/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/loops/trex01-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:45:40,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:45:40,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:45:40,317 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:45:40,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:45:40,319 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:45:40,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:45:40,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:45:40,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:45:40,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:45:40,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:45:40,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:45:40,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:45:40,331 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:45:40,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:45:40,333 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:45:40,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:45:40,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:45:40,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:45:40,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:45:40,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:45:40,342 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:45:40,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:45:40,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:45:40,347 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:45:40,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 17:45:40,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 17:45:40,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 17:45:40,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 17:45:40,354 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 17:45:40,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 17:45:40,355 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 17:45:40,356 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 17:45:40,356 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:45:40,357 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:45:40,358 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:45:40,359 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:45:40,372 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:45:40,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:45:40,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:45:40,374 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:45:40,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:45:40,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:45:40,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:45:40,375 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:45:40,375 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:45:40,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:45:40,375 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:45:40,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:45:40,376 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:45:40,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:45:40,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:45:40,376 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:45:40,377 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:45:40,377 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:45:40,377 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:45:40,377 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:45:40,377 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:45:40,378 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:45:40,378 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:45:40,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:45:40,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:45:40,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:45:40,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:45:40,866 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:45:40,867 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01-1.c [2020-09-04 17:45:40,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fd9158bd/e56d0d64de9b4706aa7e60953ed3891a/FLAG39164fb95 [2020-09-04 17:45:41,539 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:45:41,540 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops/trex01-1.c [2020-09-04 17:45:41,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fd9158bd/e56d0d64de9b4706aa7e60953ed3891a/FLAG39164fb95 [2020-09-04 17:45:41,901 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/8fd9158bd/e56d0d64de9b4706aa7e60953ed3891a [2020-09-04 17:45:41,916 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:45:41,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:45:41,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:45:41,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:45:41,925 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:45:41,926 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:45:41" (1/1) ... [2020-09-04 17:45:41,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0614b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:41, skipping insertion in model container [2020-09-04 17:45:41,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:45:41" (1/1) ... [2020-09-04 17:45:41,941 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:45:41,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:45:42,238 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:45:42,244 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:45:42,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:45:42,283 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:45:42,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42 WrapperNode [2020-09-04 17:45:42,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:45:42,284 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:45:42,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:45:42,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:45:42,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,396 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,401 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,413 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... [2020-09-04 17:45:42,417 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:45:42,417 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:45:42,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:45:42,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:45:42,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 17:45:42,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:45:42,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:45:42,496 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:45:42,496 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-04 17:45:42,496 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:45:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:45:42,496 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:45:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-09-04 17:45:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:45:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-04 17:45:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:45:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:45:42,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:45:42,756 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:45:42,757 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 17:45:42,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:45:42 BoogieIcfgContainer [2020-09-04 17:45:42,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:45:42,764 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:45:42,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:45:42,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:45:42,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:45:41" (1/3) ... [2020-09-04 17:45:42,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a4cfc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:45:42, skipping insertion in model container [2020-09-04 17:45:42,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:45:42" (2/3) ... [2020-09-04 17:45:42,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a4cfc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:45:42, skipping insertion in model container [2020-09-04 17:45:42,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:45:42" (3/3) ... [2020-09-04 17:45:42,774 INFO L109 eAbstractionObserver]: Analyzing ICFG trex01-1.c [2020-09-04 17:45:42,813 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:45:42,839 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:45:42,875 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:45:42,916 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:45:42,917 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:45:42,917 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:45:42,917 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:45:42,917 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:45:42,917 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:45:42,918 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:45:42,918 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:45:42,936 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-09-04 17:45:42,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-09-04 17:45:42,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:45:42,949 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] [2020-09-04 17:45:42,950 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:45:42,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:45:42,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1256366237, now seen corresponding path program 1 times [2020-09-04 17:45:42,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:45:42,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047113471] [2020-09-04 17:45:42,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:45:43,045 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:45:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 17:45:43,111 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 17:45:43,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 17:45:43,135 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 17:45:43,163 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 17:45:43,163 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 17:45:43,164 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:45:43,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:45:43 BoogieIcfgContainer [2020-09-04 17:45:43,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:45:43,191 INFO L168 Benchmark]: Toolchain (without parser) took 1270.92 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 100.9 MB in the beginning and 150.2 MB in the end (delta: -49.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,192 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,193 INFO L168 Benchmark]: CACSL2BoogieTranslator took 363.99 ms. Allocated memory is still 141.0 MB. Free memory was 100.7 MB in the beginning and 91.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,195 INFO L168 Benchmark]: Boogie Preprocessor took 132.59 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 91.1 MB in the beginning and 179.9 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,195 INFO L168 Benchmark]: RCFGBuilder took 345.66 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 164.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,196 INFO L168 Benchmark]: TraceAbstraction took 422.30 ms. Allocated memory is still 201.3 MB. Free memory was 164.2 MB in the beginning and 150.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-09-04 17:45:43,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 119.6 MB in the beginning and 119.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 363.99 ms. Allocated memory is still 141.0 MB. Free memory was 100.7 MB in the beginning and 91.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.59 ms. Allocated memory was 141.0 MB in the beginning and 201.3 MB in the end (delta: 60.3 MB). Free memory was 91.1 MB in the beginning and 179.9 MB in the end (delta: -88.9 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 345.66 ms. Allocated memory is still 201.3 MB. Free memory was 179.3 MB in the beginning and 164.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 422.30 ms. Allocated memory is still 201.3 MB. Free memory was 164.2 MB in the beginning and 150.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L34] _Bool c = __VERIFIER_nondet_bool(); [L35] COND TRUE \read(c) [L36] CALL f(1) [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L13] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L14] COND FALSE !(!(k <= 1073741823)) [L17] COND FALSE !(z < k) [L18] CALL __VERIFIER_assert(z>=2) [L4] COND TRUE !(cond) [L5] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 46 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=46occurred 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...