./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res2f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res2f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 219ff25dcfb107eec264b890e617d01b4ab0eae8d593ab3965da9d4eaab5cf5a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 10:48:14,397 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:48:14,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:48:14,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:48:14,430 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:48:14,431 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:48:14,433 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:48:14,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:48:14,437 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:48:14,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:48:14,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:48:14,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:48:14,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:48:14,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:48:14,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:48:14,447 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:48:14,448 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:48:14,449 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:48:14,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:48:14,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:48:14,457 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:48:14,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:48:14,460 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:48:14,461 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:48:14,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:48:14,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:48:14,468 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:48:14,469 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:48:14,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:48:14,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:48:14,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:48:14,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:48:14,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:48:14,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:48:14,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:48:14,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:48:14,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:48:14,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:48:14,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:48:14,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:48:14,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:48:14,482 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:48:14,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:48:14,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:48:14,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:48:14,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:48:14,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:48:14,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:48:14,510 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:48:14,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:48:14,511 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:48:14,511 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:48:14,511 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:48:14,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:48:14,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:48:14,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:48:14,512 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:48:14,513 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:48:14,513 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:48:14,513 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:48:14,513 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:48:14,513 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:48:14,514 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:48:14,514 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:48:14,514 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:48:14,514 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:48:14,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:48:14,515 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:48:14,515 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:48:14,515 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:48:14,516 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:48:14,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:48:14,516 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:48:14,516 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:48:14,516 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:48:14,517 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 219ff25dcfb107eec264b890e617d01b4ab0eae8d593ab3965da9d4eaab5cf5a [2022-10-17 10:48:14,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:48:14,826 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:48:14,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:48:14,832 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:48:14,833 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:48:14,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/array-fpi/res2f.c [2022-10-17 10:48:14,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/data/dbb7aef38/bf7f5aff6daf4c1e83ebe3fb8ac73b76/FLAG0f16608c4 [2022-10-17 10:48:15,415 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:48:15,416 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/sv-benchmarks/c/array-fpi/res2f.c [2022-10-17 10:48:15,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/data/dbb7aef38/bf7f5aff6daf4c1e83ebe3fb8ac73b76/FLAG0f16608c4 [2022-10-17 10:48:15,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/data/dbb7aef38/bf7f5aff6daf4c1e83ebe3fb8ac73b76 [2022-10-17 10:48:15,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:48:15,781 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:48:15,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:15,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:48:15,793 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:48:15,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:15" (1/1) ... [2022-10-17 10:48:15,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e93431a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:15, skipping insertion in model container [2022-10-17 10:48:15,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:48:15" (1/1) ... [2022-10-17 10:48:15,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:48:15,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:48:16,036 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_659759e5-6756-4d1a-b3e2-7f54453e4ba9/sv-benchmarks/c/array-fpi/res2f.c[588,601] [2022-10-17 10:48:16,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:16,092 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:48:16,108 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_659759e5-6756-4d1a-b3e2-7f54453e4ba9/sv-benchmarks/c/array-fpi/res2f.c[588,601] [2022-10-17 10:48:16,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:48:16,159 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:48:16,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16 WrapperNode [2022-10-17 10:48:16,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:48:16,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:16,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:48:16,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:48:16,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,221 INFO L138 Inliner]: procedures = 17, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 113 [2022-10-17 10:48:16,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:48:16,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:48:16,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:48:16,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:48:16,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,270 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:48:16,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:48:16,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:48:16,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:48:16,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (1/1) ... [2022-10-17 10:48:16,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:48:16,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:48:16,318 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:48:16,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:48:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:48:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:48:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:48:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:48:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:48:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:48:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:48:16,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:48:16,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:48:16,473 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:48:16,476 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:48:16,673 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:48:16,679 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:48:16,679 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-17 10:48:16,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:16 BoogieIcfgContainer [2022-10-17 10:48:16,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:48:16,684 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:48:16,684 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:48:16,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:48:16,688 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:48:15" (1/3) ... [2022-10-17 10:48:16,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e338094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:48:16, skipping insertion in model container [2022-10-17 10:48:16,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:48:16" (2/3) ... [2022-10-17 10:48:16,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e338094 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:48:16, skipping insertion in model container [2022-10-17 10:48:16,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:16" (3/3) ... [2022-10-17 10:48:16,691 INFO L112 eAbstractionObserver]: Analyzing ICFG res2f.c [2022-10-17 10:48:16,710 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:48:16,710 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:48:16,787 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:48:16,794 INFO L357 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=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@15af9f52, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:48:16,794 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:48:16,799 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 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) [2022-10-17 10:48:16,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:48:16,806 