./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 5b0af5d1e81b8ef08a8c715e25cc88665897ce7d17ecd1eab38dd9c44cbe0a9d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:55:06,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:55:06,339 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 13:55:06,343 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:55:06,344 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:55:06,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:55:06,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:55:06,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:55:06,367 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:55:06,368 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:55:06,368 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:55:06,369 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:55:06,369 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:55:06,370 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:55:06,370 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:55:06,371 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:55:06,371 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:55:06,372 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:55:06,372 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:55:06,373 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:55:06,373 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:55:06,374 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:55:06,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:55:06,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:55:06,375 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:55:06,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:55:06,376 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:55:06,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:55:06,377 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:55:06,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:55:06,377 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:55:06,378 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:55:06,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:55:06,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:55:06,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:06,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:55:06,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:55:06,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:55:06,379 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:55:06,379 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:55:06,379 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:55:06,380 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:55:06,380 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:55:06,380 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:55:06,380 INFO L153 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_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b0af5d1e81b8ef08a8c715e25cc88665897ce7d17ecd1eab38dd9c44cbe0a9d [2023-12-02 13:55:06,597 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:55:06,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:55:06,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:55:06,645 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:55:06,646 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:55:06,647 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2023-12-02 13:55:09,397 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:55:09,690 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:55:09,690 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2023-12-02 13:55:09,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data/915ece2a5/54765838fa4646cf803571763f07bb61/FLAG919e3c4dd [2023-12-02 13:55:09,724 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data/915ece2a5/54765838fa4646cf803571763f07bb61 [2023-12-02 13:55:09,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:55:09,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:55:09,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:09,730 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:55:09,735 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:55:09,735 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:09" (1/1) ... [2023-12-02 13:55:09,736 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ca473bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:09, skipping insertion in model container [2023-12-02 13:55:09,736 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:09" (1/1) ... [2023-12-02 13:55:09,812 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:55:10,006 WARN L240 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_87e0580f-a2fd-48f6-9632-7fcf9df97a47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1260,1273] [2023-12-02 13:55:10,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:10,349 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:55:10,361 WARN L240 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_87e0580f-a2fd-48f6-9632-7fcf9df97a47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1260,1273] [2023-12-02 13:55:10,506 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:10,520 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:55:10,521 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10 WrapperNode [2023-12-02 13:55:10,521 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:10,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:10,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:55:10,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:55:10,530 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:10,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,087 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5129 [2023-12-02 13:55:11,088 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:11,089 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:55:11,089 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:55:11,089 