./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire --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 a9990c01c9a1f9597f7bc9fb384dfed8f76d280524d4aa5e1bce8b343e8f7c08 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:17,644 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:17,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:12:17,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:17,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:17,815 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:17,816 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:17,816 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:17,818 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:17,823 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:17,824 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:17,824 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:17,825 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:17,826 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:17,827 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:17,827 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:17,828 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:17,828 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:17,829 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:17,830 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:17,830 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:17,836 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:17,838 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:17,838 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:17,839 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:17,839 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:17,840 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:17,840 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:17,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:17,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:17,842 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:17,843 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:17,843 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:17,843 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:17,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:17,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:17,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:17,844 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:17,845 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:17,845 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:17,845 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:17,846 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:17,846 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:17,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:17,846 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_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9990c01c9a1f9597f7bc9fb384dfed8f76d280524d4aa5e1bce8b343e8f7c08 [2023-11-23 21:12:18,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:18,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:18,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:18,251 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:18,251 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:18,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c [2023-11-23 21:12:21,362 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:21,768 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:21,768 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c [2023-11-23 21:12:21,789 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data/d8bdda7d7/5c6a9e3f477b467f9e76da0b7783fba9/FLAGa8ddbf1b1 [2023-11-23 21:12:21,807 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data/d8bdda7d7/5c6a9e3f477b467f9e76da0b7783fba9 [2023-11-23 21:12:21,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:21,815 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:21,817 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:21,817 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:21,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:21,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:21,825 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211ae382 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:21, skipping insertion in model container [2023-11-23 21:12:21,825 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:21" (1/1) ... [2023-11-23 21:12:21,887 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:22,089 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_1d67c958-88da-4852-9fd9-e7f40eef0acb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c[1245,1258] [2023-11-23 21:12:22,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:22,534 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:22,549 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_1d67c958-88da-4852-9fd9-e7f40eef0acb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c[1245,1258] [2023-11-23 21:12:22,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:22,694 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:22,694 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22 WrapperNode [2023-11-23 21:12:22,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:22,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:22,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:22,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:22,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:22,758 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:22,950 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1999 [2023-11-23 21:12:22,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:22,952 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:22,952 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:22,952 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:22,962 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:22,963 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,062 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,140 