./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/indp4f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI --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 0.2.0-7b2dab5 [2021-10-11 02:20:31,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:20:31,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:20:31,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:20:31,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:20:31,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:20:31,906 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:20:31,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:20:31,912 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:20:31,914 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:20:31,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:20:31,917 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:20:31,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:20:31,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:20:31,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:20:31,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:20:31,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:20:31,927 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:20:31,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:20:31,933 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:20:31,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:20:31,938 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:20:31,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:20:31,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:20:31,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:20:31,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:20:31,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:20:31,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:20:31,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:20:31,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:20:31,952 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:20:31,953 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:20:31,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:20:31,956 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:20:31,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:20:31,958 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:20:31,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:20:31,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:20:31,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:20:31,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:20:31,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:20:31,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:20:31,994 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:20:31,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:20:31,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:20:31,996 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:20:31,997 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:20:31,997 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:20:31,997 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:20:31,998 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:20:31,998 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:20:31,998 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:20:31,999 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:20:31,999 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:20:32,000 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:20:32,000 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:20:32,000 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:20:32,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:20:32,002 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:20:32,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:20:32,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:20:32,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:20:32,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:20:32,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:20:32,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:20:32,004 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:20:32,005 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:20:32,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:20:32,005 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:20:32,006 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:20:32,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:20:32,007 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:20:32,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:20:32,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:20:32,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:20:32,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:20:32,008 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:20:32,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:20:32,009 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:20:32,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:20:32,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:20:32,010 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_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14f05da2d3949ed4f72fe0fb55419fb212dd0616 [2021-10-11 02:20:32,337 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:20:32,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:20:32,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:20:32,392 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:20:32,393 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:20:32,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/array-fpi/indp4f.c [2021-10-11 02:20:32,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/data/ffc007a6f/31a45e30d839402fa1f7914e95e1b7f2/FLAG2f16d2382 [2021-10-11 02:20:33,066 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:20:33,067 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/sv-benchmarks/c/array-fpi/indp4f.c [2021-10-11 02:20:33,075 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/data/ffc007a6f/31a45e30d839402fa1f7914e95e1b7f2/FLAG2f16d2382 [2021-10-11 02:20:33,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/data/ffc007a6f/31a45e30d839402fa1f7914e95e1b7f2 [2021-10-11 02:20:33,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:20:33,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:20:33,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:33,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:20:33,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:20:33,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,484 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0d341e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33, skipping insertion in model container [2021-10-11 02:20:33,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:20:33,509 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:20:33,713 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/sv-benchmarks/c/array-fpi/indp4f.c[589,602] [2021-10-11 02:20:33,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:33,747 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:20:33,763 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/sv-benchmarks/c/array-fpi/indp4f.c[589,602] [2021-10-11 02:20:33,772 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:20:33,792 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:20:33,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33 WrapperNode [2021-10-11 02:20:33,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:20:33,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:33,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:20:33,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:20:33,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:20:33,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:20:33,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:20:33,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:20:33,860 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,910 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... [2021-10-11 02:20:33,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:20:33,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:20:33,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:20:33,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:20:33,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:20:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:20:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:20:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 02:20:34,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:20:34,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:20:34,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:20:34,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:20:34,675 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 02:20:34,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:34 BoogieIcfgContainer [2021-10-11 02:20:34,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:20:34,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:20:34,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:20:34,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:20:34,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:20:33" (1/3) ... [2021-10-11 02:20:34,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446a3817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:34, skipping insertion in model container [2021-10-11 02:20:34,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:20:33" (2/3) ... [2021-10-11 02:20:34,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@446a3817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:20:34, skipping insertion in model container [2021-10-11 02:20:34,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:34" (3/3) ... [2021-10-11 02:20:34,698 INFO L111 eAbstractionObserver]: Analyzing ICFG indp4f.c [2021-10-11 02:20:34,714 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:20:34,717 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:20:34,728 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:20:34,763 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:20:34,764 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:20:34,764 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:20:34,764 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:20:34,765 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:20:34,765 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:20:34,765 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:20:34,765 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:20:34,778 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-10-11 02:20:34,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:20:34,782 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:34,782 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:34,783 