/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive/McCarthy91-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:38:25,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:38:25,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:38:25,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:38:25,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:38:25,325 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:38:25,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:38:25,327 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:38:25,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:38:25,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:38:25,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:38:25,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:38:25,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:38:25,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:38:25,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:38:25,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:38:25,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:38:25,366 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 00:38:25,378 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:38:25,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:38:25,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:38:25,380 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:38:25,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:38:25,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:38:25,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:38:25,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:38:25,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:38:25,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:38:25,381 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:38:25,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:38:25,381 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:38:25,382 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:38:25,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:38:25,382 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:38:25,382 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:38:25,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:38:25,383 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:38:25,383 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:38:25,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:38:25,383 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:38:25,383 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:38:25,726 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:38:25,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:38:25,758 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:38:25,759 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:38:25,760 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:38:25,760 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/McCarthy91-1.c [2020-10-24 00:38:25,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242a283c3/dffe0e47762c41139f38423f44abe0cb/FLAGa33300b3f [2020-10-24 00:38:26,323 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:38:26,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-1.c [2020-10-24 00:38:26,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242a283c3/dffe0e47762c41139f38423f44abe0cb/FLAGa33300b3f [2020-10-24 00:38:26,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/242a283c3/dffe0e47762c41139f38423f44abe0cb [2020-10-24 00:38:26,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:38:26,754 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:38:26,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:38:26,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:38:26,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:38:26,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:38:26" (1/1) ... [2020-10-24 00:38:26,773 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@229e11d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:26, skipping insertion in model container [2020-10-24 00:38:26,773 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:38:26" (1/1) ... [2020-10-24 00:38:26,782 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:38:26,798 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:38:26,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:38:26,990 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:38:27,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:38:27,023 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:38:27,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27 WrapperNode [2020-10-24 00:38:27,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:38:27,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:38:27,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:38:27,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:38:27,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (1/1) ... [2020-10-24 00:38:27,037 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (1/1) ... [2020-10-24 00:38:27,048 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (1/1) ... [2020-10-24 00:38:27,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (1/1) ... [2020-10-24 00:38:27,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (1/1) ... [2020-10-24 00:38:27,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (1/1) ... [2020-10-24 00:38:27,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (1/1) ... [2020-10-24 00:38:27,078 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:38:27,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:38:27,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:38:27,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:38:27,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (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 [2020-10-24 00:38:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:38:27,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:38:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:38:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2020-10-24 00:38:27,183 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:38:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:38:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:38:27,183 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:38:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:38:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 00:38:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2020-10-24 00:38:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:38:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:38:27,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:38:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:38:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:38:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:38:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:38:27,430 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:38:27,431 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 00:38:27,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:38:27 BoogieIcfgContainer [2020-10-24 00:38:27,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:38:27,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:38:27,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:38:27,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:38:27,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:38:26" (1/3) ... [2020-10-24 00:38:27,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651f081c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:38:27, skipping insertion in model container [2020-10-24 00:38:27,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:38:27" (2/3) ... [2020-10-24 00:38:27,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@651f081c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:38:27, skipping insertion in model container [2020-10-24 00:38:27,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:38:27" (3/3) ... [2020-10-24 00:38:27,444 INFO L111 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2020-10-24 00:38:27,479 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:38:27,489 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:38:27,517 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:38:27,547 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:38:27,547 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:38:27,547 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:38:27,547 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:38:27,548 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:38:27,548 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:38:27,548 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:38:27,548 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:38:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-10-24 00:38:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-24 00:38:27,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:38:27,578 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] [2020-10-24 00:38:27,578 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:38:27,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:38:27,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1590698952, now seen corresponding path program 1 times [2020-10-24 00:38:27,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:38:27,596 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1473223894] [2020-10-24 00:38:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:38:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:38:27,783 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:38:27,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:38:27,853 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:38:27,900 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:38:27,901 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:38:27,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:38:27,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:38:27 BoogieIcfgContainer [2020-10-24 00:38:27,965 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:38:27,971 INFO L168 Benchmark]: Toolchain (without parser) took 1217.96 ms. Allocated memory is still 151.0 MB. Free memory was 135.4 MB in the beginning and 107.7 MB in the end (delta: 27.7 MB). Peak memory consumption was 27.2 MB. Max. memory is 8.0 GB. [2020-10-24 00:38:27,972 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:38:27,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.43 ms. Allocated memory is still 151.0 MB. Free memory was 134.6 MB in the beginning and 125.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 00:38:27,980 INFO L168 Benchmark]: Boogie Preprocessor took 53.60 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 124.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:38:27,981 INFO L168 Benchmark]: RCFGBuilder took 353.38 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 121.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:38:27,982 INFO L168 Benchmark]: TraceAbstraction took 531.19 ms. Allocated memory is still 151.0 MB. Free memory was 121.3 MB in the beginning and 107.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-24 00:38:27,988 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 123.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 263.43 ms. Allocated memory is still 151.0 MB. Free memory was 134.6 MB in the beginning and 125.4 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 53.60 ms. Allocated memory is still 151.0 MB. Free memory was 125.4 MB in the beginning and 124.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 353.38 ms. Allocated memory is still 151.0 MB. Free memory was 124.1 MB in the beginning and 121.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 531.19 ms. Allocated memory is still 151.0 MB. Free memory was 121.3 MB in the beginning and 107.7 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L27] int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=102, x=102] [L28] CALL, EXPR f91(x) VAL [\old(x)=102] [L18] COND TRUE x > 100 VAL [\old(x)=102, x=102] [L19] return x -10; VAL [\old(x)=102, \result=92, x=102] [L28] RET, EXPR f91(x) VAL [f91(x)=92, x=102] [L28] int result = f91(x); VAL [f91(x)=92, result=92, x=102] [L29] COND FALSE !(result == 91 || x > 102 && result == x - 10) VAL [result=92, x=102] [L32] CALL reach_error() [L3] __assert_fail("0", "McCarthy91-1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! Received shutdown request...