./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res1of.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/res1of.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl --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 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:40:56,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:40:56,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:40:56,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:40:56,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:40:56,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:40:56,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:40:56,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:40:56,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:40:56,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:40:56,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:40:56,877 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:40:56,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:40:56,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:40:56,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:40:56,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:40:56,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:40:56,892 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:40:56,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:40:56,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:40:56,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:40:56,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:40:56,914 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:40:56,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:40:56,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:40:56,927 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:40:56,928 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:40:56,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:40:56,931 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:40:56,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:40:56,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:40:56,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:40:56,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:40:56,938 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:40:56,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:40:56,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:40:56,942 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:40:56,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:40:56,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:40:56,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:40:56,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:40:56,946 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:40:57,001 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:40:57,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:40:57,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:40:57,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:40:57,004 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:40:57,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:40:57,012 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:40:57,012 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:40:57,013 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:40:57,013 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:40:57,014 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:40:57,015 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:40:57,015 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:40:57,015 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:40:57,016 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:40:57,016 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:40:57,016 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:40:57,017 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:40:57,018 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:40:57,018 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:40:57,018 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:40:57,019 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:40:57,019 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:40:57,019 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:40:57,020 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:40:57,020 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:40:57,022 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:40:57,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:40:57,023 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:40:57,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:40:57,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:40:57,024 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:40:57,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:40:57,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:40:57,025 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:40:57,025 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:40:57,026 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:40:57,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:40:57,026 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:40:57,026 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:40:57,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:40:57,027 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_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff [2021-11-23 17:40:57,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:40:57,401 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:40:57,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:40:57,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:40:57,406 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:40:57,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/array-fpi/res1of.c [2021-11-23 17:40:57,497 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/882b6b000/e4278138966e453f939684205e5478aa/FLAGe30e144f8 [2021-11-23 17:40:58,038 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:40:58,040 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/sv-benchmarks/c/array-fpi/res1of.c [2021-11-23 17:40:58,051 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/882b6b000/e4278138966e453f939684205e5478aa/FLAGe30e144f8 [2021-11-23 17:40:58,371 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/882b6b000/e4278138966e453f939684205e5478aa [2021-11-23 17:40:58,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:40:58,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:40:58,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:40:58,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:40:58,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:40:58,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fc3e220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58, skipping insertion in model container [2021-11-23 17:40:58,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:40:58,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:40:58,710 WARN L230 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_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-23 17:40:58,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:40:58,762 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:40:58,778 WARN L230 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_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-23 17:40:58,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:40:58,823 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:40:58,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58 WrapperNode [2021-11-23 17:40:58,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:40:58,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:40:58,825 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:40:58,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:40:58,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,880 INFO L137 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-11-23 17:40:58,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:40:58,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:40:58,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:40:58,882 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:40:58,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,892 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,907 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:40:58,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:40:58,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:40:58,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:40:58,920 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:40:58" (1/1) ... [2021-11-23 17:40:58,928 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:40:58,942 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:40:58,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:40:59,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:40:59,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:40:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:40:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:40:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 17:40:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:40:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:40:59,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:40:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 17:40:59,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:40:59,101 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:40:59,103 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:40:59,270 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:40:59,292 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:40:59,297 INFO L158 Benchmark]: Toolchain (without parser) took 917.45ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 51.8MB in the beginning and 79.0MB in the end (delta: -27.3MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2021-11-23 17:40:59,298 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:40:59,300 INFO L158 Benchmark]: CACSL2BoogieTranslator took 440.45ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 51.6MB in the beginning and 94.0MB in the end (delta: -42.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 17:40:59,301 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.81ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 91.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:40:59,302 INFO L158 Benchmark]: Boogie Preprocessor took 35.26ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 91.0MB in the end (delta: 871.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:40:59,303 INFO L158 Benchmark]: RCFGBuilder took 377.15ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 79.0MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:40:59,309 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 86.0MB. Free memory was 58.2MB in the beginning and 58.2MB in the end (delta: 21.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 440.45ms. Allocated memory was 86.0MB in the beginning and 117.4MB in the end (delta: 31.5MB). Free memory was 51.6MB in the beginning and 94.0MB in the end (delta: -42.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.81ms. Allocated memory is still 117.4MB. Free memory was 93.7MB in the beginning and 91.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.26ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 91.0MB in the end (delta: 871.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.15ms. Allocated memory is still 117.4MB. Free memory was 91.0MB in the beginning and 79.0MB in the end (delta: 12.