./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector-regression/signextension2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector-regression/signextension2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f55631880498cb5413deabbfbce35cfd825fe7b4c570de963a68b466888b738a .................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 06:16:20,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 06:16:20,449 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 06:16:20,506 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 06:16:20,507 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 06:16:20,508 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 06:16:20,510 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 06:16:20,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 06:16:20,516 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 06:16:20,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 06:16:20,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 06:16:20,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 06:16:20,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 06:16:20,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 06:16:20,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 06:16:20,527 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 06:16:20,528 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 06:16:20,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 06:16:20,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 06:16:20,535 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 06:16:20,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 06:16:20,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 06:16:20,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 06:16:20,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 06:16:20,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 06:16:20,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 06:16:20,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 06:16:20,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 06:16:20,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 06:16:20,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 06:16:20,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 06:16:20,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 06:16:20,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 06:16:20,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 06:16:20,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 06:16:20,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 06:16:20,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 06:16:20,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 06:16:20,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 06:16:20,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 06:16:20,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 06:16:20,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 06:16:20,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 06:16:20,590 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 06:16:20,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 06:16:20,592 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 06:16:20,592 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 06:16:20,592 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 06:16:20,593 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 06:16:20,593 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 06:16:20,593 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 06:16:20,593 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 06:16:20,594 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 06:16:20,594 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 06:16:20,594 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 06:16:20,594 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 06:16:20,595 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 06:16:20,596 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 06:16:20,596 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 06:16:20,596 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 06:16:20,596 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 06:16:20,596 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 06:16:20,597 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 06:16:20,597 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 06:16:20,597 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 06:16:20,597 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 06:16:20,598 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 06:16:20,598 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 06:16:20,598 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 06:16:20,598 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 06:16:20,599 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 06:16:20,599 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 06:16:20,599 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:16:20,599 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 06:16:20,600 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 06:16:20,600 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 06:16:20,600 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 06:16:20,600 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 06:16:20,601 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 06:16:20,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 06:16:20,601 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 06:16:20,601 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f55631880498cb5413deabbfbce35cfd825fe7b4c570de963a68b466888b738a [2021-10-20 06:16:20,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 06:16:20,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 06:16:20,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 06:16:20,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 06:16:20,994 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 06:16:20,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/bitvector-regression/signextension2-2.c [2021-10-20 06:16:21,080 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/data/c74c9e86d/54c8cf2b005b440c91b86aadea462b63/FLAG223b602f0 [2021-10-20 06:16:21,700 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 06:16:21,701 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/sv-benchmarks/c/bitvector-regression/signextension2-2.c [2021-10-20 06:16:21,708 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/data/c74c9e86d/54c8cf2b005b440c91b86aadea462b63/FLAG223b602f0 [2021-10-20 06:16:22,054 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/data/c74c9e86d/54c8cf2b005b440c91b86aadea462b63 [2021-10-20 06:16:22,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 06:16:22,062 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 06:16:22,066 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 06:16:22,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 06:16:22,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 06:16:22,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de44126 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22, skipping insertion in model container [2021-10-20 06:16:22,075 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 06:16:22,096 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 06:16:22,274 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/sv-benchmarks/c/bitvector-regression/signextension2-2.c[589,602] [2021-10-20 06:16:22,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:16:22,287 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 06:16:22,306 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/sv-benchmarks/c/bitvector-regression/signextension2-2.c[589,602] [2021-10-20 06:16:22,308 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 06:16:22,320 INFO L208 MainTranslator]: Completed translation [2021-10-20 06:16:22,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22 WrapperNode [2021-10-20 06:16:22,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 06:16:22,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 06:16:22,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 