./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/s22iff.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-fpi/s22iff.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG --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 75e129c4ccc113a1bc74f150c5c9a3b8e8a8a3019d365123b9e2a3c8e4f46d6c .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 05:05:42,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 05:05:42,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 05:05:42,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 05:05:42,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 05:05:42,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 05:05:42,413 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 05:05:42,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 05:05:42,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 05:05:42,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 05:05:42,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 05:05:42,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 05:05:42,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 05:05:42,429 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 05:05:42,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 05:05:42,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 05:05:42,440 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 05:05:42,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 05:05:42,445 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 05:05:42,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 05:05:42,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 05:05:42,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 05:05:42,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 05:05:42,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 05:05:42,465 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 05:05:42,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 05:05:42,470 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 05:05:42,472 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 05:05:42,473 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 05:05:42,474 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 05:05:42,475 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 05:05:42,476 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 05:05:42,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 05:05:42,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 05:05:42,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 05:05:42,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 05:05:42,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 05:05:42,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 05:05:42,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 05:05:42,484 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 05:05:42,485 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 05:05:42,486 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 05:05:42,536 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 05:05:42,536 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 05:05:42,538 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 05:05:42,538 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 05:05:42,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 05:05:42,538 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 05:05:42,539 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 05:05:42,539 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 05:05:42,547 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 05:05:42,547 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 05:05:42,548 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 05:05:42,548 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 05:05:42,548 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 05:05:42,548 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 05:05:42,548 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 05:05:42,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 05:05:42,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 05:05:42,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 05:05:42,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 05:05:42,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 05:05:42,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 05:05:42,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 05:05:42,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 05:05:42,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 05:05:42,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 05:05:42,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 05:05:42,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 05:05:42,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 05:05:42,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 05:05:42,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 05:05:42,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:05:42,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 05:05:42,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 05:05:42,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 05:05:42,553 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 05:05:42,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 05:05:42,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 05:05:42,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 05:05:42,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 05:05:42,554 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_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75e129c4ccc113a1bc74f150c5c9a3b8e8a8a3019d365123b9e2a3c8e4f46d6c [2021-10-29 05:05:42,794 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 05:05:42,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 05:05:42,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 05:05:42,819 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 05:05:42,820 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 05:05:42,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/array-fpi/s22iff.c [2021-10-29 05:05:42,919 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/data/a96e55f6b/e1e5d9ba7cc84bc5a1d0ce732243b325/FLAGb9a7895a8 [2021-10-29 05:05:43,407 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 05:05:43,408 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/sv-benchmarks/c/array-fpi/s22iff.c [2021-10-29 05:05:43,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/data/a96e55f6b/e1e5d9ba7cc84bc5a1d0ce732243b325/FLAGb9a7895a8 [2021-10-29 05:05:43,805 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/data/a96e55f6b/e1e5d9ba7cc84bc5a1d0ce732243b325 [2021-10-29 05:05:43,808 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 05:05:43,809 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 05:05:43,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 05:05:43,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 05:05:43,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 05:05:43,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:05:43" (1/1) ... [2021-10-29 05:05:43,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5547df23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:43, skipping insertion in model container [2021-10-29 05:05:43,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 05:05:43" (1/1) ... [2021-10-29 05:05:43,831 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 05:05:43,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 05:05:44,019 WARN L228 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_55291268-49c9-4b97-b529-ec142c19df34/sv-benchmarks/c/array-fpi/s22iff.c[589,602] [2021-10-29 05:05:44,058 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:05:44,073 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 05:05:44,089 WARN L228 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_55291268-49c9-4b97-b529-ec142c19df34/sv-benchmarks/c/array-fpi/s22iff.c[589,602] [2021-10-29 05:05:44,121 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 05:05:44,137 INFO L208 MainTranslator]: Completed translation [2021-10-29 05:05:44,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44 WrapperNode [2021-10-29 05:05:44,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 05:05:44,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 05:05:44,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 05:05:44,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 05:05:44,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,196 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 05:05:44,197 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 05:05:44,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 05:05:44,198 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 05:05:44,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,235 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 05:05:44,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 05:05:44,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 05:05:44,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 05:05:44,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (1/1) ... [2021-10-29 05:05:44,252 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 05:05:44,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:05:44,285 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 05:05:44,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 05:05:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 05:05:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 05:05:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 05:05:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 05:05:44,331 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 05:05:44,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 05:05:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 05:05:44,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 05:05:44,847 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 05:05:44,847 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-29 05:05:44,850 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:05:44 BoogieIcfgContainer [2021-10-29 05:05:44,850 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 05:05:44,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 05:05:44,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 05:05:44,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 05:05:44,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 05:05:43" (1/3) ... [2021-10-29 05:05:44,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b8f808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:05:44, skipping insertion in model container [2021-10-29 05:05:44,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 05:05:44" (2/3) ... [2021-10-29 05:05:44,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b8f808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 05:05:44, skipping insertion in model container [2021-10-29 05:05:44,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:05:44" (3/3) ... [2021-10-29 05:05:44,861 INFO L111 eAbstractionObserver]: Analyzing ICFG s22iff.c [2021-10-29 05:05:44,867 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 05:05:44,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 05:05:44,932 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 05:05:44,944 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 [2021-10-29 05:05:44,945 