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:40:59,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/res1of.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl --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 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:41:02,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:41:02,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:41:02,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:41:02,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:41:02,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:41:02,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:41:02,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:41:02,228 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:41:02,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:41:02,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:41:02,232 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:41:02,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:41:02,234 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:41:02,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:41:02,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:41:02,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:41:02,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:41:02,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:41:02,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:41:02,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:41:02,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:41:02,253 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:41:02,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:41:02,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:41:02,264 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:41:02,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:41:02,265 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:41:02,266 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:41:02,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:41:02,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:41:02,269 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:41:02,270 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:41:02,271 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:41:02,272 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:41:02,273 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:41:02,274 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:41:02,274 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:41:02,275 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:41:02,276 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:41:02,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:41:02,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:41:02,310 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:41:02,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:41:02,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:41:02,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:41:02,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:41:02,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:41:02,314 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:41:02,314 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:41:02,314 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:41:02,314 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:41:02,316 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:41:02,316 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:41:02,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:41:02,318 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:41:02,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:41:02,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:41:02,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:41:02,319 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:41:02,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:41:02,319 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:41:02,320 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:41:02,320 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:41:02,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:41:02,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:41:02,321 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:41:02,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:41:02,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:41:02,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:41:02,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:41:02,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:41:02,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:41:02,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:41:02,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:41:02,323 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:41:02,323 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:41:02,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:41:02,324 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:41:02,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:41:02,325 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff [2021-11-23 17:41:02,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:41:02,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:41:02,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:41:02,870 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:41:02,871 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:41:02,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/array-fpi/res1of.c [2021-11-23 17:41:02,959 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/376e1c919/825b20ec4f2c49f09b23264e1a603bbe/FLAG8d227f2f3 [2021-11-23 17:41:03,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:41:03,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/sv-benchmarks/c/array-fpi/res1of.c [2021-11-23 17:41:03,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/376e1c919/825b20ec4f2c49f09b23264e1a603bbe/FLAG8d227f2f3 [2021-11-23 17:41:03,964 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/data/376e1c919/825b20ec4f2c49f09b23264e1a603bbe [2021-11-23 17:41:03,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:41:03,968 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:41:03,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:41:03,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:41:03,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:41:03,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:41:03" (1/1) ... [2021-11-23 17:41:03,976 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6af6c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:03, skipping insertion in model container [2021-11-23 17:41:03,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:41:03" (1/1) ... [2021-11-23 17:41:03,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:41:04,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:41:04,157 WARN L230 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_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-23 17:41:04,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:41:04,194 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:41:04,206 WARN L230 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_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-23 17:41:04,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:41:04,282 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:41:04,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04 WrapperNode [2021-11-23 17:41:04,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:41:04,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:41:04,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:41:04,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:41:04,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,327 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 87 [2021-11-23 17:41:04,328 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:41:04,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:41:04,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:41:04,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:41:04,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:41:04,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:41:04,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:41:04,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:41:04,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (1/1) ... [2021-11-23 17:41:04,386 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:41:04,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:41:04,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:41:04,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:41:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:41:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:41:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 17:41:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-23 17:41:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 17:41:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 17:41:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:41:04,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:41:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-23 17:41:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 17:41:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 17:41:04,589 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:41:04,591 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:41:04,854 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:41:04,862 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:41:04,862 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 17:41:04,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:41:04 BoogieIcfgContainer [2021-11-23 17:41:04,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:41:04,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:41:04,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:41:04,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:41:04,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:41:03" (1/3) ... [2021-11-23 17:41:04,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662fc6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:41:04, skipping insertion in model container [2021-11-23 17:41:04,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:41:04" (2/3) ... [2021-11-23 17:41:04,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662fc6e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:41:04, skipping insertion in model container [2021-11-23 17:41:04,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:41:04" (3/3) ... [2021-11-23 17:41:04,887 INFO L111 eAbstractionObserver]: Analyzing ICFG res1of.c [2021-11-23 17:41:04,893 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:41:04,909 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:41:05,020 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:41:05,039 INFO L339 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 17:41:05,040 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:41:05,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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) [2021-11-23 17:41:05,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 17:41:05,063 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:41:05,064 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:41:05,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:41:05,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:41:05,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1202110748, now seen corresponding path