06:16:22,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 06:16:22,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,355 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 06:16:22,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 06:16:22,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 06:16:22,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 06:16:22,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,386 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 06:16:22,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 06:16:22,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 06:16:22,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 06:16:22,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (1/1) ... [2021-10-20 06:16:22,403 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 06:16:22,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 06:16:22,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 06:16:22,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 06:16:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 06:16:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 06:16:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 06:16:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 06:16:22,717 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 06:16:22,718 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-20 06:16:22,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:22 BoogieIcfgContainer [2021-10-20 06:16:22,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 06:16:22,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 06:16:22,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 06:16:22,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 06:16:22,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:16:22" (1/3) ... [2021-10-20 06:16:22,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f741b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:22, skipping insertion in model container [2021-10-20 06:16:22,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:16:22" (2/3) ... [2021-10-20 06:16:22,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74f741b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:16:22, skipping insertion in model container [2021-10-20 06:16:22,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:22" (3/3) ... [2021-10-20 06:16:22,743 INFO L111 eAbstractionObserver]: Analyzing ICFG signextension2-2.c [2021-10-20 06:16:22,751 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 06:16:22,751 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 06:16:22,813 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 06:16:22,822 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-20 06:16:22,822 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 06:16:22,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 06:16:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-20 06:16:22,840 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 06:16:22,841 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-20 06:16:22,842 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 06:16:22,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 06:16:22,849 INFO L82 PathProgramCache]: Analyzing trace with hash 43409, now seen corresponding path program 1 times [2021-10-20 06:16:22,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 06:16:22,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947534488] [2021-10-20 06:16:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 06:16:22,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 06:16:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 06:16:23,024 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 06:16:23,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 06:16:23,085 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-20 06:16:23,087 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 06:16:23,088 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 06:16:23,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 06:16:23,097 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 06:16:23,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:16:23 BoogieIcfgContainer [2021-10-20 06:16:23,120 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 06:16:23,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 06:16:23,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 06:16:23,124 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 06:16:23,124 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:16:22" (3/4) ... [2021-10-20 06:16:23,126 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 06:16:23,178 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 06:16:23,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 06:16:23,181 INFO L168 Benchmark]: Toolchain (without parser) took 1117.29 ms. Allocated memory is still 119.5 MB. Free memory was 83.2 MB in the beginning and 67.0 MB in the end (delta: 16.2 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-20 06:16:23,181 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 90.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:16:23,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.19 ms. Allocated memory is still 119.5 MB. Free memory was 82.9 MB in the beginning and 94.3 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 06:16:23,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.12 ms. Allocated memory is still 119.5 MB. Free memory was 94.3 MB in the beginning and 92.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:16:23,187 INFO L168 Benchmark]: Boogie Preprocessor took 32.29 ms. Allocated memory is still 119.5 MB. Free memory was 92.8 MB in the beginning and 92.2 MB in the end (delta: 623.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 06:16:23,190 INFO L168 Benchmark]: RCFGBuilder took 342.49 ms. Allocated memory is still 119.5 MB. Free memory was 92.2 MB in the beginning and 82.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 06:16:23,191 INFO L168 Benchmark]: TraceAbstraction took 386.70 ms. Allocated memory is still 119.5 MB. Free memory was 81.6 MB in the beginning and 68.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 06:16:23,192 INFO L168 Benchmark]: Witness Printer took 55.68 ms. Allocated memory is still 119.5 MB. Free memory was 68.5 MB in the beginning and 67.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 06:16:23,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 119.5 MB. Free memory was 90.3 MB in the beginning and 90.3 MB in the end (delta: 21.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.19 ms. Allocated memory is still 119.5 MB. Free memory was 82.9 MB in the beginning and 94.3 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.12 ms. Allocated memory is still 119.5 MB. Free memory was 94.3 MB in the beginning and 92.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.29 ms. Allocated memory is still 119.5 MB. Free memory was 92.8 MB in the beginning and 92.2 MB in the end (delta: 623.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 342.49 ms. Allocated memory is still 119.5 MB. Free memory was 92.2 MB in the beginning and 82.2 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 386.70 ms. Allocated memory is still 119.5 MB. Free memory was 81.6 MB in the beginning and 68.5 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 55.68 ms. Allocated memory is still 119.5 MB. Free memory was 68.5 MB in the beginning and 67.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 19]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L6] unsigned int allOne = -1; [L8] int castToInt = allOne; [L9] long castToLong = allOne; [L10] long castToLong2 = castToInt; [L11] unsigned long castToULong = allOne; [L13-L14] COND TRUE castToInt == -1 && castToLong == 4294967295UL && castToLong2 == -1 && castToULong == 4294967295UL [L19] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 284.3ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.8ms SsaConstructionTime, 84.9ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-20 06:16:23,249 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_96074d69-6a84-4ca7-8601-ea8ceaf2675e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...