./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5 --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 c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:46:58,076 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:46:58,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:46:58,233 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:46:58,234 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:46:58,265 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:46:58,268 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:46:58,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:46:58,270 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:46:58,276 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:46:58,276 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:46:58,278 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:46:58,278 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:46:58,280 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:46:58,281 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:46:58,282 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:46:58,282 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:46:58,283 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:46:58,284 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:46:58,284 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:46:58,285 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:46:58,285 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:46:58,286 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:46:58,287 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:46:58,287 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:46:58,288 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:46:58,288 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:46:58,289 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:46:58,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:46:58,289 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:46:58,291 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:46:58,291 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:46:58,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:46:58,292 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:46:58,292 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:46:58,292 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:46:58,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:46:58,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:46:58,293 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:46:58,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:46:58,293 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:46:58,294 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:46:58,294 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:46:58,294 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:46:58,295 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_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f [2023-11-21 19:46:58,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:46:58,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:46:58,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:46:58,716 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:46:58,717 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:46:58,718 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-21 19:47:02,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:47:02,672 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:47:02,672 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-21 19:47:02,716 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data/639425a9c/75964be881934ecb83f67f15d83d581e/FLAGc6919e136 [2023-11-21 19:47:02,733 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data/639425a9c/75964be881934ecb83f67f15d83d581e [2023-11-21 19:47:02,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:47:02,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:47:02,745 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:02,745 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:47:02,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:47:02,751 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:02" (1/1) ... [2023-11-21 19:47:02,752 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae48f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:02, skipping insertion in model container [2023-11-21 19:47:02,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:02" (1/1) ... [2023-11-21 19:47:02,859 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:47:03,081 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_1618d204-e22a-4ad0-be78-e775a69f3d30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-21 19:47:03,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:03,694 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:47:03,706 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_1618d204-e22a-4ad0-be78-e775a69f3d30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-21 19:47:03,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:03,919 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:47:03,920 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03 WrapperNode [2023-11-21 19:47:03,920 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:03,921 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:03,922 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:47:03,922 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:47:03,929 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:04,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:04,753 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 5379 [2023-11-21 19:47:04,754 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:04,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:47:04,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:47:04,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:47:04,766 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:04,779 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:04,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:04,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:05,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:05,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:05,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:05,492 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:05,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:47:05,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:47:05,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:47:05,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:47:05,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (1/1) ... [2023-11-21 19:47:05,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:47:05,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:47:05,660 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:47:05,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:47:05,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:47:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:47:05,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:47:05,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:47:06,269 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:47:06,272 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:47:10,193 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:47:19,584 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:47:19,585 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:47:19,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:19 BoogieIcfgContainer [2023-11-21 19:47:19,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:47:19,590 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:47:19,591 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:47:19,595 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:47:19,595 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:47:02" (1/3) ... [2023-11-21 19:47:19,596 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5944fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:19, skipping insertion in model container [2023-11-21 19:47:19,596 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:03" (2/3) ... [2023-11-21 19:47:19,597 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b5944fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:19, skipping insertion in model container [2023-11-21 19:47:19,597 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:19" (3/3) ... [2023-11-21 19:47:19,599 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-21 19:47:19,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:47:19,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:47:19,671 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:47:19,678 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;@7c9fa068, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:19,679 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:47:19,683 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) [2023-11-21 19:47:19,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 19:47:19,690 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:47:19,691 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 19:47:19,692 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:47:19,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:19,698 INFO L85 PathProgramCache]: Analyzing trace with hash 145945166, now seen corresponding path program 1 times [2023-11-21 19:47:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:47:19,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635204066] [2023-11-21 19:47:19,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:19,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:47:20,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:47:20,995 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:47:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:47:21,804 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 19:47:21,806 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:47:21,807 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:47:21,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:47:21,814 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:47:21,819 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:47:21,877 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-21 19:47:21,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:47:21 BoogieIcfgContainer [2023-11-21 19:47:21,910 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:47:21,912 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:47:21,912 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:47:21,912 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:47:21,913 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:19" (3/4) ... [2023-11-21 19:47:21,917 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:47:21,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:47:21,920 INFO L158 Benchmark]: Toolchain (without parser) took 19179.38ms. Allocated memory was 142.6MB in the beginning and 3.6GB in the end (delta: 3.5GB). Free memory was 99.5MB in the beginning and 3.1GB in the end (delta: -3.0GB). Peak memory consumption was 469.1MB. Max. memory is 16.1GB. [2023-11-21 19:47:21,920 INFO L158 Benchmark]: CDTParser took 1.92ms. Allocated memory is still 