program 1 times [2021-11-23 17:41:05,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:41:05,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [60991498] [2021-11-23 17:41:05,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:41:05,088 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:41:05,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:41:05,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:41:05,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:41:05,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:41:05,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 17:41:05,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:41:05,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:41:05,356 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:41:05,357 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:41:05,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [60991498] [2021-11-23 17:41:05,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [60991498] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:41:05,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:41:05,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:41:05,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102633555] [2021-11-23 17:41:05,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:41:05,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 17:41:05,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:41:05,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 17:41:05,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:41:05,418 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-11-23 17:41:05,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:41:05,439 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-11-23 17:41:05,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 17:41:05,442 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2021-11-23 17:41:05,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:41:05,454 INFO L225 Difference]: With dead ends: 44 [2021-11-23 17:41:05,454 INFO L226 Difference]: Without dead ends: 20 [2021-11-23 17:41:05,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 17:41:05,463 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 17:41:05,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 17:41:05,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-23 17:41:05,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-23 17:41:05,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2021-11-23 17:41:05,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-23 17:41:05,513 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 15 [2021-11-23 17:41:05,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:41:05,514 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-23 17:41:05,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2021-11-23 17:41:05,514 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-23 17:41:05,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 17:41:05,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:41:05,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:41:05,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:41:05,729 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:41:05,729 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:41:05,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:41:05,731 INFO L85 PathProgramCache]: Analyzing trace with hash -944124056, now seen corresponding path program 1 times [2021-11-23 17:41:05,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:41:05,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [937286375] [2021-11-23 17:41:05,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:41:05,732 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:41:05,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:41:05,736 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:41:05,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:41:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:41:05,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 17:41:05,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:41:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:41:06,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:41:06,124 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:41:06,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [937286375] [2021-11-23 17:41:06,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [937286375] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:41:06,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:41:06,126 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 17:41:06,126 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433185534] [2021-11-23 17:41:06,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:41:06,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 17:41:06,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:41:06,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 17:41:06,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-23 17:41:06,145 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-11-23 17:41:06,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:41:06,411 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2021-11-23 17:41:06,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 17:41:06,412 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-11-23 17:41:06,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:41:06,413 INFO L225 Difference]: With dead ends: 41 [2021-11-23 17:41:06,413 INFO L226 Difference]: Without dead ends: 28 [2021-11-23 17:41:06,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-23 17:41:06,415 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 51 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:41:06,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 10 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 17:41:06,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-23 17:41:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-11-23 17:41:06,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 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) [2021-11-23 17:41:06,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-11-23 17:41:06,424 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2021-11-23 17:41:06,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:41:06,441 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-23 17:41:06,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-11-23 17:41:06,442 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-11-23 17:41:06,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 17:41:06,443 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:41:06,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:41:06,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:41:06,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:41:06,662 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:41:06,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:41:06,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1401448688, now seen corresponding path program 1 times [2021-11-23 17:41:06,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:41:06,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [821996412] [2021-11-23 17:41:06,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:41:06,665 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:41:06,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:41:06,666 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:41:06,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:41:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 17:41:06,787 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 17:41:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 17:41:06,911 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-23 17:41:06,911 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 17:41:06,912 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:41:06,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:41:07,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:41:07,120 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 17:41:07,125 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:41:07,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:41:07 BoogieIcfgContainer [2021-11-23 17:41:07,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:41:07,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:41:07,224 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:41:07,224 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:41:07,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:41:04" (3/4) ... [2021-11-23 17:41:07,227 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 17:41:07,289 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_988f0ce2-a495-4f57-9fbf-ed4b08fa7bbe/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:41:07,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:41:07,291 INFO L158 Benchmark]: Toolchain (without parser) took 3322.05ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 46.5MB in the beginning and 57.1MB in the end (delta: -10.6MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-11-23 17:41:07,291 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 67.1MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:41:07,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.52ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 50.1MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:41:07,292 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.39ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 48.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:41:07,293 INFO L158 Benchmark]: Boogie Preprocessor took 37.01ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 46.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:41:07,294 INFO L158 Benchmark]: RCFGBuilder took 510.10ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 35.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:41:07,294 INFO L158 Benchmark]: TraceAbstraction took 2338.23ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 34.7MB in the beginning and 59.8MB in the end (delta: -25.1MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2021-11-23 17:41:07,295 INFO L158 Benchmark]: Witness Printer took 71.97ms. Allocated memory is still 98.6MB. Free memory was 59.8MB in the beginning and 57.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:41:07,298 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 67.1MB. Free memory is still 47.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.52ms. Allocated memory is still 67.1MB. Free memory was 46.3MB in the beginning and 50.1MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.39ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 48.3MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.01ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 46.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 510.10ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 35.2MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2338.23ms. Allocated memory was 67.1MB in the beginning and 98.6MB in the end (delta: 31.5MB). Free memory was 34.7MB in the beginning and 59.8MB in the end (delta: -25.1MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * Witness Printer took 71.97ms. Allocated memory is still 98.6MB. Free memory was 59.8MB in the beginning and 57.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s 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) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 0 [L33] i=0 VAL [a={5:0}, b={-2147483646:0}, i=0, N=1, sum={-2147483637:0}] [L33] COND TRUE i