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,220 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,253 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:23,255 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:23,255 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:23,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:23,257 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (1/1) ... [2023-11-23 21:12:23,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:23,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:23,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:23,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:23,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:23,799 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:23,809 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:25,479 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:28,167 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:28,168 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:12:28,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:28 BoogieIcfgContainer [2023-11-23 21:12:28,169 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:28,172 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:28,172 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:28,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:28,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:21" (1/3) ... [2023-11-23 21:12:28,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e05bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:28, skipping insertion in model container [2023-11-23 21:12:28,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:22" (2/3) ... [2023-11-23 21:12:28,179 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e05bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:28, skipping insertion in model container [2023-11-23 21:12:28,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:28" (3/3) ... [2023-11-23 21:12:28,181 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b03.c [2023-11-23 21:12:28,201 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:28,202 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:28,254 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:28,261 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;@4dac93c0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:28,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:28,265 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) [2023-11-23 21:12:28,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:12:28,271 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:28,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:12:28,273 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:28,278 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:28,278 INFO L85 PathProgramCache]: Analyzing trace with hash 24937781, now seen corresponding path program 1 times [2023-11-23 21:12:28,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:28,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044569547] [2023-11-23 21:12:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:29,099 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:12:29,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:12:29,535 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:12:29,537 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:12:29,541 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:12:29,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:12:29,551 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:12:29,556 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:12:29,611 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 21:12:29,640 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:12:29 BoogieIcfgContainer [2023-11-23 21:12:29,647 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:12:29,648 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:12:29,650 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:12:29,650 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:12:29,651 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:28" (3/4) ... [2023-11-23 21:12:29,653 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:12:29,656 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:12:29,658 INFO L158 Benchmark]: Toolchain (without parser) took 7842.76ms. Allocated memory was 174.1MB in the beginning and 350.2MB in the end (delta: 176.2MB). Free memory was 129.0MB in the beginning and 140.0MB in the end (delta: -10.9MB). Peak memory consumption was 168.9MB. Max. memory is 16.1GB. [2023-11-23 21:12:29,658 INFO L158 Benchmark]: CDTParser took 1.50ms. Allocated memory is still 113.2MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:12:29,660 INFO L158 Benchmark]: CACSL2BoogieTranslator took 878.26ms. Allocated memory is still 174.1MB. Free memory was 129.0MB in the beginning and 81.6MB in the end (delta: 47.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2023-11-23 21:12:29,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 255.63ms. Allocated memory is still 174.1MB. Free memory was 81.6MB in the beginning and 52.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-23 21:12:29,663 INFO L158 Benchmark]: Boogie Preprocessor took 301.46ms. Allocated memory is still 174.1MB. Free memory was 52.2MB in the beginning and 119.9MB in the end (delta: -67.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2023-11-23 21:12:29,667 INFO L158 Benchmark]: RCFGBuilder took 4915.00ms. Allocated memory was 174.1MB in the beginning and 350.2MB in the end (delta: 176.2MB). Free memory was 119.9MB in the beginning and 250.1MB in the end (delta: -130.1MB). Peak memory consumption was 183.8MB. Max. memory is 16.1GB. [2023-11-23 21:12:29,669 INFO L158 Benchmark]: TraceAbstraction took 1475.57ms. Allocated memory is still 350.2MB. Free memory was 249.0MB in the beginning and 140.0MB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:29,670 INFO L158 Benchmark]: Witness Printer took 8.22ms. Allocated memory is still 350.2MB. Free memory was 140.0MB in the beginning and 140.