142.6MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:47:21,922 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1175.70ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 99.2MB in the beginning and 83.0MB in the end (delta: 16.3MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. [2023-11-21 19:47:21,923 INFO L158 Benchmark]: Boogie Procedure Inliner took 832.85ms. Allocated memory was 172.0MB in the beginning and 302.0MB in the end (delta: 130.0MB). Free memory was 82.2MB in the beginning and 178.4MB in the end (delta: -96.2MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. [2023-11-21 19:47:21,928 INFO L158 Benchmark]: Boogie Preprocessor took 870.40ms. Allocated memory is still 302.0MB. Free memory was 178.4MB in the beginning and 169.7MB in the end (delta: 8.7MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2023-11-21 19:47:21,929 INFO L158 Benchmark]: RCFGBuilder took 13961.36ms. Allocated memory was 302.0MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 169.7MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 575.7MB. Max. memory is 16.1GB. [2023-11-21 19:47:21,930 INFO L158 Benchmark]: TraceAbstraction took 2319.67ms. Allocated memory is still 3.6GB. Free memory was 3.3GB in the beginning and 3.1GB in the end (delta: 188.7MB). Peak memory consumption was 188.7MB. Max. memory is 16.1GB. [2023-11-21 19:47:21,931 INFO L158 Benchmark]: Witness Printer took 6.71ms. Allocated memory is still 3.6GB. Free memory was 3.1GB in the beginning and 3.1GB in the end (delta: 2.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:47:21,939 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.92ms. Allocated memory is still 142.6MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1175.70ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 99.2MB in the beginning and 83.0MB in the end (delta: 16.3MB). Peak memory consumption was 55.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 832.85ms. Allocated memory was 172.0MB in the beginning and 302.0MB in the end (delta: 130.0MB). Free memory was 82.2MB in the beginning and 178.4MB in the end (delta: -96.2MB). Peak memory consumption was 61.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 870.40ms. Allocated memory is still 302.0MB. Free memory was 178.4MB in the beginning and 169.7MB in the end (delta: 8.7MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * RCFGBuilder took 13961.36ms. Allocated memory was 302.0MB in the beginning and 3.6GB in the end (delta: 3.3GB). Free memory was 169.7MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 575.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2319.67ms. Allocated memory is still 3.6GB. Free memory was 3.3GB in the beginning and 3.1GB in the end (delta: 188.7MB). Peak memory consumption was 188.7MB. Max. memory is 16.1GB. * Witness Printer took 6.71ms. Allocated memory is still 3.6GB. Free memory was 3.1GB in the beginning and 3.1GB in the end (delta: 2.6kB). 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 bitwiseOr at line 344, overapproximation of bitwiseAnd at line 244. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 2); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (2 - 1); [L29] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L30] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L32] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 3); [L33] const SORT_6 msb_SORT_6 = (SORT_6)1 << (3 - 1); [L35] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 4); [L36] const SORT_12 msb_SORT_12 = (SORT_12)1 << (4 - 1); [L38] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 8); [L39] const SORT_16 msb_SORT_16 = (SORT_16)1 << (8 - 1); [L41] const SORT_21 mask_SORT_21 = (SORT_21)-1 >> (sizeof(SORT_21) * 8 - 7); [L42] const SORT_21 msb_SORT_21 = (SORT_21)1 << (7 - 1); [L44] const SORT_21 var_22 = 1; [L45] const SORT_21 var_26 = 2; [L46] const SORT_21 var_29 = 4; [L47] const SORT_21 var_32 = 8; [L48] const SORT_21 var_35 = 16; [L49] const SORT_21 var_38 = 32; [L50] const SORT_21 var_41 = 64; [L51] const SORT_21 var_44 = 0; [L52] const SORT_3 var_47 = 1; [L53] const SORT_3 var_51 = 0; [L54] const SORT_6 var_138 = 0; [L56] SORT_1 input_2; [L57] SORT_3 input_4; [L58] SORT_3 input_5; [L59] SORT_6 input_7; [L60] SORT_3 input_8; [L61] SORT_3 input_9; [L62] SORT_3 input_10; [L63] SORT_3 input_11; [L64] SORT_12 input_13; [L65] SORT_3 input_14; [L66] SORT_3 input_15; [L67] SORT_16 input_17; [L68] SORT_3 input_18; [L69] SORT_3 input_19; [L70] SORT_3 input_20; [L71] SORT_3 input_360; [L72] SORT_3 input_382; [L73] SORT_3 input_397; [L74] SORT_3 input_412; [L75] SORT_3 input_427; [L76] SORT_3 input_442; [L77] SORT_3 input_457; [L78] SORT_3 input_472; [L79] SORT_3 input_487; [L80] SORT_3 input_502; [L81] SORT_3 input_517; [L82] SORT_3 input_532; [L83] SORT_3 input_547; [L84] SORT_3 input_562; [L85] SORT_3 input_577; [L86] SORT_3 input_592; [L87] SORT_3 input_608; [L88] SORT_3 input_610; [L89] SORT_3 input_612; [L90] SORT_3 input_614; [L91] SORT_3 input_616; [L92] SORT_3 input_618; [L93] SORT_3 input_620; [L94] SORT_3 input_622; [L95] SORT_3 input_627; [L96] SORT_3 input_669; [L97] SORT_3 input_678; [L98] SORT_21 input_683; [L99] SORT_21 input_684; [L100] SORT_21 input_685; [L101] SORT_21 input_686; [L102] SORT_21 input_689; [L103] SORT_21 input_693; [L104] SORT_21 input_697; [L105] SORT_21 input_705; [L106] SORT_21 input_709; [L107] SORT_21 input_711; [L108] SORT_21 input_715; [L109] SORT_21 input_718; [L110] SORT_21 input_722; [L111] SORT_21 input_727; [L112] SORT_21 input_731; [L113] SORT_21 input_736; [L114] SORT_21 input_738; [L115] SORT_21 input_739; [L116] SORT_21 input_741; [L117] SORT_21 input_745; [L118] SORT_21 input_750; [L119] SORT_21 