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:55:11,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,225 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,364 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,428 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,515 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,587 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:55:11,588 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:55:11,588 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:55:11,588 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:55:11,589 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (1/1) ... [2023-12-02 13:55:11,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:11,603 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:55:11,616 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:55:11,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:55:11,644 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:55:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:55:11,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:55:11,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:55:12,032 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:55:12,034 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:55:15,371 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:55:22,649 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:55:22,649 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:55:22,650 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:22 BoogieIcfgContainer [2023-12-02 13:55:22,650 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:55:22,652 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:55:22,652 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:55:22,654 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:55:22,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:55:09" (1/3) ... [2023-12-02 13:55:22,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d716d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:22, skipping insertion in model container [2023-12-02 13:55:22,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:10" (2/3) ... [2023-12-02 13:55:22,655 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12d716d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:22, skipping insertion in model container [2023-12-02 13:55:22,655 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:22" (3/3) ... [2023-12-02 13:55:22,656 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2023-12-02 13:55:22,672 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:55:22,672 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:55:22,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:55:22,719 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@62a7a92a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:55:22,719 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:55:22,723 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:55:22,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:55:22,727 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:22,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:55:22,728 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:55:22,732 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:22,732 INFO L85 PathProgramCache]: Analyzing trace with hash 174532811, now seen corresponding path program 1 times [2023-12-02 13:55:22,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:55:22,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128093465] [2023-12-02 13:55:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:22,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:55:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:55:23,116 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-02 13:55:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-02 13:55:23,280 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-12-02 13:55:23,282 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-02 13:55:23,283 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-02 13:55:23,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:55:23,290 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-12-02 13:55:23,294 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-12-02 13:55:23,321 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-12-02 13:55:23,332 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 01:55:23 BoogieIcfgContainer [2023-12-02 13:55:23,332 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-02 13:55:23,333 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 13:55:23,333 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 13:55:23,333 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 13:55:23,334 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:22" (3/4) ... [2023-12-02 13:55:23,336 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-02 13:55:23,337 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 13:55:23,338 INFO L158 Benchmark]: Toolchain (without parser) took 13609.91ms. Allocated memory was 140.5MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 100.9MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 347.8MB. Max. memory is 16.1GB. [2023-12-02 13:55:23,339 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:55:23,339 INFO L158 Benchmark]: CACSL2BoogieTranslator took 791.86ms. Allocated memory is still 140.5MB. Free memory was 100.6MB in the beginning and 61.6MB in the end (delta: 39.0MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. [2023-12-02 13:55:23,340 INFO L158 Benchmark]: Boogie Procedure Inliner took 566.03ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 61.6MB in the beginning and 57.8MB in the end (delta: 3.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. [2023-12-02 13:55:23,341 INFO L158 Benchmark]: Boogie Preprocessor took 498.67ms. Allocated memory was 169.9MB in the beginning and 270.5MB in the end (delta: 100.7MB). Free memory was 57.8MB in the beginning and 130.4MB in the end (delta: -72.