/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/EvenOdd03.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 00:37:50,817 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 00:37:50,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 00:37:50,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 00:37:50,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 00:37:50,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 00:37:50,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 00:37:50,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 00:37:50,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 00:37:50,910 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 00:37:50,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 00:37:50,934 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 00:37:50,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 00:37:50,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 00:37:50,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 00:37:50,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 00:37:50,949 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 00:37:50,964 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 00:37:50,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 00:37:50,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 00:37:50,978 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 00:37:50,978 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 00:37:50,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 00:37:50,979 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 00:37:50,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 00:37:50,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 00:37:50,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 00:37:50,980 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 00:37:50,980 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 00:37:50,980 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 00:37:50,980 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 00:37:50,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 00:37:50,981 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 00:37:50,981 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 00:37:50,981 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 00:37:50,981 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 00:37:50,981 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 00:37:50,982 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 00:37:50,982 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 00:37:50,982 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 00:37:50,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 00:37:51,348 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 00:37:51,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 00:37:51,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 00:37:51,411 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 00:37:51,411 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 00:37:51,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/EvenOdd03.c [2020-10-24 00:37:51,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac5c6afa/6df4920140c34a6f80d7453ecff11209/FLAG18884d489 [2020-10-24 00:37:52,146 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 00:37:52,147 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/EvenOdd03.c [2020-10-24 00:37:52,155 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac5c6afa/6df4920140c34a6f80d7453ecff11209/FLAG18884d489 [2020-10-24 00:37:52,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ac5c6afa/6df4920140c34a6f80d7453ecff11209 [2020-10-24 00:37:52,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 00:37:52,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 00:37:52,532 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 00:37:52,532 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 00:37:52,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 00:37:52,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b5540fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52, skipping insertion in model container [2020-10-24 00:37:52,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,551 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 00:37:52,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 00:37:52,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:37:52,731 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 00:37:52,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 00:37:52,765 INFO L208 MainTranslator]: Completed translation [2020-10-24 00:37:52,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52 WrapperNode [2020-10-24 00:37:52,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 00:37:52,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 00:37:52,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 00:37:52,767 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 00:37:52,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,794 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (1/1) ... [2020-10-24 00:37:52,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 00:37:52,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 00:37:52,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 00:37:52,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 00:37:52,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (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 00:37:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 00:37:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 00:37:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 00:37:52,886 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2020-10-24 00:37:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2020-10-24 00:37:52,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 00:37:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 00:37:52,887 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 00:37:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 00:37:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 00:37:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 00:37:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2020-10-24 00:37:52,888 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2020-10-24 00:37:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 00:37:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 00:37:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 00:37:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 00:37:52,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 00:37:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 00:37:52,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 00:37:53,247 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 00:37:53,247 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-24 00:37:53,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:37:53 BoogieIcfgContainer [2020-10-24 00:37:53,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 00:37:53,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 00:37:53,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 00:37:53,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 00:37:53,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 12:37:52" (1/3) ... [2020-10-24 00:37:53,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710e5ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:37:53, skipping insertion in model container [2020-10-24 00:37:53,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 12:37:52" (2/3) ... [2020-10-24 00:37:53,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@710e5ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 12:37:53, skipping insertion in model container [2020-10-24 00:37:53,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 12:37:53" (3/3) ... [2020-10-24 00:37:53,259 INFO L111 eAbstractionObserver]: Analyzing ICFG EvenOdd03.c [2020-10-24 00:37:53,271 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 00:37:53,277 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 00:37:53,291 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 00:37:53,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 00:37:53,316 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 00:37:53,316 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 00:37:53,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 00:37:53,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 00:37:53,317 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 00:37:53,317 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 00:37:53,317 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 00:37:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2020-10-24 00:37:53,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-24 00:37:53,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 00:37:53,346 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] [2020-10-24 00:37:53,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 00:37:53,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 00:37:53,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1133317314, now seen corresponding path program 1 times [2020-10-24 00:37:53,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 00:37:53,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1038844003] [2020-10-24 00:37:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 00:37:53,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:37:53,509 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:37:53,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 00:37:53,548 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 00:37:53,583 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-24 00:37:53,584 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 00:37:53,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 00:37:53,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 12:37:53 BoogieIcfgContainer [2020-10-24 00:37:53,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 00:37:53,631 INFO L168 Benchmark]: Toolchain (without parser) took 1104.96 ms. Allocated memory is still 164.6 MB. Free memory was 140.2 MB in the beginning and 132.1 MB in the end (delta: 8.0 MB). Peak memory consumption was 9.1 MB. Max. memory is 8.0 GB. [2020-10-24 00:37:53,633 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 00:37:53,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.25 ms. Allocated memory is still 164.6 MB. Free memory was 139.5 MB in the beginning and 130.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 00:37:53,636 INFO L168 Benchmark]: Boogie Preprocessor took 32.89 ms. Allocated memory is still 164.6 MB. Free memory was 130.3 MB in the beginning and 129.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 00:37:53,639 INFO L168 Benchmark]: RCFGBuilder took 449.08 ms. Allocated memory is still 164.6 MB. Free memory was 128.8 MB in the beginning and 147.1 MB in the end (delta: -18.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. [2020-10-24 00:37:53,641 INFO L168 Benchmark]: TraceAbstraction took 374.23 ms. Allocated memory is still 164.6 MB. Free memory was 146.8 MB in the beginning and 132.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-10-24 00:37:53,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 164.6 MB. Free memory is still 138.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 234.25 ms. Allocated memory is still 164.6 MB. Free memory was 139.5 MB in the beginning and 130.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.89 ms. Allocated memory is still 164.6 MB. Free memory was 130.3 MB in the beginning and 129.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 449.08 ms. Allocated memory is still 164.6 MB. Free memory was 128.8 MB in the beginning and 147.1 MB in the end (delta: -18.3 MB). Peak memory consumption was 19.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 374.23 ms. Allocated memory is still 164.6 MB. Free memory was 146.8 MB in the beginning and 132.1 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 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: [L40] int n = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=0, n=0] [L41] COND FALSE !(n < 0) VAL [n=0] [L44] CALL, EXPR isEven(n) VAL [\old(n)=0] [L29] COND TRUE n == 0 VAL [\old(n)=0, n=0] [L30] return 1; VAL [\old(n)=0, \result=1, n=0] [L44] RET, EXPR isEven(n) VAL [isEven(n)=1, n=0] [L44] int result = isEven(n); VAL [isEven(n)=1, n=0, result=1] [L45] int mod = n % 2; VAL [mod=0, n=0, result=1] [L46] COND FALSE !(result < 0 || result == mod) VAL [mod=0, n=0, result=1] [L49] CALL reach_error() [L3] __assert_fail("0", "EvenOdd03.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=56occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 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...