input_757; [L120] SORT_21 input_758; [L121] SORT_21 input_760; [L122] SORT_21 input_764; [L123] SORT_21 input_769; [L124] SORT_21 input_771; [L125] SORT_21 input_772; [L126] SORT_21 input_774; [L127] SORT_21 input_778; [L128] SORT_21 input_783; [L129] SORT_21 input_787; [L130] SORT_21 input_792; [L131] SORT_21 input_794; [L132] SORT_21 input_800; [L133] SORT_21 input_812; [L134] SORT_3 input_830; [L135] SORT_3 input_837; [L136] SORT_3 input_848; [L137] SORT_3 input_854; [L138] SORT_3 input_860; [L139] SORT_3 input_866; [L140] SORT_3 input_872; [L141] SORT_3 input_878; [L142] SORT_3 input_884; [L143] SORT_3 input_890; [L144] SORT_3 input_896; [L145] SORT_3 input_902; [L146] SORT_3 input_908; [L147] SORT_3 input_914; [L148] SORT_3 input_920; [L150] EXPR __VERIFIER_nondet_uchar() & mask_SORT_21 [L150] SORT_21 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L151] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L151] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L152] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L152] SORT_3 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L153] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L153] SORT_3 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L154] EXPR __VERIFIER_nondet_uchar() & mask_SORT_21 [L154] SORT_21 state_58 = __VERIFIER_nondet_uchar() & mask_SORT_21; [L155] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L155] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L156] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L156] SORT_3 state_66 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L157] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L157] SORT_3 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L158] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L158] SORT_3 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L159] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L159] SORT_3 state_103 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L160] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L160] SORT_3 state_106 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L161] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L161] SORT_3 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L162] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L162] SORT_3 state_112 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L163] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L163] SORT_3 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L164] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L164] SORT_3 state_121 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L165] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L165] SORT_3 state_124 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L166] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L166] SORT_3 state_134 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L167] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L167] SORT_3 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L168] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L168] SORT_3 state_144 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L169] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L169] SORT_3 state_153 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L170] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L170] SORT_3 state_158 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L171] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L171] SORT_3 state_161 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L172] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L172] SORT_3 state_173 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L173] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L173] SORT_3 state_183 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L174] SORT_3 state_188 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L175] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L175] SORT_3 state_191 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L176] SORT_3 state_200 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L177] SORT_3 state_213 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_3 [L178] SORT_3 state_226 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L180] SORT_21 init_24_arg_1 = var_22; [L181] state_23 = init_24_arg_1 [L182] SORT_3 init_53_arg_1 = var_51; [L183] state_52 = init_53_arg_1 [L184] SORT_3 init_55_arg_1 = var_51; [L185] state_54 = init_55_arg_1 [L186] SORT_3 init_57_arg_1 = var_51; [L187] state_56 = init_57_arg_1 [L188] SORT_21 init_59_arg_1 = var_22; [L189] state_58 = init_59_arg_1 [L190] SORT_3 init_63_arg_1 = var_51; [L191] state_62 = init_63_arg_1 [L192] SORT_3 init_67_arg_1 = var_51; [L193] state_66 = init_67_arg_1 [L194] SORT_3 init_71_arg_1 = var_51; [L195] state_70 = init_71_arg_1 [L196] SORT_3 init_87_arg_1 = var_51; [L197] state_86 = init_87_arg_1 [L198] SORT_3 init_104_arg_1 = var_51; [L199] state_103 = init_104_arg_1 [L200] SORT_3 init_107_arg_1 = var_51; [L201] state_106 = init_107_arg_1 [L202] SORT_3 init_109_arg_1 = var_51; [L203] state_108 = init_109_arg_1 [L204] SORT_3 init_113_arg_1 = var_51; [L205] state_112 = init_113_arg_1 [L206] SORT_3 init_117_arg_1 = var_51; [L207] state_116 = init_117_arg_1 [L208] SORT_3 init_122_arg_1 = var_51; [L209] state_121 = init_122_arg_1 [L210] SORT_3 init_125_arg_1 = var_51; [L211] state_124 = init_125_arg_1 [L212] SORT_3 init_135_arg_1 = var_51; [L213] state_134 = init_135_arg_1 [L214] SORT_3 init_142_arg_1 = var_51; [L215] state_141 = init_142_arg_1 [L216] SORT_3 init_145_arg_1 = var_51; [L217] state_144 = init_145_arg_1 [L218] SORT_3 init_154_arg_1 = var_51; [L219] state_153 = init_154_arg_1 [L220] SORT_3 init_159_arg_1 = var_51; [L221] state_158 = init_159_arg_1 [L222] SORT_3 init_162_arg_1 = var_51; [L223] state_161 = init_162_arg_1 [L224] SORT_3 init_174_arg_1 = var_51; [L225] state_173 = init_174_arg_1 [L226] SORT_3 init_184_arg_1 = var_51; [L227] state_183 = init_184_arg_1 [L228] SORT_3 init_189_arg_1 = var_51; [L229] state_188 = init_189_arg_1 [L230] SORT_3 init_192_arg_1 = var_51; [L231] state_191 = init_192_arg_1 [L232] SORT_3 init_201_arg_1 = var_51; [L233] state_200 = init_201_arg_1 [L234] SORT_3 init_214_arg_1 = var_51; [L235] state_213 = init_214_arg_1 [L236] SORT_3 init_227_arg_1 = var_51; [L237] state_226 = init_227_arg_1 VAL [init_104_arg_1=0, init_107_arg_1=0, init_109_arg_1=0, init_113_arg_1=0, init_117_arg_1=0, init_122_arg_1=0, init_125_arg_1=0, init_135_arg_1=0, init_142_arg_1=0, init_145_arg_1=0, init_154_arg_1=0, init_159_arg_1=0, init_162_arg_1=0, init_174_arg_1=0, init_184_arg_1=0, init_189_arg_1=0, init_192_arg_1=0, init_201_arg_1=0, init_214_arg_1=0, init_227_arg_1=0, init_24_arg_1=1, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_59_arg_1=1, init_63_arg_1=0, init_67_arg_1=0, init_71_arg_1=0, init_87_arg_1=0, mask_SORT_12=15, mask_SORT_16=255, mask_SORT_1=3, mask_SORT_21=127, mask_SORT_3=1, mask_SORT_6=7, msb_SORT_12=8, msb_SORT_16=128, msb_SORT_1=2, msb_SORT_21=64, msb_SORT_3=1, msb_SORT_6=4, state_103=0, state_106=0, state_108=0, state_112=0, state_116=0, state_121=0, state_124=0, state_134=0, state_141=0, state_144=0, state_153=0, state_158=0, state_161=0, state_173=0, state_183=0, state_188=0, state_191=0, state_200=0, state_213=0, state_226=0, state_23=1, state_52=0, state_54=0, state_56=0, state_58=1, state_62=0, state_66=0, state_70=0, state_86=0, var_138=0, var_22=1, var_26=2, var_29=4, var_32=8, var_35=16, var_38=32, var_41=64, var_44=0, var_47=1, var_51=0] [L240] input_2 = __VERIFIER_nondet_uchar() [L241] input_4 = __VERIFIER_nondet_uchar() [L242] input_5 = __VERIFIER_nondet_uchar() [L243] input_7 = __VERIFIER_nondet_uchar() [L244] EXPR input_7 & mask_SORT_6 [L244] input_7 = input_7 & mask_SORT_6 [L245] input_8 = __VERIFIER_nondet_uchar() [L246] input_9 = __VERIFIER_nondet_uchar() [L247] input_10 = __VERIFIER_nondet_uchar() [L248] input_11 = __VERIFIER_nondet_uchar() [L249] input_13 = __VERIFIER_nondet_uchar() [L250] input_14 = __VERIFIER_nondet_uchar() [L251] input_15 = __VERIFIER_nondet_uchar() [L252] input_17 = __VERIFIER_nondet_uchar() [L253] input_18 = __VERIFIER_nondet_uchar() [L254] input_19 = __VERIFIER_nondet_uchar() [L255] input_20 = __VERIFIER_nondet_uchar() [L256] input_360 = __VERIFIER_nondet_uchar() [L257] input_382 = __VERIFIER_nondet_uchar() [L258] input_397 = __VERIFIER_nondet_uchar() [L259] input_412 = __VERIFIER_nondet_uchar() [L260] input_427 = __VERIFIER_nondet_uchar() [L261] input_442 = __VERIFIER_nondet_uchar() [L262] input_457 = __VERIFIER_nondet_uchar() [L263] input_472 = __VERIFIER_nondet_uchar() [L264] input_487 = __VERIFIER_nondet_uchar() [L265] input_502 = __VERIFIER_nondet_uchar() [L266] input_517 = __VERIFIER_nondet_uchar() [L267] input_532 = __VERIFIER_nondet_uchar() [L268] input_547 = __VERIFIER_nondet_uchar() [L269] input_562 = __VERIFIER_nondet_uchar() [L270] input_577 = __VERIFIER_nondet_uchar() [L271] input_592 = __VERIFIER_nondet_uchar() [L272] input_608 = __VERIFIER_nondet_uchar() [L273] input_610 = __VERIFIER_nondet_uchar() [L274] input_612 = __VERIFIER_nondet_uchar() [L275] input_614 = __VERIFIER_nondet_uchar() [L276] input_616 = __VERIFIER_nondet_uchar() [L277] input_618 = __VERIFIER_nondet_uchar() [L278] input_620 = __VERIFIER_nondet_uchar() [L279] input_622 = __VERIFIER_nondet_uchar() [L280] input_627 = __VERIFIER_nondet_uchar() [L281] input_669 = __VERIFIER_nondet_uchar() [L282] input_678 = __VERIFIER_nondet_uchar() [L283] input_683 = __VERIFIER_nondet_uchar() [L284] input_684 = __VERIFIER_nondet_uchar() [L285] input_685 = __VERIFIER_nondet_uchar() [L286] input_686 = __VERIFIER_nondet_uchar() [L287] input_689 = __VERIFIER_nondet_uchar() [L288] input_693 = __VERIFIER_nondet_uchar() [L289] input_697 = __VERIFIER_nondet_uchar() [L290] input_705 = __VERIFIER_nondet_uchar() [L291] input_709 = __VERIFIER_nondet_uchar() [L292] input_711 = __VERIFIER_nondet_uchar() [L293] input_715 = __VERIFIER_nondet_uchar() [L294] input_718 = __VERIFIER_nondet_uchar() [L295] input_722 = __VERIFIER_nondet_uchar() [L296] input_727 = __VERIFIER_nondet_uchar() [L297] input_731 = __VERIFIER_nondet_uchar() [L298] input_736 = __VERIFIER_nondet_uchar() [L299] input_738 = __VERIFIER_nondet_uchar() [L300] input_739 = __VERIFIER_nondet_uchar() [L301] input_741 = __VERIFIER_nondet_uchar() [L302] input_745 = __VERIFIER_nondet_uchar() [L303] input_750 = __VERIFIER_nondet_uchar() [L304] input_757 = __VERIFIER_nondet_uchar() [L305] input_758 = __VERIFIER_nondet_uchar() [L306] input_760 = __VERIFIER_nondet_uchar() [L307] input_764 = __VERIFIER_nondet_uchar() [L308] input_769 = __VERIFIER_nondet_uchar() [L309] input_771 = __VERIFIER_nondet_uchar() [L310] input_772 = __VERIFIER_nondet_uchar() [L311] input_774 = __VERIFIER_nondet_uchar() [L312] input_778 = __VERIFIER_nondet_uchar() [L313] input_783 = __VERIFIER_nondet_uchar() [L314] input_787 = __VERIFIER_nondet_uchar() [L315] input_792 = __VERIFIER_nondet_uchar() [L316] input_794 = __VERIFIER_nondet_uchar() [L317] input_800 = __VERIFIER_nondet_uchar() [L318] input_812 = __VERIFIER_nondet_uchar() [L319] input_830 = __VERIFIER_nondet_uchar() [L320] input_837 = __VERIFIER_nondet_uchar() [L321] input_848 = __VERIFIER_nondet_uchar() [L322] input_854 = __VERIFIER_nondet_uchar() [L323] input_860 = __VERIFIER_nondet_uchar() [L324] input_866 = __VERIFIER_nondet_uchar() [L325] input_872 = __VERIFIER_nondet_uchar() [L326] input_878 = __VERIFIER_nondet_uchar() [L327] input_884 = __VERIFIER_nondet_uchar() [L328] input_890 = __VERIFIER_nondet_uchar() [L329] input_896 = __VERIFIER_nondet_uchar() [L330] input_902 = __VERIFIER_nondet_uchar() [L331] input_908 = __VERIFIER_nondet_uchar() [L332] input_914 = __VERIFIER_nondet_uchar() [L333] input_920 = __VERIFIER_nondet_uchar() [L336] SORT_21 var_25_arg_0 = state_23; [L337] SORT_21 var_25_arg_1 = var_22; [L338] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L339] SORT_21 var_27_arg_0 = state_23; [L340] SORT_21 var_27_arg_1 = var_26; [L341] SORT_3 var_27 = var_27_arg_0 == var_27_arg_1; [L342] SORT_3 var_28_arg_0 = var_25; [L343] SORT_3 var_28_arg_1 = var_27; [L344] EXPR var_28_arg_0 | var_28_arg_1 [L344] SORT_3 var_28 = var_28_arg_0 | var_28_arg_1; [L345] SORT_21 var_30_arg_0 = state_23; [L346] SORT_21 var_30_arg_1 = var_29; [L347] SORT_3 var_30 = var_30_arg_0 == var_30_arg_1; [L348] SORT_3 var_31_arg_0 = var_28; [L349] SORT_3 var_31_arg_1 = var_30; [L350] EXPR var_31_arg_0 | var_31_arg_1 [L350] SORT_3 var_31 = var_31_arg_0 | var_31_arg_1; [L351] SORT_21 var_33_arg_0 = state_23; [L352] SORT_21 var_33_arg_1 = var_32; [L353] SORT_3 var_33 = var_33_arg_0 == var_33_arg_1; [L354] SORT_3 var_34_arg_0 = var_31; [L355] SORT_3 var_34_arg_1 = var_33; [L356] EXPR var_34_arg_0 | var_34_arg_1 [L356] SORT_3 var_34 = var_34_arg_0 | var_34_arg_1; [L357] SORT_21 var_36_arg_0 = state_23; [L358] SORT_21 var_36_arg_1 = var_35; [L359] SORT_3 var_36 = var_36_arg_0 == var_36_arg_1; [L360] SORT_3 var_37_arg_0 = var_34; [L361] SORT_3 var_37_arg_1 = var_36; [L362] EXPR var_37_arg_0 | var_37_arg_1 [L362] SORT_3 var_37 = var_37_arg_0 | var_37_arg_1; [L363] SORT_21 var_39_arg_0 = state_23; [L364] SORT_21 var_39_arg_1 = var_38; [L365] SORT_3 var_39 = var_39_arg_0 == var_39_arg_1; [L366] SORT_3 var_40_arg_0 = var_37; [L367] SORT_3 var_40_arg_1 = var_39; [L368] EXPR var_40_arg_0 | var_40_arg_1 [L368] SORT_3 var_40 = var_40_arg_0 | var_40_arg_1; [L369] SORT_21 var_42_arg_0 = state_23; [L370] SORT_21 var_42_arg_1 = var_41; [L371] SORT_3 var_42 = var_42_arg_0 == var_42_arg_1; [L372] SORT_3 var_43_arg_0 = var_40; [L373] SORT_3 var_43_arg_1 = var_42; [L374] EXPR var_43_arg_0 | var_43_arg_1 [L374] SORT_3 var_43 = var_43_arg_0 | var_43_arg_1; [L375] SORT_21 var_45_arg_0 = state_23; [L376] SORT_21 var_45_arg_1 = var_44; [L377] SORT_3 var_45 = var_45_arg_0 == var_45_arg_1; [L378] SORT_3 var_46_arg_0 = var_43; [L379] SORT_3 var_46_arg_1 = var_45; [L380] EXPR var_46_arg_0 | var_46_arg_1 [L380] SORT_3 var_46 = var_46_arg_0 | var_46_arg_1; [L381] SORT_3 var_48_arg_0 = var_46; [L382] SORT_3 var_48 = ~var_48_arg_0; [L383] SORT_3 var_49_arg_0 = var_47; [L384] SORT_3 var_49_arg_1 = var_48; [L385] EXPR var_49_arg_0 & var_49_arg_1 [L385] SORT_3 var_49 = var_49_arg_0 & var_49_arg_1; [L386] EXPR var_49 & mask_SORT_3 [L386] var_49 = var_49 & mask_SORT_3 [L387] SORT_3 bad_50_arg_0 = var_49; [L388] CALL __VERIFIER_assert(!(bad_50_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: 2.2s, 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, 1.1s 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 [2023-11-21 19:47:21,984 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5 --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 c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:47:24,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:47:24,760 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-21 19:47:24,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:47:24,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:47:24,795 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:47:24,796 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:47:24,796 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:47:24,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:47:24,798 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:47:24,798 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:47:24,799 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:47:24,799 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:47:24,800 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:47:24,800 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:47:24,801 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:47:24,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:47:24,802 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:47:24,803 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:47:24,803 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:47:24,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:47:24,810 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:47:24,810 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:47:24,811 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:47:24,811 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:47:24,811 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:47:24,812 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:47:24,812 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:47:24,813 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:47:24,813 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:47:24,813 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:47:24,814 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:47:24,814 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:47:24,815 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:47:24,815 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:47:24,815 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:47:24,816 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:47:24,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:47:24,816 