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-02 13:55:23,342 INFO L158 Benchmark]: RCFGBuilder took 11062.23ms. Allocated memory was 270.5MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 130.4MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 741.4MB. Max. memory is 16.1GB. [2023-12-02 13:55:23,342 INFO L158 Benchmark]: TraceAbstraction took 680.35ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. [2023-12-02 13:55:23,343 INFO L158 Benchmark]: Witness Printer took 4.16ms. Allocated memory is still 1.6GB. Free memory is still 1.2GB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 13:55:23,346 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 107.0MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 791.86ms. Allocated memory is still 140.5MB. Free memory was 100.6MB in the beginning and 61.6MB in the end (delta: 39.0MB). Peak memory consumption was 42.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 566.03ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 61.6MB in the beginning and 57.8MB in the end (delta: 3.8MB). Peak memory consumption was 81.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 498.67ms. Allocated memory was 169.9MB in the beginning and 270.5MB in the end (delta: 100.7MB). Free memory was 57.8MB in the beginning and 130.4MB in the end (delta: -72.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * RCFGBuilder took 11062.23ms. Allocated memory was 270.5MB in the beginning and 1.6GB in the end (delta: 1.3GB). Free memory was 130.4MB in the beginning and 1.2GB in the end (delta: -1.1GB). Peak memory consumption was 741.4MB. Max. memory is 16.1GB. * TraceAbstraction took 680.35ms. Allocated memory is still 1.6GB. Free memory was 1.2GB in the beginning and 1.2GB in the end (delta: 65.0MB). Peak memory consumption was 65.0MB. Max. memory is 16.1GB. * Witness Printer took 4.16ms. Allocated memory is still 1.6GB. Free memory is still 1.2GB. There was no memory consumed. 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 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 193. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L32] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 12); [L33] const SORT_38 msb_SORT_38 = (SORT_38)1 << (12 - 1); [L35] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 3); [L36] const SORT_44 msb_SORT_44 = (SORT_44)1 << (3 - 1); [L38] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 2); [L39] const SORT_71 msb_SORT_71 = (SORT_71)1 << (2 - 1); [L41] const SORT_230 mask_SORT_230 = (SORT_230)-1 >> (sizeof(SORT_230) * 8 - 4); [L42] const SORT_230 msb_SORT_230 = (SORT_230)1 << (4 - 1); [L44] const SORT_232 mask_SORT_232 = (SORT_232)-1 >> (sizeof(SORT_232) * 8 - 5); [L45] const SORT_232 msb_SORT_232 = (SORT_232)1 << (5 - 1); [L47] const SORT_234 mask_SORT_234 = (SORT_234)-1 >> (sizeof(SORT_234) * 8 - 6); [L48] const SORT_234 msb_SORT_234 = (SORT_234)1 << (6 - 1); [L50] const SORT_236 mask_SORT_236 = (SORT_236)-1 >> (sizeof(SORT_236) * 8 - 7); [L51] const SORT_236 msb_SORT_236 = (SORT_236)1 << (7 - 1); [L53] const SORT_238 mask_SORT_238 = (SORT_238)-1 >> (sizeof(SORT_238) * 8 - 8); [L54] const SORT_238 msb_SORT_238 = (SORT_238)1 << (8 - 1); [L56] const SORT_240 mask_SORT_240 = (SORT_240)-1 >> (sizeof(SORT_240) * 8 - 9); [L57] const SORT_240 msb_SORT_240 = (SORT_240)1 << (9 - 1); [L59] const SORT_242 mask_SORT_242 = (SORT_242)-1 >> (sizeof(SORT_242) * 8 - 10); [L60] const SORT_242 msb_SORT_242 = (SORT_242)1 << (10 - 1); [L62] const SORT_244 mask_SORT_244 = (SORT_244)-1 >> (sizeof(SORT_244) * 8 - 11); [L63] const SORT_244 msb_SORT_244 = (SORT_244)1 << (11 - 1); [L65] const SORT_247 mask_SORT_247 = (SORT_247)-1 >> (sizeof(SORT_247) * 8 - 13); [L66] const SORT_247 msb_SORT_247 = (SORT_247)1 << (13 - 1); [L68] const SORT_249 mask_SORT_249 = (SORT_249)-1 >> (sizeof(SORT_249) * 8 - 14); [L69] const SORT_249 msb_SORT_249 = (SORT_249)1 << (14 - 1); [L71] const SORT_251 mask_SORT_251 = (SORT_251)-1 >> (sizeof(SORT_251) * 8 - 15); [L72] const SORT_251 msb_SORT_251 = (SORT_251)1 << (15 - 1); [L74] const SORT_460 mask_SORT_460 = (SORT_460)-1 >> (sizeof(SORT_460) * 8 - 17); [L75] const SORT_460 msb_SORT_460 = (SORT_460)1 << (17 - 1); [L77] const SORT_3 var_6 = 0; [L78] const SORT_1 var_11 = 0; [L79] const SORT_1 var_22 = 1; [L80] const SORT_38 var_39 = 0; [L81] const SORT_44 var_45 = 0; [L82] const SORT_44 var_49 = 2; [L83] const SORT_44 var_53 = 1; [L84] const SORT_44 var_58 = 4; [L85] const SORT_44 var_60 = 5; [L86] const SORT_44 var_64 = 3; [L87] const SORT_71 var_73 = 0; [L88] const SORT_3 var_80 = 65535; [L89] const SORT_232 var_461 = 0; [L90] const SORT_236 var_507 = 5; [L91] const SORT_236 var_511 = 4; [L92] const SORT_236 var_515 = 3; [L93] const SORT_236 var_519 = 2; [L94] const SORT_236 var_523 = 1; [L95] const SORT_236 var_527 = 0; [L96] const SORT_38 var_561 = 2; [L98] SORT_1 input_2; [L99] SORT_3 input_4; [L100] SORT_3 input_5; [L101] SORT_3 input_68; [L102] SORT_3 input_69; [L103] SORT_3 input_70; [L104] SORT_3 input_79; [L105] SORT_3 input_88; [L106] SORT_3 input_89; [L107] SORT_3 input_90; [L108] SORT_3 input_93; [L109] SORT_3 input_111; [L110] SORT_3 input_112; [L111] SORT_3 input_113; [L112] SORT_3 input_116; [L113] SORT_3 input_118; [L114] SORT_71 input_132; [L115] SORT_71 input_133; [L116] SORT_71 input_134; [L118] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L118] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L119] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L119] SORT_3 state_9 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L120] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L120] SORT_3 state_13 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L121] SORT_3 state_15 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L122] SORT_3 state_26 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L123] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L123] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L124] SORT_3 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L125] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L125] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L126] SORT_3 