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:12:29,674 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50ms. Allocated memory is still 113.2MB. Free memory is still 81.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 878.26ms. Allocated memory is still 174.1MB. Free memory was 129.0MB in the beginning and 81.6MB in the end (delta: 47.4MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 255.63ms. Allocated memory is still 174.1MB. Free memory was 81.6MB in the beginning and 52.2MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 301.46ms. Allocated memory is still 174.1MB. Free memory was 52.2MB in the beginning and 119.9MB in the end (delta: -67.7MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. * RCFGBuilder took 4915.00ms. Allocated memory was 174.1MB in the beginning and 350.2MB in the end (delta: 176.2MB). Free memory was 119.9MB in the beginning and 250.1MB in the end (delta: -130.1MB). Peak memory consumption was 183.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1475.57ms. Allocated memory is still 350.2MB. Free memory was 249.0MB in the beginning and 140.0MB in the end (delta: 109.1MB). Peak memory consumption was 109.1MB. Max. memory is 16.1GB. * Witness Printer took 8.22ms. Allocated memory is still 350.2MB. Free memory was 140.0MB in the beginning and 140.0MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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 343, overapproximation of bitwiseAnd at line 330. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 4); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (4 - 1); [L32] const SORT_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 32); [L33] const SORT_11 msb_SORT_11 = (SORT_11)1 << (32 - 1); [L35] const SORT_37 mask_SORT_37 = (SORT_37)-1 >> (sizeof(SORT_37) * 8 - 3); [L36] const SORT_37 msb_SORT_37 = (SORT_37)1 << (3 - 1); [L38] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 2); [L39] const SORT_67 msb_SORT_67 = (SORT_67)1 << (2 - 1); [L41] const SORT_7 var_8 = 0; [L42] const SORT_11 var_13 = 0; [L43] const SORT_11 var_16 = 8; [L44] const SORT_11 var_20 = 4; [L45] const SORT_11 var_24 = 2; [L46] const SORT_11 var_28 = 1; [L47] const SORT_1 var_33 = 1; [L48] const SORT_37 var_38 = 0; [L49] const SORT_1 var_47 = 0; [L50] const SORT_67 var_68 = 0; [L51] const SORT_67 var_71 = 1; [L52] const SORT_37 var_81 = 7; [L53] const SORT_37 var_104 = 1; [L54] const SORT_37 var_123 = 2; [L55] const SORT_37 var_138 = 4; [L56] const SORT_67 var_154 = 2; [L57] const SORT_7 var_394 = 8; [L58] const SORT_7 var_397 = 4; [L59] const SORT_7 var_400 = 2; [L60] const SORT_7 var_401 = 1; [L62] SORT_1 input_2; [L63] SORT_1 input_3; [L64] SORT_1 input_4; [L65] SORT_1 input_5; [L66] SORT_1 input_6; [L67] SORT_37 input_75; [L68] SORT_37 input_76; [L69] SORT_37 input_77; [L70] SORT_37 input_78; [L71] SORT_37 input_79; [L72] SORT_37 input_80; [L73] SORT_37 input_85; [L74] SORT_37 input_87; [L75] SORT_37 input_89; [L76] SORT_37 input_94; [L77] SORT_37 input_96; [L78] SORT_37 input_98; [L79] SORT_37 input_102; [L80] SORT_37 input_103; [L81] SORT_37 input_108; [L82] SORT_37 input_110; [L83] SORT_37 input_115; [L84] SORT_37 input_117; [L85] SORT_37 input_121; [L86] SORT_37 input_122; [L87] SORT_37 input_127; [L88] SORT_37 input_132; [L89] SORT_37 input_136; [L90] SORT_37 input_137; [L91] SORT_37 input_149; [L92] SORT_37 input_160; [L93] SORT_37 input_161; [L94] SORT_37 input_162; [L95] SORT_37 input_163; [L96] SORT_37 input_164; [L97] SORT_37 input_165; [L98] SORT_37 input_168; [L99] SORT_37 input_170; [L100] SORT_37 input_172; [L101] SORT_37 input_177; [L102] SORT_37 input_179; [L103] SORT_37 input_181; [L104] SORT_37 input_185; [L105] SORT_37 input_186; [L106] SORT_37 input_189; [L107] SORT_37 input_191; [L108] SORT_37 input_196; [L109] SORT_37 input_198; [L110] SORT_37 input_202; [L111] SORT_37 input_203; [L112] SORT_37 input_206; [L113] SORT_37 input_211; [L114] SORT_37 input_215; [L115] SORT_37 input_216; [L116] SORT_37 input_226; [L117] SORT_37 input_233; [L118] SORT_37 input_234; [L119] SORT_37 input_235; [L120] SORT_37 input_236; [L121] SORT_37 input_237; [L122] SORT_37 input_238; [L123] SORT_37 input_241; [L124] SORT_37 input_243; [L125] SORT_37 input_245; [L126] SORT_37 input_250; [L127] SORT_37 input_252; [L128] SORT_37 input_254; [L129] SORT_37 input_258; [L130] SORT_37 input_259; [L131] SORT_37 input_262; [L132] SORT_37 input_264; [L133] SORT_37 input_269; [L134] SORT_37 input_271; [L135] SORT_37 input_275; [L136] SORT_37 input_276; [L137] SORT_37 input_279; [L138] SORT_37 input_284; [L139] SORT_37 input_288; [L140] SORT_37 input_289; [L141] SORT_37 input_299; [L142] SORT_37 input_306; [L143] SORT_37 input_307; [L144] SORT_37 input_308; [L145] SORT_37 input_309; [L146] SORT_37 input_310; [L147] SORT_37 input_311; [L148] SORT_37 input_314; [L149] SORT_37 input_316; [L150] SORT_37 input_318; [L151] SORT_37 input_323; [L152] SORT_37 input_325; [L153] SORT_37 input_327; [L154] SORT_37 input_331; [L155] SORT_37 input_332; [L156] SORT_37 input_335; [L157] SORT_37 input_337; [L158] SORT_37 input_342; [L159] SORT_37 input_344; [L160] SORT_37 input_348; [L161] SORT_37 input_349; [L162] SORT_37 input_352; [L163] SORT_37 input_357; [L164] SORT_37 input_361; [L165] SORT_37 input_362; [L166] SORT_37 input_372; [L167] SORT_7 input_391; [L168] SORT_7 input_392; [L169] SORT_7 input_393; [L171] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 [L171] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L172] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 [L172] SORT_37 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L173] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 [L173] SORT_37 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L174] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 [L174] SORT_37 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L175] EXPR __VERIFIER_nondet_uchar() & mask_SORT_37 [L175] SORT_37 