09:25:17,204 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 09:25:17,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 09:25:17,209 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 09:25:17,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:17,212 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446f9038 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17, skipping insertion in model container [2020-12-22 09:25:17,212 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:17,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 09:25:17,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 09:25:17,633 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-018.c[13032,13045] [2020-12-22 09:25:17,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 09:25:17,665 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 09:25:17,747 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-018.c[13032,13045] [2020-12-22 09:25:17,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 09:25:17,768 INFO L208 MainTranslator]: Completed translation [2020-12-22 09:25:17,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17 WrapperNode [2020-12-22 09:25:17,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 09:25:17,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 09:25:17,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 09:25:17,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 09:25:17,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:17,803 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:17,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 09:25:17,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 09:25:17,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 09:25:17,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 09:25:17,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:17,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:17,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:17,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:18,008 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:18,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:18,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... [2020-12-22 09:25:18,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 09:25:18,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 09:25:18,040 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 09:25:18,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 09:25:18,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 09:25:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 09:25:18,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 09:25:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 09:25:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 09:25:19,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 09:25:19,239 INFO L299 CfgBuilder]: Removed 292 assume(true) statements. [2020-12-22 09:25:19,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:25:19 BoogieIcfgContainer [2020-12-22 09:25:19,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 09:25:19,245 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 09:25:19,245 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 09:25:19,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 09:25:19,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 09:25:17" (1/3) ... [2020-12-22 09:25:19,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bdb888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:25:19, skipping insertion in model container [2020-12-22 09:25:19,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 09:25:17" (2/3) ... [2020-12-22 09:25:19,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30bdb888 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 09:25:19, skipping insertion in model container [2020-12-22 09:25:19,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:25:19" (3/3) ... [2020-12-22 09:25:19,254 INFO L111 eAbstractionObserver]: Analyzing ICFG Dubois-018.c [2020-12-22 09:25:19,264 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 09:25:19,271 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 09:25:19,296 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 09:25:19,332 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 09:25:19,332 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 09:25:19,332 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 09:25:19,333 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 09:25:19,333 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 09:25:19,333 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 09:25:19,333 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 09:25:19,333 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 09:25:19,375 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-12-22 09:25:19,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-12-22 09:25:19,415 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:25:19,417 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:25:19,417 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:25:19,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:25:19,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1875952095, now seen corresponding path program 1 times [2020-12-22 09:25:19,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:25:19,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963892565] [2020-12-22 09:25:19,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:25:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 09:25:20,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 09:25:20,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963892565] [2020-12-22 09:25:20,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 09:25:20,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 09:25:20,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830633853] [2020-12-22 09:25:20,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 09:25:20,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 09:25:20,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 09:25:20,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 09:25:20,173 INFO L87 Difference]: Start difference. First operand 294 states. Second operand 2 states. [2020-12-22 09:25:20,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 09:25:20,251 INFO L93 Difference]: Finished difference Result 582 states and 868 transitions. [2020-12-22 09:25:20,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 09:25:20,253 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 290 [2020-12-22 09:25:20,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 09:25:20,283 INFO L225 Difference]: With dead ends: 582 [2020-12-22 09:25:20,284 INFO L226 Difference]: Without dead ends: 291 [2020-12-22 09:25:20,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 09:25:20,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-12-22 09:25:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2020-12-22 09:25:20,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 291 states. [2020-12-22 09:25:20,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 290 transitions. [2020-12-22 09:25:20,392 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 290 transitions. Word has length 290 [2020-12-22 09:25:20,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 09:25:20,394 INFO L481 AbstractCegarLoop]: Abstraction has 291 states and 290 transitions. [2020-12-22 09:25:20,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 09:25:20,394 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 290 transitions. [2020-12-22 09:25:20,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-12-22 09:25:20,411 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 09:25:20,412 INFO L422 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 09:25:20,413 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 09:25:20,414 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 09:25:20,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 09:25:20,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1559598109, now seen corresponding path program 1 times [2020-12-22 09:25:20,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 09:25:20,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657511117] [2020-12-22 09:25:20,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 09:25:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 09:25:21,062 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 09:25:21,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 09:25:21,488 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 09:25:21,670 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 09:25:21,670 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 09:25:21,672 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 09:25:21,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 09:25:21 BoogieIcfgContainer [2020-12-22 09:25:21,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 09:25:21,850 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 09:25:21,850 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 09:25:21,851 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 09:25:21,851 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 09:25:19" (3/4) ... [2020-12-22 09:25:21,855 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-22 09:25:21,855 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 09:25:21,858 INFO L168 Benchmark]: Toolchain (without parser) took 4655.22 ms. Allocated memory was 152.0 MB in the beginning and 192.9 MB in the end (delta: 40.9 MB). Free memory was 127.2 MB in the beginning and 110.7 MB in the end (delta: 16.5 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. [2020-12-22 09:25:21,859 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 09:25:21,860 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.17 ms. Allocated memory is still 152.0 MB. Free memory was 127.0 MB in the beginning and 102.