/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 --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 0.1.25-72570d3 [2020-08-22 21:53:25,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 21:53:25,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 21:53:25,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 21:53:25,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 21:53:25,963 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 21:53:25,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 21:53:25,966 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 21:53:25,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 21:53:25,971 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 21:53:25,972 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 21:53:25,974 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 21:53:25,974 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 21:53:25,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 21:53:25,978 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 21:53:25,980 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 21:53:25,981 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 21:53:25,982 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 21:53:25,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 21:53:25,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 21:53:25,991 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 21:53:25,993 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 21:53:25,994 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 21:53:25,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 21:53:26,007 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 21:53:26,012 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 21:53:26,012 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 21:53:26,013 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 21:53:26,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 21:53:26,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 21:53:26,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 21:53:26,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 21:53:26,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 21:53:26,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 21:53:26,017 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 21:53:26,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 21:53:26,019 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 21:53:26,029 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 21:53:26,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 21:53:26,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 21:53:26,032 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 21:53:26,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 21:53:26,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 21:53:26,033 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 21:53:26,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 21:53:26,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 21:53:26,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 21:53:26,034 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 21:53:26,034 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 21:53:26,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 21:53:26,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 21:53:26,035 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 21:53:26,035 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 21:53:26,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 21:53:26,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 21:53:26,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 21:53:26,036 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 21:53:26,036 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 21:53:26,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 21:53:26,037 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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 [2020-08-22 21:53:26,336 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 21:53:26,353 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 21:53:26,360 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 21:53:26,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 21:53:26,361 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 21:53:26,362 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/McCarthy91-1.c [2020-08-22 21:53:26,430 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/606598cdd/7cf1a72db2c94cda97328999872db0ee/FLAGd2505cfbf [2020-08-22 21:53:26,869 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 21:53:26,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/McCarthy91-1.c [2020-08-22 21:53:26,876 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/606598cdd/7cf1a72db2c94cda97328999872db0ee/FLAGd2505cfbf [2020-08-22 21:53:27,313 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/606598cdd/7cf1a72db2c94cda97328999872db0ee [2020-08-22 21:53:27,322 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 21:53:27,323 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 21:53:27,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 21:53:27,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 21:53:27,328 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 21:53:27,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a4d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27, skipping insertion in model container [2020-08-22 21:53:27,332 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 21:53:27,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 21:53:27,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:53:27,544 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 21:53:27,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 21:53:27,567 INFO L208 MainTranslator]: Completed translation [2020-08-22 21:53:27,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27 WrapperNode [2020-08-22 21:53:27,568 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 21:53:27,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 21:53:27,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 21:53:27,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 21:53:27,578 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,655 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,663 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (1/1) ... [2020-08-22 21:53:27,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 21:53:27,671 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 21:53:27,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 21:53:27,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 21:53:27,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (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 [2020-08-22 21:53:27,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 21:53:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 21:53:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure f91 [2020-08-22 21:53:27,720 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 21:53:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 21:53:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 21:53:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure f91 [2020-08-22 21:53:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 21:53:27,720 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 21:53:27,721 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 21:53:27,889 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 21:53:27,889 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-22 21:53:27,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:53:27 BoogieIcfgContainer [2020-08-22 21:53:27,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 21:53:27,894 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 21:53:27,894 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 21:53:27,897 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 21:53:27,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 09:53:27" (1/3) ... [2020-08-22 21:53:27,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1109d795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:53:27, skipping insertion in model container [2020-08-22 21:53:27,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:53:27" (2/3) ... [2020-08-22 21:53:27,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1109d795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 09:53:27, skipping insertion in model container [2020-08-22 21:53:27,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:53:27" (3/3) ... [2020-08-22 21:53:27,900 INFO L109 eAbstractionObserver]: Analyzing ICFG McCarthy91-1.c [2020-08-22 21:53:27,910 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 21:53:27,916 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 21:53:27,930 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 21:53:27,951 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 21:53:27,951 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 21:53:27,951 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 21:53:27,952 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 21:53:27,952 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 21:53:27,952 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 21:53:27,952 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 21:53:27,952 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 21:53:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-08-22 21:53:27,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-08-22 21:53:27,977 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 21:53:27,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 21:53:27,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 21:53:27,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 21:53:27,983 INFO L82 PathProgramCache]: Analyzing trace with hash 346555185, now seen corresponding path program 1 times [2020-08-22 21:53:27,989 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 21:53:27,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [843530034] [2020-08-22 21:53:27,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 21:53:28,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:53:28,074 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:53:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 21:53:28,087 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 21:53:28,103 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 21:53:28,103 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 21:53:28,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 21:53:28,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 09:53:28 BoogieIcfgContainer [2020-08-22 21:53:28,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 21:53:28,133 INFO L168 Benchmark]: Toolchain (without parser) took 808.23 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 103.6 MB in the beginning and 154.8 MB in the end (delta: -51.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2020-08-22 21:53:28,134 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-22 21:53:28,135 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.13 ms. Allocated memory is still 139.5 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-08-22 21:53:28,136 INFO L168 Benchmark]: Boogie Preprocessor took 102.47 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.0 MB in the beginning and 180.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-08-22 21:53:28,137 INFO L168 Benchmark]: RCFGBuilder took 221.66 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 168.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. [2020-08-22 21:53:28,138 INFO L168 Benchmark]: TraceAbstraction took 235.89 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 154.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2020-08-22 21:53:28,142 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 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.13 ms. Allocated memory is still 139.5 MB. Free memory was 103.2 MB in the beginning and 94.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.47 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 94.0 MB in the beginning and 180.7 MB in the end (delta: -86.8 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 221.66 ms. Allocated memory is still 202.4 MB. Free memory was 180.7 MB in the beginning and 168.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235.89 ms. Allocated memory is still 202.4 MB. Free memory was 168.2 MB in the beginning and 154.8 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 30]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); VAL [__VERIFIER_nondet_int()=102, x=102] [L26] CALL, EXPR f91(x) VAL [\old(x)=102] [L16] COND TRUE x > 100 VAL [\old(x)=102, x=102] [L17] return x -10; VAL [\old(x)=102, \result=92, x=102] [L26] RET, EXPR f91(x) VAL [f91(x)=92, x=102] [L26] int result = f91(x); VAL [f91(x)=92, result=92, x=102] [L27] COND FALSE !(result == 91 || x > 102 && result == x - 10) VAL [result=92, x=102] [L30] __VERIFIER_error() VAL [result=92, x=102] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 31 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=31occurred 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, 18 NumberOfCodeBlocks, 18 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...