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_37; [L176] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L176] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L177] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L177] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L178] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L178] SORT_1 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L179] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L179] SORT_1 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L180] EXPR __VERIFIER_nondet_uchar() & mask_SORT_7 [L180] SORT_7 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L181] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L181] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L182] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L182] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L183] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L183] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L184] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L184] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L185] EXPR __VERIFIER_nondet_uchar() & mask_SORT_67 [L185] SORT_67 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_67; [L187] SORT_7 init_10_arg_1 = var_8; [L188] state_9 = init_10_arg_1 [L189] SORT_37 init_40_arg_1 = var_38; [L190] state_39 = init_40_arg_1 [L191] SORT_37 init_42_arg_1 = var_38; [L192] state_41 = init_42_arg_1 [L193] SORT_37 init_44_arg_1 = var_38; [L194] state_43 = init_44_arg_1 [L195] SORT_37 init_46_arg_1 = var_38; [L196] state_45 = init_46_arg_1 [L197] SORT_1 init_49_arg_1 = var_47; [L198] state_48 = init_49_arg_1 [L199] SORT_1 init_51_arg_1 = var_47; [L200] state_50 = init_51_arg_1 [L201] SORT_1 init_53_arg_1 = var_47; [L202] state_52 = init_53_arg_1 [L203] SORT_1 init_55_arg_1 = var_47; [L204] state_54 = init_55_arg_1 [L205] SORT_7 init_57_arg_1 = var_8; [L206] state_56 = init_57_arg_1 [L207] SORT_1 init_60_arg_1 = var_47; [L208] state_59 = init_60_arg_1 [L209] SORT_1 init_62_arg_1 = var_47; [L210] state_61 = init_62_arg_1 [L211] SORT_1 init_64_arg_1 = var_47; [L212] state_63 = init_64_arg_1 [L213] SORT_1 init_66_arg_1 = var_47; [L214] state_65 = init_66_arg_1 [L215] SORT_67 init_70_arg_1 = var_68; [L216] state_69 = init_70_arg_1 VAL [init_10_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, mask_SORT_11=4294967295, mask_SORT_1=1, mask_SORT_37=7, mask_SORT_67=3, mask_SORT_7=15, msb_SORT_11=2147483648, msb_SORT_1=1, msb_SORT_37=4, msb_SORT_67=2, msb_SORT_7=8, state_39=0, state_41=0, state_43=0, state_45=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_59=0, state_61=0, state_63=0, state_65=0, state_69=0, state_9=0, var_104=1, var_123=2, var_138=4, var_13=0, var_154=2, var_16=8, var_20=4, var_24=2, var_28=1, var_33=1, var_38=0, var_394=8, var_397=4, var_400=2, var_401=1, var_47=0, var_68=0, var_71=1, var_81=7, var_8=0] [L219] input_2 = __VERIFIER_nondet_uchar() [L220] input_3 = __VERIFIER_nondet_uchar() [L221] input_4 = __VERIFIER_nondet_uchar() [L222] input_5 = __VERIFIER_nondet_uchar() [L223] input_6 = __VERIFIER_nondet_uchar() [L224] input_75 = __VERIFIER_nondet_uchar() [L225] input_76 = __VERIFIER_nondet_uchar() [L226] input_77 = __VERIFIER_nondet_uchar() [L227] input_78 = __VERIFIER_nondet_uchar() [L228] input_79 = __VERIFIER_nondet_uchar() [L229] input_80 = __VERIFIER_nondet_uchar() [L230] input_85 = __VERIFIER_nondet_uchar() [L231] input_87 = __VERIFIER_nondet_uchar() [L232] input_89 = __VERIFIER_nondet_uchar() [L233] input_94 = __VERIFIER_nondet_uchar() [L234] input_96 = __VERIFIER_nondet_uchar() [L235] input_98 = __VERIFIER_nondet_uchar() [L236] input_102 = __VERIFIER_nondet_uchar() [L237] input_103 = __VERIFIER_nondet_uchar() [L238] input_108 = __VERIFIER_nondet_uchar() [L239] input_110 = __VERIFIER_nondet_uchar() [L240] input_115 = __VERIFIER_nondet_uchar() [L241] input_117 = __VERIFIER_nondet_uchar() [L242] input_121 = __VERIFIER_nondet_uchar() [L243] input_122 = __VERIFIER_nondet_uchar() [L244] input_127 = __VERIFIER_nondet_uchar() [L245] input_132 = __VERIFIER_nondet_uchar() [L246] input_136 = __VERIFIER_nondet_uchar() [L247] input_137 = __VERIFIER_nondet_uchar() [L248] input_149 = __VERIFIER_nondet_uchar() [L249] input_160 = __VERIFIER_nondet_uchar() [L250] input_161 = __VERIFIER_nondet_uchar() [L251] input_162 = __VERIFIER_nondet_uchar() [L252] input_163 = __VERIFIER_nondet_uchar() [L253] input_164 = __VERIFIER_nondet_uchar() [L254] input_165 = __VERIFIER_nondet_uchar() [L255] input_168 = __VERIFIER_nondet_uchar() [L256] input_170 = __VERIFIER_nondet_uchar() [L257] input_172 = __VERIFIER_nondet_uchar() [L258] input_177 = __VERIFIER_nondet_uchar() [L259] input_179 = __VERIFIER_nondet_uchar() [L260] input_181 = __VERIFIER_nondet_uchar() [L261] input_185 = __VERIFIER_nondet_uchar() [L262] input_186 = __VERIFIER_nondet_uchar() [L263] input_189 = __VERIFIER_nondet_uchar() [L264] input_191 = __VERIFIER_nondet_uchar() [L265] input_196 = __VERIFIER_nondet_uchar() [L266] input_198 = __VERIFIER_nondet_uchar() [L267] input_202 = __VERIFIER_nondet_uchar() [L268] input_203 = __VERIFIER_nondet_uchar() [L269] input_206 = __VERIFIER_nondet_uchar() [L270] input_211 = __VERIFIER_nondet_uchar() [L271] input_215 = __VERIFIER_nondet_uchar() [L272] input_216 = __VERIFIER_nondet_uchar() [L273] input_226 = __VERIFIER_nondet_uchar() [L274] input_233 = __VERIFIER_nondet_uchar() [L275] input_234 = __VERIFIER_nondet_uchar() [L276] input_235 = __VERIFIER_nondet_uchar() [L277] input_236 = __VERIFIER_nondet_uchar() [L278] input_237 = __VERIFIER_nondet_uchar() [L279] input_238 = __VERIFIER_nondet_uchar() [L280] input_241 = __VERIFIER_nondet_uchar() [L281] input_243 = __VERIFIER_nondet_uchar() [L282] input_245 = __VERIFIER_nondet_uchar() [L283] input_250 = __VERIFIER_nondet_uchar() [L284] input_252 = __VERIFIER_nondet_uchar() [L285] input_254 = __VERIFIER_nondet_uchar() [L286] input_258 = __VERIFIER_nondet_uchar() [L287] input_259 = __VERIFIER_nondet_uchar() [L288] input_262 = __VERIFIER_nondet_uchar() [L289] input_264 = __VERIFIER_nondet_uchar() [L290] input_269 = __VERIFIER_nondet_uchar() [L291] input_271 = __VERIFIER_nondet_uchar() [L292] input_275 = __VERIFIER_nondet_uchar() [L293] input_276 = __VERIFIER_nondet_uchar() [L294] input_279 = __VERIFIER_nondet_uchar() [L295] input_284 = __VERIFIER_nondet_uchar() [L296] input_288 = __VERIFIER_nondet_uchar() [L297] input_289 = __VERIFIER_nondet_uchar() [L298] input_299 = __VERIFIER_nondet_uchar() [L299] input_306 = __VERIFIER_nondet_uchar() [L300] input_307 = __VERIFIER_nondet_uchar() [L301] input_308 = __VERIFIER_nondet_uchar() [L302] input_309 = __VERIFIER_nondet_uchar() [L303] input_310 = __VERIFIER_nondet_uchar() [L304] input_311 = __VERIFIER_nondet_uchar() [L305] input_314 = __VERIFIER_nondet_uchar() [L306] input_316 = __VERIFIER_nondet_uchar() [L307] input_318 = __VERIFIER_nondet_uchar() [L308] input_323 = __VERIFIER_nondet_uchar() [L309] input_325 = __VERIFIER_nondet_uchar() [L310] input_327 = __VERIFIER_nondet_uchar() [L311] input_331 = __VERIFIER_nondet_uchar() [L312] input_332 = __VERIFIER_nondet_uchar() [L313] input_335 = __VERIFIER_nondet_uchar() [L314] input_337 = __VERIFIER_nondet_uchar() [L315] input_342 = __VERIFIER_nondet_uchar() [L316] input_344 = __VERIFIER_nondet_uchar() [L317] input_348 = __VERIFIER_nondet_uchar() [L318] input_349 = __VERIFIER_nondet_uchar() [L319] input_352 = __VERIFIER_nondet_uchar() [L320] input_357 = __VERIFIER_nondet_uchar() [L321] input_361 = __VERIFIER_nondet_uchar() [L322] input_362 = __VERIFIER_nondet_uchar() [L323] input_372 = __VERIFIER_nondet_uchar() [L324] input_391 = __VERIFIER_nondet_uchar() [L325] input_392 = __VERIFIER_nondet_uchar() [L326] input_393 = __VERIFIER_nondet_uchar() [L329] SORT_7 var_12_arg_0 = state_9; [L330] EXPR var_12_arg_0 & mask_SORT_7 [L330] var_12_arg_0 = var_12_arg_0 & mask_SORT_7 [L331] SORT_11 var_12 = var_12_arg_0; [L332] SORT_11 var_14_arg_0 = var_12; [L333] SORT_11 var_14_arg_1 = var_13; [L334] SORT_1 var_14 = var_14_arg_0 == var_14_arg_1; [L335] SORT_7 var_15_arg_0 = state_9; [L336] EXPR var_15_arg_0 & mask_SORT_7 [L336] var_15_arg_0 = var_15_arg_0 & mask_SORT_7 [L337] SORT_11 var_15 = var_15_arg_0; [L338] SORT_11 var_17_arg_0 = var_15; [L339] SORT_11 var_17_arg_1 = var_16; [L340] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L341] SORT_1 var_18_arg_0 = var_14; [L342] SORT_1 var_18_arg_1 = var_17; [L343] EXPR var_18_arg_0 | var_18_arg_1 [L343] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L344] SORT_7 var_19_arg_0 = state_9; [L345] EXPR var_19_arg_0 & mask_SORT_7 [L345] var_19_arg_0 = var_19_arg_0 & mask_SORT_7 [L346] SORT_11 var_19 = var_19_arg_0; [L347] SORT_11 var_21_arg_0 = var_19; [L348] SORT_11 var_21_arg_1 = var_20; [L349] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L350] SORT_1 var_22_arg_0 = var_18; [L351] SORT_1 var_22_arg_1 = var_21; [L352] EXPR var_22_arg_0 | var_22_arg_1 [L352] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L353] SORT_7 var_23_arg_0 = state_9; [L354] EXPR var_23_arg_0 & mask_SORT_7 [L354] var_23_arg_0 = var_23_arg_0 & mask_SORT_7 [L355] SORT_11 var_23 = var_23_arg_0; [L356] SORT_11 var_25_arg_0 = var_23; [L357] SORT_11 var_25_arg_1 = var_24; [L358] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L359] SORT_1 var_26_arg_0 = var_22; [L360] SORT_1 var_26_arg_1 = var_25; [L361] EXPR var_26_arg_0 | var_26_arg_1 [L361] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L362] SORT_7 var_27_arg_0 = state_9; [L363] EXPR var_27_arg_0 & mask_SORT_7 [L363] var_27_arg_0 = var_27_arg_0 & mask_SORT_7 [L364] SORT_11 var_27 = var_27_arg_0; [L365] SORT_11 var_29_arg_0 = var_27; [L366] SORT_11 var_29_arg_1 = var_28; [L367] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L368] SORT_1 var_30_arg_0 = var_26; [L369] SORT_1 var_30_arg_1 = var_29; [L370] EXPR var_30_arg_0 | var_30_arg_1 [L370] SORT_1 var_30 = var_30_arg_0 | var_30_arg_1; [L371] SORT_1 var_34_arg_0 = var_30; [L372] SORT_1 var_34 = ~var_34_arg_0; [L373] SORT_1 var_35_arg_0 = var_33; [L374] SORT_1 var_35_arg_1 = var_34; [L375] EXPR var_35_arg_0 & var_35_arg_1 [L375] SORT_1 var_35 = var_35_arg_0 & var_35_arg_1; [L376] EXPR var_35 & mask_SORT_1 [L376] var_35 = var_35 & mask_SORT_1 [L377] SORT_1 bad_36_arg_0 = var_35; [L378] CALL __VERIFIER_assert(!(bad_36_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: 1.3s, 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, 0.7s 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 [2023-11-23 21:12:29,733 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire --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 a9990c01c9a1f9597f7bc9fb384dfed8f76d280524d4aa5e1bce8b343e8f7c08 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:32,390 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:32,502 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-23 21:12:32,509 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:32,510 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:32,545 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:32,546 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:32,546 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:32,547 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:32,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:32,551 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:32,552 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:32,552 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:32,557 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:32,558 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:32,558 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:32,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:32,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:32,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:32,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:32,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:32,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:32,564 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:12:32,564 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:12:32,564 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:12:32,565 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:32,565 