./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-fpi/s2liff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/array-fpi/s2liff.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0835979986308520ab61fc08973d63467b492bfe ............................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 17:25:35,826 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 17:25:35,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 17:25:35,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 17:25:35,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 17:25:35,867 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 17:25:35,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 17:25:35,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 17:25:35,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 17:25:35,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 17:25:35,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 17:25:35,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 17:25:35,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 17:25:35,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 17:25:35,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 17:25:35,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 17:25:35,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 17:25:35,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 17:25:35,886 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 17:25:35,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 17:25:35,891 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 17:25:35,892 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 17:25:35,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 17:25:35,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 17:25:35,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 17:25:35,899 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 17:25:35,899 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 17:25:35,900 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 17:25:35,900 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 17:25:35,901 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 17:25:35,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 17:25:35,902 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 17:25:35,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 17:25:35,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 17:25:35,904 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 17:25:35,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 17:25:35,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 17:25:35,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 17:25:35,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 17:25:35,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 17:25:35,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 17:25:35,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 17:25:35,935 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 17:25:35,935 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 17:25:35,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 17:25:35,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 17:25:35,937 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 17:25:35,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 17:25:35,938 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 17:25:35,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 17:25:35,938 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 17:25:35,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 17:25:35,939 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 17:25:35,939 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 17:25:35,939 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 17:25:35,939 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 17:25:35,939 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 17:25:35,940 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 17:25:35,940 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 17:25:35,940 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 17:25:35,940 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 17:25:35,940 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 17:25:35,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:25:35,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 17:25:35,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 17:25:35,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 17:25:35,941 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 17:25:35,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 17:25:35,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 17:25:35,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 17:25:35,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0835979986308520ab61fc08973d63467b492bfe [2021-07-04 17:25:36,212 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 17:25:36,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 17:25:36,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 17:25:36,239 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 17:25:36,240 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 17:25:36,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/s2liff.c [2021-07-04 17:25:36,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a917678dd/27c889eedc1e4e92aced1e7080badc01/FLAGba14df81e [2021-07-04 17:25:36,646 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 17:25:36,646 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s2liff.c [2021-07-04 17:25:36,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a917678dd/27c889eedc1e4e92aced1e7080badc01/FLAGba14df81e [2021-07-04 17:25:37,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a917678dd/27c889eedc1e4e92aced1e7080badc01 [2021-07-04 17:25:37,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 17:25:37,060 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 17:25:37,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 17:25:37,062 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 17:25:37,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 17:25:37,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21a481ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37, skipping insertion in model container [2021-07-04 17:25:37,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 17:25:37,081 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 17:25:37,182 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s2liff.c[589,602] [2021-07-04 17:25:37,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:25:37,202 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 17:25:37,217 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/s2liff.c[589,602] [2021-07-04 17:25:37,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 17:25:37,262 INFO L208 MainTranslator]: Completed translation [2021-07-04 17:25:37,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37 WrapperNode [2021-07-04 17:25:37,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 17:25:37,264 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 17:25:37,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 17:25:37,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 17:25:37,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 17:25:37,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 17:25:37,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 17:25:37,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 17:25:37,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 17:25:37,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 17:25:37,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 17:25:37,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 17:25:37,334 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (1/1) ... [2021-07-04 17:25:37,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 17:25:37,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 17:25:37,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-04 17:25:37,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-04 17:25:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 17:25:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 17:25:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-04 17:25:37,400 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-07-04 17:25:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 17:25:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 17:25:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-07-04 17:25:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-04 17:25:37,689 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 17:25:37,690 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-07-04 17:25:37,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:25:37 BoogieIcfgContainer [2021-07-04 17:25:37,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 17:25:37,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 17:25:37,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 17:25:37,695 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 17:25:37,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 05:25:37" (1/3) ... [2021-07-04 17:25:37,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f762a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:25:37, skipping insertion in model container [2021-07-04 17:25:37,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 05:25:37" (2/3) ... [2021-07-04 17:25:37,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f762a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 05:25:37, skipping insertion in model container [2021-07-04 17:25:37,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:25:37" (3/3) ... [2021-07-04 17:25:37,697 INFO L111 eAbstractionObserver]: Analyzing ICFG s2liff.c [2021-07-04 17:25:37,703 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 17:25:37,703 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 17:25:37,745 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 17:25:37,749 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 17:25:37,753 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 17:25:37,762 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:25:37,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-04 17:25:37,765 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:25:37,765 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:25:37,766 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:25:37,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:25:37,772 INFO L82 PathProgramCache]: Analyzing trace with hash -845640729, now seen corresponding path program 1 times [2021-07-04 17:25:37,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:25:37,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025255477] [2021-07-04 