state_34 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L127] EXPR __VERIFIER_nondet_ushort() & mask_SORT_3 [L127] SORT_3 state_36 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L128] EXPR __VERIFIER_nondet_ushort() & mask_SORT_38 [L128] SORT_38 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_38; [L129] EXPR __VERIFIER_nondet_ushort() & mask_SORT_38 [L129] SORT_38 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_38; [L130] EXPR __VERIFIER_nondet_uchar() & mask_SORT_44 [L130] SORT_44 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_44; [L132] SORT_3 init_8_arg_1 = var_6; [L133] state_7 = init_8_arg_1 [L134] SORT_3 init_10_arg_1 = var_6; [L135] state_9 = init_10_arg_1 [L136] SORT_3 init_14_arg_1 = var_6; [L137] state_13 = init_14_arg_1 [L138] SORT_3 init_16_arg_1 = var_6; [L139] state_15 = init_16_arg_1 [L140] SORT_3 init_27_arg_1 = var_6; [L141] state_26 = init_27_arg_1 [L142] SORT_3 init_29_arg_1 = var_6; [L143] state_28 = init_29_arg_1 [L144] SORT_3 init_31_arg_1 = var_6; [L145] state_30 = init_31_arg_1 [L146] SORT_1 init_33_arg_1 = var_11; [L147] state_32 = init_33_arg_1 [L148] SORT_3 init_35_arg_1 = var_6; [L149] state_34 = init_35_arg_1 [L150] SORT_3 init_37_arg_1 = var_6; [L151] state_36 = init_37_arg_1 [L152] SORT_38 init_41_arg_1 = var_39; [L153] state_40 = init_41_arg_1 [L154] SORT_38 init_43_arg_1 = var_39; [L155] state_42 = init_43_arg_1 [L156] SORT_44 init_47_arg_1 = var_45; [L157] state_46 = init_47_arg_1 VAL [init_10_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_230=15, mask_SORT_232=31, mask_SORT_234=63, mask_SORT_236=127, mask_SORT_238=255, mask_SORT_240=511, mask_SORT_242=1023, mask_SORT_244=2047, mask_SORT_247=8191, mask_SORT_249=16383, mask_SORT_251=32767, mask_SORT_38=4095, mask_SORT_3=65535, mask_SORT_44=7, mask_SORT_460=131071, mask_SORT_71=3, msb_SORT_1=1, msb_SORT_230=8, msb_SORT_232=16, msb_SORT_234=32, msb_SORT_236=64, msb_SORT_238=128, msb_SORT_240=256, msb_SORT_242=512, msb_SORT_244=1024, msb_SORT_247=4096, msb_SORT_249=8192, msb_SORT_251=16384, msb_SORT_38=2048, msb_SORT_3=32768, msb_SORT_44=4, msb_SORT_460=65536, msb_SORT_71=2, state_13=0, state_15=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_40=0, state_42=0, state_46=0, state_7=0, state_9=0, var_11=0, var_22=1, var_39=0, var_45=0, var_461=0, var_49=2, var_507=5, var_511=4, var_515=3, var_519=2, var_523=1, var_527=0, var_53=1, var_561=2, var_58=4, var_60=5, var_64=3, var_6=0, var_73=0, var_80=65535] [L160] input_2 = __VERIFIER_nondet_uchar() [L161] input_4 = __VERIFIER_nondet_ushort() [L162] input_5 = __VERIFIER_nondet_ushort() [L163] input_68 = __VERIFIER_nondet_ushort() [L164] input_69 = __VERIFIER_nondet_ushort() [L165] input_70 = __VERIFIER_nondet_ushort() [L166] input_79 = __VERIFIER_nondet_ushort() [L167] input_88 = __VERIFIER_nondet_ushort() [L168] input_89 = __VERIFIER_nondet_ushort() [L169] input_90 = __VERIFIER_nondet_ushort() [L170] input_93 = __VERIFIER_nondet_ushort() [L171] input_111 = __VERIFIER_nondet_ushort() [L172] input_112 = __VERIFIER_nondet_ushort() [L173] input_113 = __VERIFIER_nondet_ushort() [L174] input_116 = __VERIFIER_nondet_ushort() [L175] input_118 = __VERIFIER_nondet_ushort() [L176] input_132 = __VERIFIER_nondet_uchar() [L177] input_133 = __VERIFIER_nondet_uchar() [L178] input_134 = __VERIFIER_nondet_uchar() [L181] SORT_1 var_17_arg_0 = var_11; [L182] SORT_3 var_17_arg_1 = state_15; [L183] SORT_3 var_17_arg_2 = state_13; [L184] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L185] SORT_1 var_12_arg_0 = var_11; [L186] SORT_3 var_12_arg_1 = state_9; [L187] SORT_3 var_12_arg_2 = state_7; [L188] SORT_3 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L189] SORT_1 var_18_arg_0 = var_11; [L190] SORT_3 var_18_arg_1 = var_17; [L191] SORT_3 var_18_arg_2 = var_12; [L192] SORT_3 var_18 = var_18_arg_0 ? var_18_arg_1 : var_18_arg_2; [L193] EXPR var_18 & mask_SORT_3 [L193] var_18 = var_18 & mask_SORT_3 [L194] SORT_3 var_19_arg_0 = var_18; [L195] SORT_3 var_19_arg_1 = var_6; [L196] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L197] SORT_1 var_23_arg_0 = var_19; [L198] SORT_1 var_23 = ~var_23_arg_0; [L199] SORT_1 var_24_arg_0 = var_22; [L200] SORT_1 var_24_arg_1 = var_23; [L201] EXPR var_24_arg_0 & var_24_arg_1 [L201] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L202] EXPR var_24 & mask_SORT_1 [L202] var_24 = var_24 & mask_SORT_1 [L203] SORT_1 bad_25_arg_0 = var_24; [L204] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 could not prove your program: unable to determine feasibility of some traces [2023-12-02 13:55:23,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 64bit --witnessprinter.graph.data.programhash 5b0af5d1e81b8ef08a8c715e25cc88665897ce7d17ecd1eab38dd9c44cbe0a9d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:55:25,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:55:25,534 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-12-02 13:55:25,539 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:55:25,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:55:25,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:55:25,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:55:25,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:55:25,570 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:55:25,571 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:55:25,571 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:55:25,572 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:55:25,573 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:55:25,573 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:55:25,574 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:55:25,574 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:55:25,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:55:25,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:55:25,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:55:25,577 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:55:25,577 