/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/recursive/EvenOdd03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:33:33,844 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:33:33,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:33:33,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:33:33,871 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:33:33,872 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:33:33,874 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:33:33,876 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:33:33,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:33:33,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:33:33,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:33:33,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:33:33,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:33:33,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:33:33,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:33:33,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:33:33,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:33:33,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:33:33,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:33:33,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:33:33,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:33:33,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:33:33,892 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:33:33,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:33:33,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:33:33,895 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:33:33,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:33:33,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:33:33,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:33:33,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:33:33,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:33:33,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:33:33,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:33:33,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:33:33,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:33:33,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:33:33,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:33:33,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:33:33,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:33:33,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:33:33,903 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:33:33,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:33:33,920 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:33:33,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:33:33,922 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:33:33,922 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:33:33,922 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:33:33,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:33:33,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:33:33,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:33:33,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:33:33,923 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:33:33,924 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:33:33,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:33:33,924 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:33:33,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:33:33,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:33:33,925 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:33:33,925 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:33:33,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:33:33,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:33:33,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:33:33,926 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:33:33,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:33:33,926 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:33:34,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:33:34,200 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:33:34,203 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:33:34,205 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:33:34,205 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:33:34,206 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/EvenOdd03.c [2020-08-22 18:33:34,277 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664102d8b/45547dbe8cf24c2b83571be1056efbf8/FLAG3dcc92890 [2020-08-22 18:33:34,756 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:33:34,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/EvenOdd03.c [2020-08-22 18:33:34,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664102d8b/45547dbe8cf24c2b83571be1056efbf8/FLAG3dcc92890 [2020-08-22 18:33:35,121 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/664102d8b/45547dbe8cf24c2b83571be1056efbf8 [2020-08-22 18:33:35,133 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:33:35,135 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:33:35,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:33:35,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:33:35,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:33:35,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311fb6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35, skipping insertion in model container [2020-08-22 18:33:35,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:33:35,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:33:35,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:33:35,351 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:33:35,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:33:35,383 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:33:35,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35 WrapperNode [2020-08-22 18:33:35,384 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:33:35,385 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:33:35,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:33:35,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:33:35,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,486 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (1/1) ... [2020-08-22 18:33:35,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:33:35,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:33:35,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:33:35,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:33:35,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (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 [2020-08-22 18:33:35,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:33:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:33:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2020-08-22 18:33:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2020-08-22 18:33:35,571 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:33:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:33:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:33:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2020-08-22 18:33:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2020-08-22 18:33:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:33:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:33:35,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:33:35,822 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:33:35,822 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 18:33:35,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:33:35 BoogieIcfgContainer [2020-08-22 18:33:35,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:33:35,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:33:35,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:33:35,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:33:35,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:33:35" (1/3) ... [2020-08-22 18:33:35,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd1a80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:33:35, skipping insertion in model container [2020-08-22 18:33:35,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:33:35" (2/3) ... [2020-08-22 18:33:35,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cd1a80f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:33:35, skipping insertion in model container [2020-08-22 18:33:35,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:33:35" (3/3) ... [2020-08-22 18:33:35,851 INFO L109 eAbstractionObserver]: Analyzing ICFG EvenOdd03.c [2020-08-22 18:33:35,876 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:33:35,883 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:33:35,897 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:33:35,919 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:33:35,919 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:33:35,919 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:33:35,919 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:33:35,919 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:33:35,920 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:33:35,920 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:33:35,920 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:33:35,934 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-08-22 18:33:35,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-08-22 18:33:35,944 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:33:35,945 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] [2020-08-22 18:33:35,945 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:33:35,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:33:35,951 INFO L82 PathProgramCache]: Analyzing trace with hash -382036863, now seen corresponding path program 1 times [2020-08-22 18:33:35,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:33:35,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352522080] [2020-08-22 18:33:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:33:36,017 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:33:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:33:36,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:33:36,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:33:36,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:33:36,108 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:33:36,108 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:33:36,109 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:33:36,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:33:36 BoogieIcfgContainer [2020-08-22 18:33:36,128 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:33:36,131 INFO L168 Benchmark]: Toolchain (without parser) took 994.94 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 102.5 MB in the beginning and 152.5 MB in the end (delta: -50.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:33:36,132 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:33:36,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.39 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:33:36,134 INFO L168 Benchmark]: Boogie Preprocessor took 106.39 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 180.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:33:36,135 INFO L168 Benchmark]: RCFGBuilder took 337.52 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 165.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. [2020-08-22 18:33:36,136 INFO L168 Benchmark]: TraceAbstraction took 294.17 ms. Allocated memory is still 201.9 MB. Free memory was 165.8 MB in the beginning and 152.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-08-22 18:33:36,140 INFO L336 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 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.39 ms. Allocated memory is still 138.9 MB. Free memory was 102.3 MB in the beginning and 92.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.39 ms. Allocated memory was 138.9 MB in the beginning and 201.9 MB in the end (delta: 62.9 MB). Free memory was 92.6 MB in the beginning and 180.5 MB in the end (delta: -87.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 337.52 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 165.8 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 294.17 ms. Allocated memory is still 201.9 MB. Free memory was 165.8 MB in the beginning and 152.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 47]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L38] int n = __VERIFIER_nondet_int(); [L39] COND FALSE !(n < 0) [L42] CALL, EXPR isEven(n) [L27] COND TRUE n == 0 [L28] return 1; [L42] RET, EXPR isEven(n) [L42] int result = isEven(n); [L43] int mod = n % 2; [L44] COND FALSE !(result < 0 || result == mod) [L47] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=44occurred 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: No data available, 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...