./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/indp4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/indp4f.c -s /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14f05da2d3949ed4f72fe0fb55419fb212dd0616 ........................................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.0-a4ecdab [2020-11-22 13:00:52,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:00:52,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:00:52,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:00:52,305 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:00:52,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:00:52,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:00:52,319 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:00:52,321 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:00:52,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:00:52,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:00:52,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:00:52,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:00:52,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:00:52,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:00:52,337 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:00:52,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:00:52,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:00:52,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:00:52,350 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:00:52,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:00:52,354 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:00:52,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:00:52,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:00:52,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:00:52,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:00:52,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:00:52,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:00:52,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:00:52,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:00:52,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:00:52,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:00:52,373 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:00:52,374 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:00:52,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:00:52,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:00:52,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:00:52,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:00:52,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:00:52,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:00:52,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:00:52,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:00:52,426 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:00:52,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:00:52,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:00:52,429 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:00:52,429 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:00:52,429 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:00:52,429 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:00:52,430 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:00:52,430 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:00:52,430 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:00:52,431 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:00:52,432 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:00:52,432 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:00:52,432 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:00:52,433 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:00:52,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:00:52,434 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:00:52,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:00:52,434 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:00:52,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:00:52,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:00:52,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:00:52,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:00:52,436 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:00:52,436 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:00:52,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:00:52,437 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:00:52,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:00:52,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:00:52,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:00:52,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:00:52,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:00:52,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:00:52,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:00:52,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:00:52,441 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:00:52,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:00:52,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:00:52,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:00:52,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:00:52,442 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14f05da2d3949ed4f72fe0fb55419fb212dd0616 [2020-11-22 13:00:52,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:00:52,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:00:52,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:00:52,715 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:00:52,717 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:00:52,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/../../sv-benchmarks/c/array-fpi/indp4f.c [2020-11-22 13:00:52,777 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/data/558026a4d/a5e1969317b547f582ed42b73b73c632/FLAGd0c7f0fa0 [2020-11-22 13:00:53,163 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:00:53,164 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/sv-benchmarks/c/array-fpi/indp4f.c [2020-11-22 13:00:53,177 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/data/558026a4d/a5e1969317b547f582ed42b73b73c632/FLAGd0c7f0fa0 [2020-11-22 13:00:53,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/data/558026a4d/a5e1969317b547f582ed42b73b73c632 [2020-11-22 13:00:53,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:00:53,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:00:53,589 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:53,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:00:53,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:00:53,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3061fd70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53, skipping insertion in model container [2020-11-22 13:00:53,595 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:00:53,615 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:00:53,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:53,820 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:00:53,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:00:53,851 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:00:53,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53 WrapperNode [2020-11-22 13:00:53,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:00:53,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:53,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:00:53,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:00:53,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,891 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:00:53,892 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:00:53,892 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:00:53,892 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:00:53,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,909 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... [2020-11-22 13:00:53,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:00:53,917 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:00:53,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:00:53,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:00:53,926 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/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 [2020-11-22 13:00:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:00:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:00:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-22 13:00:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-22 13:00:53,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:00:53,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:00:53,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-22 13:00:54,492 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:00:54,493 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-22 13:00:54,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:54 BoogieIcfgContainer [2020-11-22 13:00:54,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:00:54,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:00:54,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:00:54,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:00:54,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:00:53" (1/3) ... [2020-11-22 13:00:54,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c79991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:54, skipping insertion in model container [2020-11-22 13:00:54,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:00:53" (2/3) ... [2020-11-22 13:00:54,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66c79991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:00:54, skipping insertion in model container [2020-11-22 13:00:54,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:54" (3/3) ... [2020-11-22 13:00:54,502 INFO L111 eAbstractionObserver]: Analyzing ICFG indp4f.c [2020-11-22 13:00:54,512 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:00:54,516 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:00:54,527 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:00:54,557 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:00:54,557 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:00:54,557 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:00:54,557 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:00:54,558 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:00:54,558 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:00:54,558 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:00:54,558 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:00:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-22 