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:32,566 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:32,566 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:12:32,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:32,568 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:32,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:32,569 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:32,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:32,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:32,570 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:12:32,570 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:12:32,570 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:32,570 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:32,571 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:32,571 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:32,572 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_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9990c01c9a1f9597f7bc9fb384dfed8f76d280524d4aa5e1bce8b343e8f7c08 [2023-11-23 21:12:32,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:33,007 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:33,010 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:33,011 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:33,012 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:33,013 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c [2023-11-23 21:12:36,402 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:36,799 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:36,801 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c [2023-11-23 21:12:36,835 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data/60b1bcf8b/d2cedf7b964248989b2734ddb59f2bef/FLAGb502a7052 [2023-11-23 21:12:36,851 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/data/60b1bcf8b/d2cedf7b964248989b2734ddb59f2bef [2023-11-23 21:12:36,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:36,855 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:36,857 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:36,857 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:36,865 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:36,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:36" (1/1) ... [2023-11-23 21:12:36,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59e8506d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:36, skipping insertion in model container [2023-11-23 21:12:36,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:36" (1/1) ... [2023-11-23 21:12:36,960 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:37,214 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_1d67c958-88da-4852-9fd9-e7f40eef0acb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c[1245,1258] [2023-11-23 21:12:37,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:37,650 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:37,665 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_1d67c958-88da-4852-9fd9-e7f40eef0acb/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b03.c[1245,1258] [2023-11-23 21:12:37,769 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:37,785 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:37,785 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37 WrapperNode [2023-11-23 21:12:37,785 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:37,787 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:37,787 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:37,787 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:37,794 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,835 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,938 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1559 [2023-11-23 21:12:37,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:37,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:37,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:37,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:37,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,961 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:37,961 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:38,034 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:38,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:38,067 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:38,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:38,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:38,161 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:38,161 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:38,161 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:38,162 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (1/1) ... [2023-11-23 21:12:38,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:38,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:38,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:38,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:38,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:38,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:12:38,231 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:38,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:38,574 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:38,577 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:40,153 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:40,256 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:40,256 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:12:40,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:40 BoogieIcfgContainer [2023-11-23 21:12:40,257 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:40,261 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:40,261 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:40,264 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:40,265 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:36" (1/3) ... [2023-11-23 21:12:40,266 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e399cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:40, skipping