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:34,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:34,788 INFO L82 PathProgramCache]: Analyzing trace with hash -16623148, now seen corresponding path program 1 times [2021-10-11 02:20:34,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:34,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388935771] [2021-10-11 02:20:34,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:34,906 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:20:34,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1048347076] [2021-10-11 02:20:34,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:35,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:35,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:20:35,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:35,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:35,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:20:35,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:20:35,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388935771] [2021-10-11 02:20:35,247 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:20:35,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1048347076] [2021-10-11 02:20:35,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:35,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-11 02:20:35,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972237055] [2021-10-11 02:20:35,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:20:35,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:35,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:20:35,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:20:35,279 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2021-10-11 02:20:35,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:35,359 INFO L93 Difference]: Finished difference Result 22 states and 31 transitions. [2021-10-11 02:20:35,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:20:35,362 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2021-10-11 02:20:35,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:35,372 INFO L225 Difference]: With dead ends: 22 [2021-10-11 02:20:35,372 INFO L226 Difference]: Without dead ends: 11 [2021-10-11 02:20:35,376 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 [2021-10-11 02:20:35,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-11 02:20:35,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-11 02:20:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-10-11 02:20:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 14 transitions. [2021-10-11 02:20:35,417 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 14 transitions. Word has length 8 [2021-10-11 02:20:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:35,418 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 14 transitions. [2021-10-11 02:20:35,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:20:35,418 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 14 transitions. [2021-10-11 02:20:35,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:20:35,419 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:35,419 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:35,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-10-11 02:20:35,636 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:35,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:35,637 INFO L82 PathProgramCache]: Analyzing trace with hash 147050282, now seen corresponding path program 1 times [2021-10-11 02:20:35,638 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:35,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718588176] [2021-10-11 02:20:35,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:35,675 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:20:35,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [84403236] [2021-10-11 02:20:35,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:20:35,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-11 02:20:35,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:20:35,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:20:35,864 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:20:35,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-11 02:20:35,897 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718588176] [2021-10-11 02:20:35,898 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-11 02:20:35,898 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84403236] [2021-10-11 02:20:35,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:20:35,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-10-11 02:20:35,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597127201] [2021-10-11 02:20:35,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:20:35,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:20:35,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:20:35,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:20:35,903 INFO L87 Difference]: Start difference. First operand 11 states and 14 transitions. Second operand 5 states. [2021-10-11 02:20:36,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:20:36,019 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2021-10-11 02:20:36,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:20:36,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2021-10-11 02:20:36,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:20:36,021 INFO L225 Difference]: With dead ends: 24 [2021-10-11 02:20:36,021 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:20:36,022 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 [2021-10-11 02:20:36,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:20:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 13. [2021-10-11 02:20:36,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-10-11 02:20:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-10-11 02:20:36,027 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 9 [2021-10-11 02:20:36,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:20:36,028 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-10-11 02:20:36,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:20:36,028 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-10-11 02:20:36,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:20:36,029 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:20:36,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:20:36,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:20:36,262 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:20:36,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:20:36,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1149653049, now seen corresponding path program 1 times [2021-10-11 02:20:36,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:20:36,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774523692] [2021-10-11 02:20:36,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:20:36,283 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-11 02:20:36,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [789238721] [2021-10-11 02:20:36,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:20:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:20:36,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:20:36,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:20:36,396 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:20:36,453 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:20:36,453 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:20:36,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:20:36,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:20:36 BoogieIcfgContainer [2021-10-11 02:20:36,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:20:36,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:20:36,717 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:20:36,717 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:20:36,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:20:34" (3/4) ... [2021-10-11 02:20:36,719 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:20:36,776 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d12e69d-0f15-4b95-bf09-30b4534a464f/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:20:36,776 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:20:36,778 INFO L168 Benchmark]: Toolchain (without parser) took 3307.90 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 64.0 MB in the beginning and 104.4 MB in the end (delta: -40.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:36,779 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 69.6 MB in the end (delta: 24.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:36,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.21 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 73.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:36,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.26 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:36,782 INFO L168 Benchmark]: Boogie Preprocessor took 66.59 ms. Allocated memory is still 98.6 MB. Free memory was 72.4 MB in the beginning and 71.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:36,783 INFO L168 Benchmark]: RCFGBuilder took 764.92 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 48.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:36,792 INFO L168 Benchmark]: TraceAbstraction took 2033.19 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 47.7 MB in the beginning and 106.5 MB in the end (delta: -58.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:20:36,792 INFO L168 Benchmark]: Witness Printer took 59.25 ms. Allocated memory is still 138.4 MB. Free memory was 106.5 MB in the beginning and 104.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:20:36,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 69.6 MB in the end (delta: 24.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 322.21 ms. Allocated memory is still 98.6 MB. Free memory was 63.8 MB in the beginning and 73.7 MB in the end (delta: -9.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.26 ms. Allocated memory is still 98.6 MB. Free memory was 73.7 MB in the beginning and 72.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.59 ms. Allocated memory is still 98.6 MB. Free memory was 72.4 MB in the beginning and 71.2 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 764.92 ms. Allocated memory is still 98.6 MB. Free memory was 71.2 MB in the beginning and 48.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2033.19 ms. Allocated memory was 98.6 MB in the beginning and 138.4 MB in the end (delta: 39.8 MB). Free memory was 47.7 MB in the beginning and 106.5 MB in the end (delta: -58.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 59.25 ms. Allocated memory is still 138.4 MB. Free memory was 106.5 MB in the beginning and 104.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_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