17:25:37,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:25:37,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:25:37,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:25:37,904 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:25:37,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:25:37,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:25:37,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:25:37,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:25:37,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:25:37,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025255477] [2021-07-04 17:25:37,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025255477] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 17:25:37,910 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 17:25:37,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-04 17:25:37,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609567750] [2021-07-04 17:25:37,925 INFO L425 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-07-04 17:25:37,925 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:25:37,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-07-04 17:25:37,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 17:25:37,939 INFO L87 Difference]: Start difference. First operand has 22 states, 20 states have (on average 1.55) internal successors, (31), 21 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:25:37,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:25:37,952 INFO L93 Difference]: Finished difference Result 40 states and 56 transitions. [2021-07-04 17:25:37,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-04 17:25:37,953 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-07-04 17:25:37,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:25:37,959 INFO L225 Difference]: With dead ends: 40 [2021-07-04 17:25:37,959 INFO L226 Difference]: Without dead ends: 18 [2021-07-04 17:25:37,962 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-07-04 17:25:37,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-07-04 17:25:37,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-07-04 17:25:37,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:25:37,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2021-07-04 17:25:37,990 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 13 [2021-07-04 17:25:37,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:25:37,991 INFO L442 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2021-07-04 17:25:37,991 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:25:37,992 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-07-04 17:25:37,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-07-04 17:25:37,992 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:25:37,993 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:25:37,993 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 17:25:37,993 INFO L374 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:25:37,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:25:37,997 INFO L82 PathProgramCache]: Analyzing trace with hash -1238667739, now seen corresponding path program 1 times [2021-07-04 17:25:37,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:25:37,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479028319] [2021-07-04 17:25:37,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:25:37,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:25:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 17:25:38,064 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:25:38,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:25:38,065 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:25:38,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 17:25:38,080 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:25:38,081 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 17:25:38,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 17:25:38,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 17:25:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 17:25:38,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-04 17:25:38,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479028319] [2021-07-04 17:25:38,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479028319] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-04 17:25:38,099 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-04 17:25:38,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-04 17:25:38,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379038890] [2021-07-04 17:25:38,101 INFO L425 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-04 17:25:38,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-04 17:25:38,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-04 17:25:38,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:25:38,104 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:25:38,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 17:25:38,174 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2021-07-04 17:25:38,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 17:25:38,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-07-04 17:25:38,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 17:25:38,176 INFO L225 Difference]: With dead ends: 36 [2021-07-04 17:25:38,176 INFO L226 Difference]: Without dead ends: 25 [2021-07-04 17:25:38,177 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-07-04 17:25:38,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2021-07-04 17:25:38,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 21. [2021-07-04 17:25:38,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:25:38,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-07-04 17:25:38,183 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 13 [2021-07-04 17:25:38,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 17:25:38,184 INFO L442 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-07-04 17:25:38,184 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 17:25:38,184 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-07-04 17:25:38,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-07-04 17:25:38,185 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 17:25:38,185 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-04 17:25:38,187 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-04 17:25:38,187 INFO L374 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 17:25:38,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 17:25:38,188 INFO L82 PathProgramCache]: Analyzing trace with hash 2001188913, now seen corresponding path program 1 times [2021-07-04 17:25:38,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 17:25:38,189 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507705656] [2021-07-04 17:25:38,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 17:25:38,190 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 17:25:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 17:25:38,244 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 17:25:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 17:25:38,263 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 17:25:38,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 17:25:38,278 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 17:25:38,279 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-04 17:25:38,280 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 17:25:38,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 05:25:38 BoogieIcfgContainer [2021-07-04 17:25:38,311 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 17:25:38,312 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 17:25:38,312 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 17:25:38,312 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 17:25:38,312 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 05:25:37" (3/4) ... [2021-07-04 17:25:38,314 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-04 17:25:38,349 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 17:25:38,349 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 17:25:38,350 INFO L168 Benchmark]: Toolchain (without parser) took 1290.02 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.9 MB in the beginning and 40.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-07-04 17:25:38,350 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 62.9 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:25:38,350 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.35 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 46.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 17:25:38,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.74 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 44.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 17:25:38,353 INFO L168 Benchmark]: Boogie Preprocessor took 33.77 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 43.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 17:25:38,353 INFO L168 Benchmark]: RCFGBuilder took 357.78 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.3 MB in the beginning and 58.0 MB in the end (delta: -14.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-07-04 17:25:38,353 INFO L168 Benchmark]: TraceAbstraction took 619.03 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 43.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. [2021-07-04 17:25:38,354 INFO L168 Benchmark]: Witness Printer took 37.20 ms. Allocated memory is still 75.5 MB. Free memory was 43.0 MB in the beginning and 40.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 17:25:38,355 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 62.9 MB. Free memory is still 45.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 201.35 ms. Allocated memory is still 62.9 MB. Free memory was 43.8 MB in the beginning and 46.4 MB in the end (delta: -2.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.74 ms. Allocated memory is still 62.9 MB. Free memory was 46.2 MB in the beginning and 44.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.77 ms. Allocated memory is still 62.9 MB. Free memory was 44.7 MB in the beginning and 43.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 357.78 ms. Allocated memory was 62.9 MB in the beginning and 75.5 MB in the end (delta: 12.6 MB). Free memory was 43.3 MB in the beginning and 58.0 MB in the end (delta: -14.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 619.03 ms. Allocated memory is still 75.5 MB. Free memory was 57.6 MB in the beginning and 43.0 MB in the end (delta: 14.7 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.1 GB. * Witness Printer took 37.20 ms. Allocated memory is still 75.5 MB. Free memory was 43.0 MB in the beginning and 40.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = N [L32] i=0 VAL [N=1] [L32] COND TRUE i