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-12-22 09:25:21,861 INFO L168 Benchmark]: Boogie Procedure Inliner took 184.68 ms. Allocated memory is still 152.0 MB. Free memory was 102.4 MB in the beginning and 130.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. [2020-12-22 09:25:21,861 INFO L168 Benchmark]: Boogie Preprocessor took 83.41 ms. Allocated memory is still 152.0 MB. Free memory was 130.1 MB in the beginning and 124.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-12-22 09:25:21,862 INFO L168 Benchmark]: RCFGBuilder took 1202.73 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 57.7 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. [2020-12-22 09:25:21,863 INFO L168 Benchmark]: TraceAbstraction took 2604.84 ms. Allocated memory was 152.0 MB in the beginning and 192.9 MB in the end (delta: 40.9 MB). Free memory was 57.7 MB in the beginning and 110.7 MB in the end (delta: -52.9 MB). Peak memory consumption was 40.4 MB. Max. memory is 8.0 GB. [2020-12-22 09:25:21,864 INFO L168 Benchmark]: Witness Printer took 5.09 ms. Allocated memory is still 192.9 MB. Free memory is still 110.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 09:25:21,868 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 124.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 565.17 ms. Allocated memory is still 152.0 MB. Free memory was 127.0 MB in the beginning and 102.5 MB in the end (delta: 24.4 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 184.68 ms. Allocated memory is still 152.0 MB. Free memory was 102.4 MB in the beginning and 130.1 MB in the end (delta: -27.7 MB). Peak memory consumption was 8.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 83.41 ms. Allocated memory is still 152.0 MB. Free memory was 130.1 MB in the beginning and 124.8 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1202.73 ms. Allocated memory is still 152.0 MB. Free memory was 124.8 MB in the beginning and 57.7 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2604.84 ms. Allocated memory was 152.0 MB in the beginning and 192.9 MB in the end (delta: 40.9 MB). Free memory was 57.7 MB in the beginning and 110.7 MB in the end (delta: -52.9 MB). Peak memory consumption was 40.4 MB. Max. memory is 8.0 GB. * Witness Printer took 5.09 ms. Allocated memory is still 192.9 MB. Free memory is still 110.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 386]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 382. Possible FailurePath: [L22] int cond0; [L23] int dummy = 0; [L24] int N; [L25] int var0; [L26] var0 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L29] int var1; [L30] var1 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L33] int var2; [L34] var2 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L37] int var3; [L38] var3 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L41] int var4; [L42] var4 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L45] int var5; [L46] var5 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L49] int var6; [L50] var6 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L53] int var7; [L54] var7 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L57] int var8; [L58] var8 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L61] int var9; [L62] var9 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L65] int var10; [L66] var10 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L69] int var11; [L70] var11 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L73] int var12; [L74] var12 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L77] int var13; [L78] var13 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L81] int var14; [L82] var14 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L85] int var15; [L86] var15 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L89] int var16; [L90] var16 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L93] int var17; [L94] var17 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L97] int var18; [L98] var18 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L101] int var19; [L102] var19 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L105] int var20; [L106] var20 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L109] int var21; [L110] var21 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L113] int var22; [L114] var22 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L117] int var23; [L118] var23 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L121] int var24; [L122] var24 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L125] int var25; [L126] var25 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L129] int var26; [L130] var26 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L133] int var27; [L134] var27 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L137] int var28; [L138] var28 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L141] int var29; [L142] var29 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L145] int var30; [L146] var30 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L149] int var31; [L150] var31 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L153] int var32; [L154] var32 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L157] int var33; [L158] var33 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L161] int var34; [L162] var34 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L165] int var35; [L166] var35 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L169] int var36; [L170] var36 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L173] int var37; [L174] var37 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L177] int var38; [L178] var38 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L181] int var39; [L182] var39 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L185] int var40; [L186] var40 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L189] int var41; [L190] var41 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L193] int var42; [L194] var42 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L197] int var43; [L198] var43 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L201] int var44; [L202] var44 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L205] int var45; [L206] var45 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L209] int var46; [L210] var46 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L213] int var47; [L214] var47 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L217] int var48; [L218] var48 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L221] int var49; [L222] var49 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L225] int var50; [L226] var50 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L229] int var51; [L230] var51 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L233] int var52; [L234] var52 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L237] int var53; [L238] var53 = __VERIFIER_nondet_int() [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L241] int myvar0 = 1; [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L18] COND FALSE !(!cond) [L386] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 294 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 290 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=294occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 580 NumberOfCodeBlocks, 580 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 289 ConstructedInterpolants, 0 QuantifiedInterpolants, 83521 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...