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:47:24,817 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:47:24,817 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:47:24,819 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_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c8208b6c8f4a2ac058115c356d3ca9113d648f4f67e8abc6f1ec7c44bb7ab63f [2023-11-21 19:47:25,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:47:25,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:47:25,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:47:25,319 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:47:25,319 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:47:25,321 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-21 19:47:28,632 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:47:29,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:47:29,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-21 19:47:29,095 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data/b0551ec95/6241a78cbba240ebaa307cc1cc9a43be/FLAG96bb19b55 [2023-11-21 19:47:29,117 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/data/b0551ec95/6241a78cbba240ebaa307cc1cc9a43be [2023-11-21 19:47:29,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:47:29,130 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:47:29,134 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:29,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:47:29,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:47:29,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:29" (1/1) ... [2023-11-21 19:47:29,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e044491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:29, skipping insertion in model container [2023-11-21 19:47:29,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:47:29" (1/1) ... [2023-11-21 19:47:29,265 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:47:29,498 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_1618d204-e22a-4ad0-be78-e775a69f3d30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-21 19:47:30,067 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:30,080 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:47:30,092 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_1618d204-e22a-4ad0-be78-e775a69f3d30/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c[1268,1281] [2023-11-21 19:47:30,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:47:30,399 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:47:30,400 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30 WrapperNode [2023-11-21 19:47:30,400 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:47:30,401 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:30,401 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:47:30,402 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:47:30,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,487 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,712 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2619 [2023-11-21 19:47:30,713 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:47:30,714 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:47:30,715 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:47:30,715 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:47:30,726 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,726 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,853 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,873 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,912 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,932 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:47:30,934 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:47:30,934 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:47:30,934 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:47:30,936 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (1/1) ... [2023-11-21 19:47:30,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:47:30,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:47:30,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:47:30,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:47:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:47:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:47:31,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:47:31,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:47:31,567 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:47:31,570 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:47:35,756 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:47:35,963 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:47:35,963 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 19:47:35,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:35 BoogieIcfgContainer [2023-11-21 19:47:35,966 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:47:35,971 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:47:35,971 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:47:35,975 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:47:35,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:47:29" (1/3) ... [2023-11-21 19:47:35,976 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b7362e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:35, skipping insertion in model container [2023-11-21 19:47:35,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:47:30" (2/3) ... [2023-11-21 19:47:35,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37b7362e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:47:35, skipping insertion in model container [2023-11-21 19:47:35,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:47:35" (3/3) ... [2023-11-21 19:47:35,980 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_pj_icu_icctl_p1.c [2023-11-21 19:47:36,001 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:47:36,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:47:36,060 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:47:36,068 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;@3c7bef08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:47:36,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:47:36,073 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) [2023-11-21 19:47:36,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 19:47:36,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:47:36,080 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-21 19:47:36,081 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:47:36,093 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:36,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-21 19:47:36,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:47:36,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092829902] [2023-11-21 19:47:36,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:36,116 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 [2023-11-21 19:47:36,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:47:36,119 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:47:36,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:47:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:36,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-21 19:47:36,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:37,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:37,238 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 19:47:37,239 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-21 19:47:37,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092829902] [2023-11-21 19:47:37,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092829902] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:47:37,240 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:47:37,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:47:37,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097005098] [2023-11-21 19:47:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:47:37,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-21 19:47:37,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-21 19:47:37,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-21 19:47:37,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-21 19:47:37,284 INFO L87 Difference]: Start difference. First 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) 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) [2023-11-21 19:47:37,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:47:37,653 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-21 19:47:37,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-21 19:47:37,656 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 [2023-11-21 19:47:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:47:37,663 INFO L225 Difference]: With dead ends: 15 [2023-11-21 19:47:37,664 INFO L226 Difference]: Without dead ends: 9 [2023-11-21 19:47:37,666 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 [2023-11-21 19:47:37,671 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 [2023-11-21 19:47:37,672 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] [2023-11-21 19:47:37,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-21 19:47:37,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-21 19:47:37,702 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) [2023-11-21 19:47:37,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-21 19:47:37,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-21 19:47:37,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:47:37,704 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-21 19:47:37,705 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) [2023-11-21 19:47:37,705 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-21 19:47:37,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-21 19:47:37,705 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:47:37,706 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-21 19:47:37,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:47:37,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:47:37,909 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:47:37,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:47:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-21 19:47:37,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:47:37,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [49287828] [2023-11-21 19:47:37,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:47:37,914 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 [2023-11-21 19:47:37,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:47:37,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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) [2023-11-21 19:47:37,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1618d204-e22a-4ad0-be78-e775a69f3d30/bin/utaipan-verify-QoSU8krkJ5/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 [2023-11-21 19:47:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:47:41,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 2159 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-21 19:47:41,584 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 19:47:41,912 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 19:47:41,912 INFO L327 TraceCheckSpWp]: Computing backward predicates...