./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/brs5f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/brs5f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0 --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 3f54bfe272f098fc8d49d4d1aeeacd60f3c02b9f503aca7cdfa86fa26e25ba9c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 14:52:59,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 14:52:59,263 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 14:52:59,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 14:52:59,294 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 14:52:59,295 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 14:52:59,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 14:52:59,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 14:52:59,301 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 14:52:59,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 14:52:59,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 14:52:59,305 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 14:52:59,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 14:52:59,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 14:52:59,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 14:52:59,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 14:52:59,311 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 14:52:59,312 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 14:52:59,314 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 14:52:59,316 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 14:52:59,318 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 14:52:59,320 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 14:52:59,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 14:52:59,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 14:52:59,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 14:52:59,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 14:52:59,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 14:52:59,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 14:52:59,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 14:52:59,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 14:52:59,330 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 14:52:59,331 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 14:52:59,332 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 14:52:59,333 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 14:52:59,334 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 14:52:59,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 14:52:59,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 14:52:59,336 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 14:52:59,336 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 14:52:59,337 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 14:52:59,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 14:52:59,339 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 14:52:59,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 14:52:59,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 14:52:59,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 14:52:59,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 14:52:59,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 14:52:59,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 14:52:59,366 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 14:52:59,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 14:52:59,367 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 14:52:59,367 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 14:52:59,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 14:52:59,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 14:52:59,368 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 14:52:59,368 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 14:52:59,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 14:52:59,369 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 14:52:59,369 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 14:52:59,369 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 14:52:59,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 14:52:59,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 14:52:59,370 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 14:52:59,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 14:52:59,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:52:59,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 14:52:59,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 14:52:59,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 14:52:59,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 14:52:59,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 14:52:59,373 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 14:52:59,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 14:52:59,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 14:52:59,374 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 14:52:59,374 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_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f54bfe272f098fc8d49d4d1aeeacd60f3c02b9f503aca7cdfa86fa26e25ba9c [2021-11-22 14:52:59,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 14:52:59,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 14:52:59,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 14:52:59,656 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 14:52:59,657 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 14:52:59,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/array-fpi/brs5f.c [2021-11-22 14:52:59,743 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/data/26aa7c38d/b06f906bbb904ee09b2c6685f067995e/FLAGd8351824f [2021-11-22 14:53:00,159 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 14:53:00,159 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/sv-benchmarks/c/array-fpi/brs5f.c [2021-11-22 14:53:00,166 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/data/26aa7c38d/b06f906bbb904ee09b2c6685f067995e/FLAGd8351824f [2021-11-22 14:53:00,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/data/26aa7c38d/b06f906bbb904ee09b2c6685f067995e [2021-11-22 14:53:00,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 14:53:00,546 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 14:53:00,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 14:53:00,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 14:53:00,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 14:53:00,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5284d418 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00, skipping insertion in model container [2021-11-22 14:53:00,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 14:53:00,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 14:53:00,795 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_fe8873da-12e0-4f09-94af-f4cf4389ea6b/sv-benchmarks/c/array-fpi/brs5f.c[588,601] [2021-11-22 14:53:00,815 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:53:00,822 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 14:53:00,833 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_fe8873da-12e0-4f09-94af-f4cf4389ea6b/sv-benchmarks/c/array-fpi/brs5f.c[588,601] [2021-11-22 14:53:00,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 14:53:00,854 INFO L208 MainTranslator]: Completed translation [2021-11-22 14:53:00,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00 WrapperNode [2021-11-22 14:53:00,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 14:53:00,855 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 14:53:00,855 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 14:53:00,856 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 14:53:00,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,889 INFO L137 Inliner]: procedures = 17, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2021-11-22 14:53:00,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 14:53:00,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 14:53:00,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 14:53:00,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 14:53:00,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,911 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 14:53:00,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 14:53:00,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 14:53:00,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 14:53:00,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (1/1) ... [2021-11-22 14:53:00,923 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 14:53:00,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 14:53:00,957 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 14:53:00,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 14:53:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 14:53:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 14:53:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-22 14:53:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-22 14:53:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-22 14:53:01,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 14:53:01,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 14:53:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-22 14:53:01,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-22 14:53:01,099 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 14:53:01,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 14:53:01,317 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 14:53:01,323 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 14:53:01,323 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-22 14:53:01,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:53:01 BoogieIcfgContainer [2021-11-22 14:53:01,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 14:53:01,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 14:53:01,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 14:53:01,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 14:53:01,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:53:00" (1/3) ... [2021-11-22 14:53:01,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e458531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:53:01, skipping insertion in model container [2021-11-22 14:53:01,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:53:00" (2/3) ... [2021-11-22 14:53:01,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e458531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:53:01, skipping insertion in model container [2021-11-22 14:53:01,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:53:01" (3/3) ... [2021-11-22 14:53:01,341 INFO L111 eAbstractionObserver]: Analyzing ICFG brs5f.c [2021-11-22 14:53:01,345 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 14:53:01,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-22 14:53:01,405 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 14:53:01,412 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=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 14:53:01,412 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-22 