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:48:16,807 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:16,808 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:48:16,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:16,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1780399656, now seen corresponding path program 1 times [2022-10-17 10:48:16,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:16,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948404917] [2022-10-17 10:48:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:16,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:16,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:16,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:16,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:16,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948404917] [2022-10-17 10:48:16,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948404917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:16,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:16,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:48:16,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397468096] [2022-10-17 10:48:16,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:16,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:48:16,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:17,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:48:17,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:48:17,052 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.5714285714285714) internal successors, (44), 29 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) [2022-10-17 10:48:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:17,069 INFO L93 Difference]: Finished difference Result 56 states and 82 transitions. [2022-10-17 10:48:17,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:48:17,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) Word has length 19 [2022-10-17 10:48:17,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:48:17,082 INFO L225 Difference]: With dead ends: 56 [2022-10-17 10:48:17,083 INFO L226 Difference]: Without dead ends: 26 [2022-10-17 10:48:17,101 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:48:17,113 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:48:17,114 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:48:17,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-17 10:48:17,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-10-17 10:48:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.24) internal successors, (31), 25 states have internal predecessors, (31), 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) [2022-10-17 10:48:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-10-17 10:48:17,146 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 19 [2022-10-17 10:48:17,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:48:17,147 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-10-17 10:48:17,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 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) [2022-10-17 10:48:17,147 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-10-17 10:48:17,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:48:17,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:48:17,148 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:17,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:48:17,149 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:48:17,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:17,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1279549768, now seen corresponding path program 1 times [2022-10-17 10:48:17,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:17,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286623571] [2022-10-17 10:48:17,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:17,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:48:17,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:48:17,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:48:17,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286623571] [2022-10-17 10:48:17,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286623571] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:48:17,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:48:17,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:48:17,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607087687] [2022-10-17 10:48:17,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:48:17,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:48:17,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:48:17,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:48:17,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:48:17,412 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2022-10-17 10:48:17,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:48:17,567 INFO L93 Difference]: Finished difference Result 57 states and 72 transitions. [2022-10-17 10:48:17,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:48:17,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) Word has length 19 [2022-10-17 10:48:17,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:48:17,570 INFO L225 Difference]: With dead ends: 57 [2022-10-17 10:48:17,570 INFO L226 Difference]: Without dead ends: 38 [2022-10-17 10:48:17,570 INFO L412 NwaCegarLoop]: 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 [2022-10-17 10:48:17,572 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 39 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:48:17,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 14 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:48:17,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-17 10:48:17,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2022-10-17 10:48:17,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 31 states have internal predecessors, (37), 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) [2022-10-17 10:48:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-10-17 10:48:17,593 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 19 [2022-10-17 10:48:17,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:48:17,593 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-10-17 10:48:17,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 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) [2022-10-17 10:48:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-10-17 10:48:17,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 10:48:17,595 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:48:17,595 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:48:17,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:48:17,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:48:17,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:48:17,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1740145276, now seen corresponding path program 1 times [2022-10-17 10:48:17,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:48:17,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495113621] [2022-10-17 10:48:17,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:48:17,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:48:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:17,718 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-10-17 10:48:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-10-17 10:48:17,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-10-17 10:48:17,837 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-10-17 10:48:17,838 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:48:17,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:48:17,845 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-10-17 10:48:17,850 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:48:17,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:48:17 BoogieIcfgContainer [2022-10-17 10:48:17,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:48:17,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:48:17,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:48:17,914 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:48:17,914 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:48:16" (3/4) ... [2022-10-17 10:48:17,916 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-10-17 10:48:17,968 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_659759e5-6756-4d1a-b3e2-7f54453e4ba9/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:48:17,969 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:48:17,969 INFO L158 Benchmark]: Toolchain (without parser) took 2188.20ms. Allocated memory is still 90.2MB. Free memory was 50.9MB in the beginning and 62.5MB in the end (delta: -11.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:48:17,970 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:48:17,970 INFO L158 Benchmark]: CACSL2BoogieTranslator took 376.10ms. Allocated memory is still 90.2MB. Free memory was 50.7MB in the beginning and 64.7MB in the end (delta: -14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 10:48:17,971 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.12ms. Allocated memory is still 90.2MB. Free memory was 64.4MB in the beginning and 62.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:48:17,972 INFO L158 Benchmark]: Boogie Preprocessor took 54.39ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 61.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 10:48:17,972 INFO L158 Benchmark]: RCFGBuilder took 403.79ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 47.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-10-17 10:48:17,973 INFO L158 Benchmark]: TraceAbstraction took 1229.27ms. Allocated memory is still 90.2MB. Free memory was 47.0MB in the beginning and 65.7MB in the end (delta: -18.6MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-10-17 10:48:17,973 INFO L158 Benchmark]: Witness Printer took 55.53ms. Allocated memory is still 90.2MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:48:17,976 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 90.2MB. Free memory is still 67.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 376.10ms. Allocated memory is still 90.2MB. Free memory was 50.7MB in the beginning and 64.7MB in the end (delta: -14.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.12ms. Allocated memory is still 90.2MB. Free memory was 64.4MB in the beginning and 62.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.39ms. Allocated memory is still 90.2MB. Free memory was 62.8MB in the beginning and 61.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.79ms. Allocated memory is still 90.2MB. Free memory was 61.2MB in the beginning and 47.8MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1229.27ms. Allocated memory is still 90.2MB. Free memory was 47.0MB in the beginning and 65.7MB in the end (delta: -18.6MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. * Witness Printer took 55.53ms. Allocated memory is still 90.2MB. Free memory was 65.7MB in the beginning and 62.5MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L31] int *c = malloc(sizeof(int)*N); [L33] sum[0] = 1 [L34] i=0 VAL [a={-3:0}, b={5:0}, c={-2:0}, i=0, N=1, sum={7:0}] [L34] COND TRUE i