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 05:05:44,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) [2021-10-29 05:05:44,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 05:05:44,985 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:05:44,986 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:05:44,987 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:05:44,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:05:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1162179950, now seen corresponding path program 1 times [2021-10-29 05:05:45,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:05:45,033 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246165328] [2021-10-29 05:05:45,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:05:45,035 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:05:45,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:05:45,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 05:05:45,329 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:05:45,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246165328] [2021-10-29 05:05:45,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246165328] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:05:45,331 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:05:45,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-29 05:05:45,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192503710] [2021-10-29 05:05:45,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-29 05:05:45,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:05:45,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-29 05:05:45,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-29 05:05:45,369 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 10 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-10-29 05:05:45,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:05:45,423 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2021-10-29 05:05:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-29 05:05:45,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-10-29 05:05:45,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:05:45,437 INFO L225 Difference]: With dead ends: 20 [2021-10-29 05:05:45,437 INFO L226 Difference]: Without dead ends: 9 [2021-10-29 05:05:45,441 INFO L786 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 [2021-10-29 05:05:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-10-29 05:05:45,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-10-29 05:05:45,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-10-29 05:05:45,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2021-10-29 05:05:45,479 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 7 [2021-10-29 05:05:45,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:05:45,480 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2021-10-29 05:05:45,481 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2021-10-29 05:05:45,481 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-10-29 05:05:45,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 05:05:45,482 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:05:45,482 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:05:45,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 05:05:45,483 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:05:45,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:05:45,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1871859412, now seen corresponding path program 1 times [2021-10-29 05:05:45,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:05:45,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946944377] [2021-10-29 05:05:45,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:05:45,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:05:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 05:05:45,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 05:05:45,615 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 05:05:45,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946944377] [2021-10-29 05:05:45,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946944377] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 05:05:45,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 05:05:45,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-29 05:05:45,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058528261] [2021-10-29 05:05:45,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-29 05:05:45,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 05:05:45,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-29 05:05:45,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-29 05:05:45,622 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-10-29 05:05:45,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 05:05:45,678 INFO L93 Difference]: Finished difference Result 15 states and 19 transitions. [2021-10-29 05:05:45,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 05:05:45,679 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2021-10-29 05:05:45,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 05:05:45,680 INFO L225 Difference]: With dead ends: 15 [2021-10-29 05:05:45,680 INFO L226 Difference]: Without dead ends: 11 [2021-10-29 05:05:45,681 INFO L786 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 [2021-10-29 05:05:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-29 05:05:45,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-29 05:05:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 05:05:45,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2021-10-29 05:05:45,693 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 8 [2021-10-29 05:05:45,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 05:05:45,693 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2021-10-29 05:05:45,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 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) [2021-10-29 05:05:45,694 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2021-10-29 05:05:45,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 05:05:45,695 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 05:05:45,696 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 05:05:45,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 05:05:45,701 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 05:05:45,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 05:05:45,703 INFO L85 PathProgramCache]: Analyzing trace with hash 908788323, now seen corresponding path program 1 times [2021-10-29 05:05:45,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 05:05:45,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021954747] [2021-10-29 05:05:45,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:05:45,705 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 05:05:45,741 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 05:05:45,741 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1127811365] [2021-10-29 05:05:45,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 05:05:45,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:05:45,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 05:05:45,752 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 05:05:45,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 05:05:45,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:05:45,841 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 05:05:45,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 05:05:45,911 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 05:05:45,911 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 05:05:45,913 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 05:05:45,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 05:05:46,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 05:05:46,131 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 05:05:46,134 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 05:05:46,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 05:05:46 BoogieIcfgContainer [2021-10-29 05:05:46,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 05:05:46,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 05:05:46,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 05:05:46,170 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 05:05:46,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 05:05:44" (3/4) ... [2021-10-29 05:05:46,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 05:05:46,226 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_55291268-49c9-4b97-b529-ec142c19df34/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 05:05:46,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 05:05:46,228 INFO L168 Benchmark]: Toolchain (without parser) took 2417.46 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 61.0 MB in the beginning and 64.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 16.1 GB. [2021-10-29 05:05:46,228 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 94.4 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:05:46,229 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.56 ms. Allocated memory is still 94.4 MB. Free memory was 60.7 MB in the beginning and 69.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 05:05:46,229 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.46 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 67.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 05:05:46,230 INFO L168 Benchmark]: Boogie Preprocessor took 41.63 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 66.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:05:46,231 INFO L168 Benchmark]: RCFGBuilder took 611.01 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 50.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:05:46,231 INFO L168 Benchmark]: TraceAbstraction took 1316.56 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 49.9 MB in the beginning and 67.4 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. [2021-10-29 05:05:46,232 INFO L168 Benchmark]: Witness Printer took 56.75 ms. Allocated memory is still 119.5 MB. Free memory was 67.4 MB in the beginning and 64.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 05:05:46,235 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 94.4 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.56 ms. Allocated memory is still 94.4 MB. Free memory was 60.7 MB in the beginning and 69.6 MB in the end (delta: -8.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.46 ms. Allocated memory is still 94.4 MB. Free memory was 69.6 MB in the beginning and 67.9 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.63 ms. Allocated memory is still 94.4 MB. Free memory was 67.9 MB in the beginning and 66.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 611.01 ms. Allocated memory is still 94.4 MB. Free memory was 66.3 MB in the beginning and 50.4 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1316.56 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 49.9 MB in the beginning and 67.4 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.8 MB. Max. memory is 16.1 GB. * Witness Printer took 56.75 ms. Allocated memory is still 119.5 MB. Free memory was 67.4 MB in the beginning and 64.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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) [L13] COND FALSE !(!cond) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 1 [L32] i=0 VAL [N=1] [L32] COND TRUE i