./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/sina4f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V --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 4e568115ab37514ce4d1cc7d9471baa0668b07bc729fc18b545852f01c4086e0 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:39:06,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:39:06,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:39:06,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:39:06,951 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:39:06,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:39:06,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:39:06,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:39:06,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:39:06,972 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:39:06,973 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:39:06,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:39:06,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:39:06,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:39:06,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:39:06,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:39:06,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:39:06,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:39:07,000 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:39:07,007 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:39:07,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:39:07,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:39:07,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:39:07,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:39:07,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:39:07,019 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:39:07,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:39:07,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:39:07,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:39:07,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:39:07,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:39:07,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:39:07,028 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:39:07,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:39:07,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:39:07,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:39:07,031 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:39:07,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:39:07,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:39:07,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:39:07,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:39:07,034 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:39:07,062 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:39:07,063 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:39:07,063 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:39:07,063 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:39:07,064 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:39:07,064 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:39:07,064 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:39:07,065 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:39:07,065 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:39:07,065 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:39:07,065 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:39:07,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:39:07,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:39:07,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:39:07,066 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:39:07,067 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:39:07,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:39:07,067 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:39:07,068 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:39:07,068 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:39:07,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:39:07,069 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:39:07,069 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:39:07,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:39:07,070 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:39:07,070 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:39:07,070 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:39:07,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:39:07,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:39:07,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:39:07,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:39:07,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:39:07,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:07,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:39:07,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:39:07,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:39:07,073 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:39:07,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:39:07,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:39:07,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:39:07,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:39:07,074 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_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e568115ab37514ce4d1cc7d9471baa0668b07bc729fc18b545852f01c4086e0 [2021-11-23 02:39:07,327 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:39:07,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:39:07,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:39:07,358 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:39:07,359 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:39:07,360 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/array-fpi/sina4f.c [2021-11-23 02:39:07,420 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/data/688f2eb67/e5b5746b77364a53a9601ca874766342/FLAG17b2e64d7 [2021-11-23 02:39:07,856 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:39:07,857 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/sv-benchmarks/c/array-fpi/sina4f.c [2021-11-23 02:39:07,872 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/data/688f2eb67/e5b5746b77364a53a9601ca874766342/FLAG17b2e64d7 [2021-11-23 02:39:08,250 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/data/688f2eb67/e5b5746b77364a53a9601ca874766342 [2021-11-23 02:39:08,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:39:08,254 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:39:08,255 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:08,255 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:39:08,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:39:08,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23765988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08, skipping insertion in model container [2021-11-23 02:39:08,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,270 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:39:08,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:39:08,481 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_5da3687a-3bb9-4b09-8cba-20c1bb996922/sv-benchmarks/c/array-fpi/sina4f.c[589,602] [2021-11-23 02:39:08,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:08,518 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:39:08,534 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_5da3687a-3bb9-4b09-8cba-20c1bb996922/sv-benchmarks/c/array-fpi/sina4f.c[589,602] [2021-11-23 02:39:08,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:08,557 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:39:08,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08 WrapperNode [2021-11-23 02:39:08,558 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:08,559 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:08,559 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:39:08,560 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:39:08,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,595 INFO L137 Inliner]: procedures = 17, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 98 [2021-11-23 02:39:08,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:08,596 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:39:08,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:39:08,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:39:08,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,614 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:39:08,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:39:08,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:39:08,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:39:08,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (1/1) ... [2021-11-23 02:39:08,641 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:08,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:08,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:39:08,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:39:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:39:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:39:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:39:08,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:39:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:39:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:39:08,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:39:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:39:08,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:39:08,780 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:39:08,782 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:39:08,942 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:39:08,988 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:39:08,989 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-23 02:39:08,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:08 BoogieIcfgContainer [2021-11-23 02:39:08,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:39:08,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:39:09,002 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:39:09,005 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:39:09,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:08" (1/3) ... [2021-11-23 02:39:09,006 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9d92db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:09, skipping insertion in model container [2021-11-23 02:39:09,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:08" (2/3) ... [2021-11-23 02:39:09,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9d92db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:09, skipping insertion in model container [2021-11-23 02:39:09,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:08" (3/3) ... [2021-11-23 02:39:09,010 INFO L111 eAbstractionObserver]: Analyzing ICFG sina4f.c [2021-11-23 02:39:09,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:39:09,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:39:09,119 