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:55:25,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:55:25,578 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 13:55:25,579 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 13:55:25,579 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 13:55:25,580 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:55:25,580 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:55:25,581 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:55:25,581 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-02 13:55:25,582 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:55:25,582 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:55:25,582 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:25,583 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:55:25,583 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:55:25,583 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:55:25,584 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 13:55:25,584 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 13:55:25,584 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:55:25,584 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:55:25,584 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:55:25,585 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:55:25,585 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b0af5d1e81b8ef08a8c715e25cc88665897ce7d17ecd1eab38dd9c44cbe0a9d [2023-12-02 13:55:25,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:55:25,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:55:25,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:55:25,887 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:55:25,888 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:55:25,889 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2023-12-02 13:55:28,658 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:55:28,974 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:55:28,975 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2023-12-02 13:55:28,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data/a9982d496/a0c5d35c977546bc9d9f9abf56e9d083/FLAG3ddebe95d [2023-12-02 13:55:29,007 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/data/a9982d496/a0c5d35c977546bc9d9f9abf56e9d083 [2023-12-02 13:55:29,009 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:55:29,011 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:55:29,012 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:29,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:55:29,016 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:55:29,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,018 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29, skipping insertion in model container [2023-12-02 13:55:29,018 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,086 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:55:29,245 WARN L240 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_87e0580f-a2fd-48f6-9632-7fcf9df97a47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1260,1273] [2023-12-02 13:55:29,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:29,551 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:55:29,560 WARN L240 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_87e0580f-a2fd-48f6-9632-7fcf9df97a47/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1260,1273] [2023-12-02 13:55:29,698 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:55:29,713 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:55:29,714 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29 WrapperNode [2023-12-02 13:55:29,714 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:55:29,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:29,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:55:29,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:55:29,723 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,766 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,852 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1819 [2023-12-02 13:55:29,853 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:55:29,854 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:55:29,854 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:55:29,854 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:55:29,864 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,864 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,878 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,878 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,962 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:55:29,963 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:55:29,963 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:55:29,963 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:55:29,964 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (1/1) ... [2023-12-02 13:55:29,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:55:29,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:55:29,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:55:29,998 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:55:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:55:30,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 13:55:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:55:30,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:55:30,374 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:55:30,377 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:55:33,032 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:55:33,140 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:55:33,140 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 13:55:33,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:33 BoogieIcfgContainer [2023-12-02 13:55:33,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:55:33,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:55:33,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:55:33,146 