insertion in model container [2023-11-23 21:12:40,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:37" (2/3) ... [2023-11-23 21:12:40,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e399cfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:40, skipping insertion in model container [2023-11-23 21:12:40,268 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:40" (3/3) ... [2023-11-23 21:12:40,269 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b03.c [2023-11-23 21:12:40,289 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:40,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:40,349 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:40,358 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;@7d1169f4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:40,359 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:40,363 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) [2023-11-23 21:12:40,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:12:40,370 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:40,372 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:12:40,372 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:40,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:40,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-23 21:12:40,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:40,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [257230933] [2023-11-23 21:12:40,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:40,397 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 [2023-11-23 21:12:40,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:40,402 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:12:40,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:40,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-23 21:12:40,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:41,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:41,211 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:41,212 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:41,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [257230933] [2023-11-23 21:12:41,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [257230933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:41,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:41,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:41,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029831209] [2023-11-23 21:12:41,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:41,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:12:41,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:41,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:12:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:12:41,263 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) [2023-11-23 21:12:41,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:41,522 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-23 21:12:41,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:12:41,524 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 [2023-11-23 21:12:41,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:41,532 INFO L225 Difference]: With dead ends: 16 [2023-11-23 21:12:41,533 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 21:12:41,535 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 21:12:41,539 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:41,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 21:12:41,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 21:12:41,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-23 21:12:41,588 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) [2023-11-23 21:12:41,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-23 21:12:41,591 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-23 21:12:41,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:41,592 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-23 21:12:41,592 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) [2023-11-23 21:12:41,592 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-23 21:12:41,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:12:41,593 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:41,593 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 21:12:41,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:41,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:41,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:41,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:41,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-23 21:12:41,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:41,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7965400] [2023-11-23 21:12:41,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:41,804 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 [2023-11-23 21:12:41,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:41,808 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:12:41,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:12:43,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:43,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 39 conjunts are in the unsatisfiable core [2023-11-23 21:12:43,579 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:43,931 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:43,932 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:44,703 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:44,703 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:12:44,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7965400] [2023-11-23 21:12:44,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7965400] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:44,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1358005950] [2023-11-23 21:12:44,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:44,710 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:12:44,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:12:44,754 