14:53:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:53:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:53:01,432 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:53:01,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:53:01,433 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:53:01,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:53:01,439 INFO L85 PathProgramCache]: Analyzing trace with hash 361760665, now seen corresponding path program 1 times [2021-11-22 14:53:01,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:53:01,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33611388] [2021-11-22 14:53:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:53:01,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:53:01,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:53:01,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:53:01,643 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:53:01,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33611388] [2021-11-22 14:53:01,645 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33611388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:53:01,645 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:53:01,645 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 14:53:01,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852329548] [2021-11-22 14:53:01,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:53:01,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 14:53:01,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:53:01,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 14:53:01,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 14:53:01,693 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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 5.5) internal successors, (11), 2 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) [2021-11-22 14:53:01,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:53:01,709 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-11-22 14:53:01,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 14:53:01,712 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) Word has length 11 [2021-11-22 14:53:01,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:53:01,720 INFO L225 Difference]: With dead ends: 36 [2021-11-22 14:53:01,720 INFO L226 Difference]: Without dead ends: 16 [2021-11-22 14:53:01,723 INFO L932 BasicCegarLoop]: 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 [2021-11-22 14:53:01,728 INFO L933 BasicCegarLoop]: 24 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, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 14:53:01,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 14:53:01,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-22 14:53:01,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-22 14:53:01,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 15 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:53:01,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2021-11-22 14:53:01,761 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2021-11-22 14:53:01,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:53:01,762 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2021-11-22 14:53:01,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2021-11-22 14:53:01,763 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2021-11-22 14:53:01,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-22 14:53:01,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:53:01,764 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:53:01,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 14:53:01,765 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:53:01,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:53:01,769 INFO L85 PathProgramCache]: Analyzing trace with hash -447913662, now seen corresponding path program 1 times [2021-11-22 14:53:01,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:53:01,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572995257] [2021-11-22 14:53:01,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:53:01,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:53:01,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 14:53:01,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 14:53:01,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 14:53:01,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572995257] [2021-11-22 14:53:01,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572995257] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 14:53:01,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 14:53:01,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-22 14:53:01,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068753585] [2021-11-22 14:53:01,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 14:53:01,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-22 14:53:01,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 14:53:01,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-22 14:53:01,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:53:01,905 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2021-11-22 14:53:01,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 14:53:01,982 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2021-11-22 14:53:01,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-22 14:53:01,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) Word has length 11 [2021-11-22 14:53:01,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 14:53:01,984 INFO L225 Difference]: With dead ends: 33 [2021-11-22 14:53:01,984 INFO L226 Difference]: Without dead ends: 22 [2021-11-22 14:53:01,989 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-22 14:53:01,991 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 17 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-22 14:53:01,991 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 12 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-22 14:53:01,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-22 14:53:02,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2021-11-22 14:53:02,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 14:53:02,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-22 14:53:02,004 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 11 [2021-11-22 14:53:02,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 14:53:02,005 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-22 14:53:02,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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) [2021-11-22 14:53:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-22 14:53:02,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 14:53:02,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 14:53:02,009 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-22 14:53:02,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 14:53:02,010 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 14:53:02,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 14:53:02,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1044113915, now seen corresponding path program 1 times [2021-11-22 14:53:02,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 14:53:02,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608172980] [2021-11-22 14:53:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 14:53:02,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 14:53:02,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:53:02,091 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 14:53:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 14:53:02,152 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 14:53:02,152 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 14:53:02,174 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-22 14:53:02,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-22 14:53:02,180 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-22 14:53:02,183 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 14:53:02,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:53:02 BoogieIcfgContainer [2021-11-22 14:53:02,212 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 14:53:02,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 14:53:02,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 14:53:02,213 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 14:53:02,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:53:01" (3/4) ... [2021-11-22 14:53:02,235 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 14:53:02,275 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe8873da-12e0-4f09-94af-f4cf4389ea6b/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 14:53:02,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 14:53:02,276 INFO L158 Benchmark]: Toolchain (without parser) took 1729.38ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 62.8MB in the beginning and 114.1MB in the end (delta: -51.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:53:02,276 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:53:02,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 301.33ms. Allocated memory is still 104.9MB. Free memory was 62.6MB in the beginning and 77.9MB in the end (delta: -15.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-22 14:53:02,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.82ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 14:53:02,278 INFO L158 Benchmark]: Boogie Preprocessor took 24.59ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 14:53:02,278 INFO L158 Benchmark]: RCFGBuilder took 409.89ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 64.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 14:53:02,279 INFO L158 Benchmark]: TraceAbstraction took 885.36ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 64.0MB in the beginning and 113.9MB in the end (delta: -49.9MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2021-11-22 14:53:02,279 INFO L158 Benchmark]: Witness Printer took 62.90ms. Allocated memory is still 140.5MB. Free memory was 113.8MB in the beginning and 114.1MB in the end (delta: -210.0kB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2021-11-22 14:53:02,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 301.33ms. Allocated memory is still 104.9MB. Free memory was 62.6MB in the beginning and 77.9MB in the end (delta: -15.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.82ms. Allocated memory is still 104.9MB. Free memory was 77.9MB in the beginning and 76.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.59ms. Allocated memory is still 104.9MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 409.89ms. Allocated memory is still 104.9MB. Free memory was 74.9MB in the beginning and 64.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 885.36ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 64.0MB in the beginning and 113.9MB in the end (delta: -49.9MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * Witness Printer took 62.90ms. Allocated memory is still 140.5MB. Free memory was 113.8MB in the beginning and 114.1MB in the end (delta: -210.0kB). Peak memory consumption was 4.9MB. 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); [L31] i=0 VAL [a={-1:0}, i=0, N=1, sum={7:0}] [L31] COND TRUE i