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:55:33,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:55:29" (1/3) ... [2023-12-02 13:55:33,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9b38cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:33, skipping insertion in model container [2023-12-02 13:55:33,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:55:29" (2/3) ... [2023-12-02 13:55:33,147 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9b38cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:55:33, skipping insertion in model container [2023-12-02 13:55:33,147 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:55:33" (3/3) ... [2023-12-02 13:55:33,149 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2023-12-02 13:55:33,164 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:55:33,164 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:55:33,200 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:55:33,206 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@5bf0b34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:55:33,206 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:55:33,209 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:55:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 13:55:33,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:33,216 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-12-02 13:55:33,216 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:55:33,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:33,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-12-02 13:55:33,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:55:33,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2041324545] [2023-12-02 13:55:33,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:33,236 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:55:33,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:55:33,237 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:55:33,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-02 13:55:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:55:33,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 13:55:33,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:55:33,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:55:33,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:55:33,922 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-12-02 13:55:33,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2041324545] [2023-12-02 13:55:33,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2041324545] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:55:33,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:55:33,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:55:33,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795386344] [2023-12-02 13:55:33,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:55:33,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:55:33,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-12-02 13:55:33,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:55:33,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:55:33,959 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-02 13:55:34,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:55:34,316 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-12-02 13:55:34,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:55:34,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-12-02 13:55:34,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:55:34,324 INFO L225 Difference]: With dead ends: 16 [2023-12-02 13:55:34,325 INFO L226 Difference]: Without dead ends: 9 [2023-12-02 13:55:34,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:55:34,331 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:55:34,332 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-02 13:55:34,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-12-02 13:55:34,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-12-02 13:55:34,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:55:34,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-02 13:55:34,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-12-02 13:55:34,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:55:34,362 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-12-02 13:55:34,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2023-12-02 13:55:34,363 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-02 13:55:34,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 13:55:34,363 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:55:34,364 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-12-02 13:55:34,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:55:34,566 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:55:34,567 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:55:34,567 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:55:34,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-12-02 13:55:34,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-12-02 13:55:34,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [883181751] [2023-12-02 13:55:34,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:55:34,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-02 13:55:34,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat [2023-12-02 13:55:34,573 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-02 13:55:34,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87e0580f-a2fd-48f6-9632-7fcf9df97a47/bin/utaipan-verify-nQ1chXbOIh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-02 13:55:37,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:55:37,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 1564 conjuncts, 256 conjunts are in the unsatisfiable core [2023-12-02 13:55:37,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:55:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:55:45,962 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 14:07:40,823 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 63994 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)