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:12:44,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-23 21:12:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:46,166 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-23 21:12:46,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:46,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:46,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:49,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1358005950] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:49,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [668779384] [2023-11-23 21:12:49,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:49,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:49,903 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:49,908 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:12:49,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:12:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:50,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 44 conjunts are in the unsatisfiable core [2023-11-23 21:12:50,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:50,839 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:50,839 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:51,832 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:51,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [668779384] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:51,834 INFO L185 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2023-11-23 21:12:51,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 5, 5] total 10 [2023-11-23 21:12:51,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65269900] [2023-11-23 21:12:51,836 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2023-11-23 21:12:51,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-23 21:12:51,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:12:51,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-23 21:12:51,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-23 21:12:51,842 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 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) [2023-11-23 21:12:52,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:52,214 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-23 21:12:52,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 21:12:52,215 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 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 7 [2023-11-23 21:12:52,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:52,215 INFO L225 Difference]: With dead ends: 14 [2023-11-23 21:12:52,215 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 21:12:52,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2023-11-23 21:12:52,217 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 8 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:52,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-23 21:12:52,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 21:12:52,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-23 21:12:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:12:52,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-23 21:12:52,222 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-23 21:12:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:52,223 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-23 21:12:52,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 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) [2023-11-23 21:12:52,223 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-23 21:12:52,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 21:12:52,224 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:52,225 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-23 21:12:52,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:52,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:52,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-23 21:12:52,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:52,836 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:52,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:52,837 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-23 21:12:52,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:12:52,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138387341] [2023-11-23 21:12:52,841 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:12:52,841 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 [2023-11-23 21:12:52,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:12:52,843 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:12:52,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/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 (6)] Waiting until timeout for monitored process [2023-11-23 21:12:57,321 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 21:12:57,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:12:57,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 69 conjunts are in the unsatisfiable core [2023-11-23 21:12:57,385 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:57,991 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:12:57,991 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:13:08,049 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:13:08,050 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:13:08,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138387341] [2023-11-23 21:13:08,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138387341] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:13:08,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1083059049] [2023-11-23 21:13:08,051 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 21:13:08,051 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-23 21:13:08,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 [2023-11-23 21:13:08,052 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-23 21:13:08,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d67c958-88da-4852-9fd9-e7f40eef0acb/bin/utaipan-verify-mE87zJ7Ire/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process