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:39:09,126 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 02:39:09,127 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:39:09,141 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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 02:39:09,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:39:09,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:09,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:09,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:09,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:09,155 INFO L85 PathProgramCache]: Analyzing trace with hash -155408202, now seen corresponding path program 1 times [2021-11-23 02:39:09,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:09,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102266321] [2021-11-23 02:39:09,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:09,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:09,490 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 02:39:09,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:09,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102266321] [2021-11-23 02:39:09,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102266321] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:09,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:09,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:09,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68341744] [2021-11-23 02:39:09,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:09,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:09,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:09,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:09,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:09,536 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 02:39:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:09,608 INFO L93 Difference]: Finished difference Result 24 states and 35 transitions. [2021-11-23 02:39:09,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:09,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-23 02:39:09,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:09,619 INFO L225 Difference]: With dead ends: 24 [2021-11-23 02:39:09,619 INFO L226 Difference]: Without dead ends: 12 [2021-11-23 02:39:09,622 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:09,630 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:09,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 02:39:09,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-23 02:39:09,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-23 02:39:09,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 11 states have internal predecessors, (16), 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 02:39:09,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 16 transitions. [2021-11-23 02:39:09,670 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 16 transitions. Word has length 9 [2021-11-23 02:39:09,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:09,671 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 16 transitions. [2021-11-23 02:39:09,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 02:39:09,672 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2021-11-23 02:39:09,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:39:09,675 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:09,675 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:09,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:39:09,677 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:09,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:09,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1655315069, now seen corresponding path program 1 times [2021-11-23 02:39:09,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:09,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711075864] [2021-11-23 02:39:09,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:09,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:09,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 02:39:09,804 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:09,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711075864] [2021-11-23 02:39:09,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711075864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:09,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:09,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 02:39:09,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998792886] [2021-11-23 02:39:09,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:09,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 02:39:09,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:09,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 02:39:09,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:39:09,809 INFO L87 Difference]: Start difference. First operand 12 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 02:39:09,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:09,874 INFO L93 Difference]: Finished difference Result 27 states and 36 transitions. [2021-11-23 02:39:09,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 02:39:09,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2021-11-23 02:39:09,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:09,877 INFO L225 Difference]: With dead ends: 27 [2021-11-23 02:39:09,878 INFO L226 Difference]: Without dead ends: 20 [2021-11-23 02:39:09,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 02:39:09,885 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:09,887 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 6 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-23 02:39:09,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 15. [2021-11-23 02:39:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 02:39:09,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2021-11-23 02:39:09,901 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 10 [2021-11-23 02:39:09,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:09,903 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2021-11-23 02:39:09,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 02:39:09,903 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2021-11-23 02:39:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 02:39:09,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:09,909 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:09,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:39:09,910 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:09,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:09,911 INFO L85 PathProgramCache]: Analyzing trace with hash -165518152, now seen corresponding path program 1 times [2021-11-23 02:39:09,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:09,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700393809] [2021-11-23 02:39:09,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:09,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:10,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:39:10,004 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:39:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:39:10,114 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:39:10,117 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:39:10,118 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:39:10,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:39:10,123 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 02:39:10,126 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:39:10,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:39:10 BoogieIcfgContainer [2021-11-23 02:39:10,155 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:39:10,156 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:39:10,156 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:39:10,156 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:39:10,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:08" (3/4) ... [2021-11-23 02:39:10,158 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 02:39:10,202 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da3687a-3bb9-4b09-8cba-20c1bb996922/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:39:10,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:39:10,203 INFO L158 Benchmark]: Toolchain (without parser) took 1949.49ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 52.6MB in the beginning and 61.6MB in the end (delta: -9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-23 02:39:10,204 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:39:10,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.28ms. Allocated memory is still 90.2MB. Free memory was 52.4MB in the beginning and 63.4MB in the end (delta: -11.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:39:10,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.62ms. Allocated memory is still 90.2MB. Free memory was 63.4MB in the beginning and 61.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:39:10,205 INFO L158 Benchmark]: Boogie Preprocessor took 26.69ms. Allocated memory is still 90.2MB. Free memory was 61.6MB in the beginning and 60.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:39:10,205 INFO L158 Benchmark]: RCFGBuilder took 373.93ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 47.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:39:10,206 INFO L158 Benchmark]: TraceAbstraction took 1155.90ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 46.6MB in the beginning and 64.3MB in the end (delta: -17.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-11-23 02:39:10,206 INFO L158 Benchmark]: Witness Printer took 46.86ms. Allocated memory is still 111.1MB. Free memory was 64.3MB in the beginning and 61.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:39:10,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 90.2MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.28ms. Allocated memory is still 90.2MB. Free memory was 52.4MB in the beginning and 63.4MB in the end (delta: -11.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.62ms. Allocated memory is still 90.2MB. Free memory was 63.4MB in the beginning and 61.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.69ms. Allocated memory is still 90.2MB. Free memory was 61.6MB in the beginning and 60.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 373.93ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 47.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1155.90ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 46.6MB in the beginning and 64.3MB in the end (delta: -17.7MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 46.86ms. Allocated memory is still 111.1MB. Free memory was 64.3MB in the beginning and 61.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. 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; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L30] long long *b = malloc(sizeof(long long)*N); [L32] sum[0] = 0 [L33] i=0 VAL [a={-2:0}, b={-1:0}, i=0, N=1, sum={4:0}] [L33] COND TRUE i