13:00:54,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:00:54,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:54,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:54,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:54,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:54,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1925288658, now seen corresponding path program 1 times [2020-11-22 13:00:54,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:54,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107680816] [2020-11-22 13:00:54,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:54,673 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:00:54,673 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [715104908] [2020-11-22 13:00:54,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:00:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:54,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:00:54,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:54,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:54,833 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:00:54,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107680816] [2020-11-22 13:00:54,847 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:00:54,847 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715104908] [2020-11-22 13:00:54,848 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:54,848 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:00:54,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126363307] [2020-11-22 13:00:54,853 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:00:54,853 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:54,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:00:54,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:54,868 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2020-11-22 13:00:54,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:54,927 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2020-11-22 13:00:54,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 13:00:54,929 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-11-22 13:00:54,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:54,936 INFO L225 Difference]: With dead ends: 22 [2020-11-22 13:00:54,936 INFO L226 Difference]: Without dead ends: 11 [2020-11-22 13:00:54,938 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:00:54,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-22 13:00:54,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-22 13:00:54,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-22 13:00:54,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2020-11-22 13:00:54,967 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 8 [2020-11-22 13:00:54,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:54,967 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2020-11-22 13:00:54,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:00:54,976 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2020-11-22 13:00:54,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-22 13:00:54,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:54,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:55,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-22 13:00:55,198 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:55,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:55,199 INFO L82 PathProgramCache]: Analyzing trace with hash 216863497, now seen corresponding path program 1 times [2020-11-22 13:00:55,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:55,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074836761] [2020-11-22 13:00:55,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:55,218 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:00:55,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [660527368] [2020-11-22 13:00:55,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:00:55,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:00:55,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-22 13:00:55,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:00:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 13:00:55,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:00:55,354 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 13:00:55,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074836761] [2020-11-22 13:00:55,355 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:00:55,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [660527368] [2020-11-22 13:00:55,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:00:55,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2020-11-22 13:00:55,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657119866] [2020-11-22 13:00:55,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:00:55,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:00:55,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:00:55,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:00:55,358 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand 5 states. [2020-11-22 13:00:55,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:00:55,421 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2020-11-22 13:00:55,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-22 13:00:55,423 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-11-22 13:00:55,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:00:55,423 INFO L225 Difference]: With dead ends: 24 [2020-11-22 13:00:55,423 INFO L226 Difference]: Without dead ends: 18 [2020-11-22 13:00:55,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-11-22 13:00:55,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-22 13:00:55,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2020-11-22 13:00:55,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-22 13:00:55,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-11-22 13:00:55,428 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2020-11-22 13:00:55,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:00:55,428 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-11-22 13:00:55,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:00:55,428 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-22 13:00:55,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-22 13:00:55,429 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:00:55,429 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:00:55,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:00:55,638 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:00:55,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:00:55,639 INFO L82 PathProgramCache]: Analyzing trace with hash -476464136, now seen corresponding path program 1 times [2020-11-22 13:00:55,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:00:55,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293425773] [2020-11-22 13:00:55,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:00:55,654 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:00:55,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176305695] [2020-11-22 13:00:55,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:00:55,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:00:55,713 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:00:55,737 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:00:55,785 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:00:55,785 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:00:55,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:00:56,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:00:56 BoogieIcfgContainer [2020-11-22 13:00:56,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:00:56,014 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:00:56,014 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:00:56,014 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:00:56,014 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:00:54" (3/4) ... [2020-11-22 13:00:56,016 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:00:56,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_d4630b4a-72ad-41f2-bcb0-1d0844f03262/bin/utaipan/witness.graphml [2020-11-22 13:00:56,061 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:00:56,063 INFO L168 Benchmark]: Toolchain (without parser) took 2474.29 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 55.2 MB in the end (delta: 7.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,064 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 52.0 MB in the beginning and 52.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:56,065 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.76 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 89.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,065 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.03 ms. Allocated memory is still 111.1 MB. Free memory was 89.2 MB in the beginning and 87.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,066 INFO L168 Benchmark]: Boogie Preprocessor took 25.18 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:56,067 INFO L168 Benchmark]: RCFGBuilder took 577.33 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 63.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,067 INFO L168 Benchmark]: TraceAbstraction took 1516.98 ms. Allocated memory is still 111.1 MB. Free memory was 63.5 MB in the beginning and 57.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:00:56,068 INFO L168 Benchmark]: Witness Printer took 47.99 ms. Allocated memory is still 111.1 MB. Free memory was 57.5 MB in the beginning and 55.2 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:00:56,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 52.0 MB in the beginning and 52.0 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 262.76 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 62.8 MB in the beginning and 89.2 MB in the end (delta: -26.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.03 ms. Allocated memory is still 111.1 MB. Free memory was 89.2 MB in the beginning and 87.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.18 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 577.33 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 63.5 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1516.98 ms. Allocated memory is still 111.1 MB. Free memory was 63.5 MB in the beginning and 57.5 MB in the end (delta: 6.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 47.99 ms. Allocated memory is still 111.1 MB. Free memory was 57.5 MB in the beginning and 55.2 MB in the end (delta: 2.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 10]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L30] i=0 VAL [N=1] [L30] COND TRUE i