./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX --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 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:53:55,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:53:55,212 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:53:55,223 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:53:55,224 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:53:55,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:53:55,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:53:55,281 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:53:55,282 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:53:55,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:53:55,289 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:53:55,290 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:53:55,291 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:53:55,293 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:53:55,294 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:53:55,294 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:53:55,295 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:53:55,295 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:53:55,296 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:53:55,297 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:53:55,297 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:53:55,298 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:53:55,300 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:53:55,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:53:55,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:53:55,301 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:53:55,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:53:55,302 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:53:55,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:53:55,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:53:55,305 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:53:55,306 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:53:55,306 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:53:55,306 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:53:55,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:53:55,307 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:53:55,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:53:55,308 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:53:55,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:53:55,309 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:53:55,309 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:53:55,310 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:53:55,310 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_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 [2023-11-12 00:53:55,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:53:55,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:53:55,667 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:53:55,668 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:53:55,669 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:53:55,670 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-12 00:53:58,906 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:53:59,360 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:53:59,360 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-12 00:53:59,385 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data/d1fe0ab72/9f76cf2fb74c4b6abf2a85af6f17ab2a/FLAG9d70ee407 [2023-11-12 00:53:59,401 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data/d1fe0ab72/9f76cf2fb74c4b6abf2a85af6f17ab2a [2023-11-12 00:53:59,404 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:53:59,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:53:59,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:53:59,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:53:59,416 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:53:59,417 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:59" (1/1) ... [2023-11-12 00:53:59,419 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af44436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:53:59, skipping insertion in model container [2023-11-12 00:53:59,420 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:53:59" (1/1) ... [2023-11-12 00:53:59,537 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:53:59,768 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_79f41482-d9d4-4586-9038-3d07d79c236d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-12 00:54:00,454 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:00,471 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:54:00,488 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_79f41482-d9d4-4586-9038-3d07d79c236d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-12 00:54:00,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:00,757 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:54:00,758 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00 WrapperNode [2023-11-12 00:54:00,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:00,760 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:00,761 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:54:00,761 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:54:00,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:00,860 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,391 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4176 [2023-11-12 00:54:01,392 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:01,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:54:01,394 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:54:01,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:54:01,404 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,405 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,483 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,484 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,617 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,705 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,732 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:54:01,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:54:01,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:54:01,819 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:54:01,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (1/1) ... [2023-11-12 00:54:01,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:01,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:01,863 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:54:01,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:54:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:54:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:54:01,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:54:01,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:54:02,411 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:54:02,413 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:54:05,789 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:54:18,682 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:54:18,683 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:54:18,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:18 BoogieIcfgContainer [2023-11-12 00:54:18,685 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:54:18,689 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:54:18,689 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:54:18,693 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:54:18,694 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:53:59" (1/3) ... [2023-11-12 00:54:18,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1206fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:18, skipping insertion in model container [2023-11-12 00:54:18,695 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:00" (2/3) ... [2023-11-12 00:54:18,695 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1206fef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:18, skipping insertion in model container [2023-11-12 00:54:18,696 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:18" (3/3) ... [2023-11-12 00:54:18,697 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal179.c [2023-11-12 00:54:18,717 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:54:18,717 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:54:18,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:54:18,785 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;@69c8010, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:54:18,786 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:54:18,790 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) [2023-11-12 00:54:18,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:54:18,798 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:18,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 00:54:18,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:54:18,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:18,807 INFO L85 PathProgramCache]: Analyzing trace with hash 102216204, now seen corresponding path program 1 times [2023-11-12 00:54:18,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:54:18,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598974897] [2023-11-12 00:54:18,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:18,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:54:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:54:19,696 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:54:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:54:20,275 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-12 00:54:20,279 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 00:54:20,280 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 00:54:20,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:54:20,287 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-12 00:54:20,293 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 00:54:20,355 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-12 00:54:20,384 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:54:20 BoogieIcfgContainer [2023-11-12 00:54:20,385 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 00:54:20,387 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:54:20,387 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:54:20,387 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:54:20,388 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:18" (3/4) ... [2023-11-12 00:54:20,393 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 00:54:20,394 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:54:20,395 INFO L158 Benchmark]: Toolchain (without parser) took 20989.72ms. Allocated memory was 199.2MB in the beginning and 6.3GB in the end (delta: 6.1GB). Free memory was 150.4MB in the beginning and 6.0GB in the end (delta: -5.9GB). Peak memory consumption was 205.6MB. Max. memory is 16.1GB. [2023-11-12 00:54:20,396 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:54:20,397 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1351.54ms. Allocated memory is still 199.2MB. Free memory was 150.1MB in the beginning and 132.9MB in the end (delta: 17.1MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. [2023-11-12 00:54:20,399 INFO L158 Benchmark]: Boogie Procedure Inliner took 633.25ms. Allocated memory was 199.2MB in the beginning and 281.0MB in the end (delta: 81.8MB). Free memory was 132.9MB in the beginning and 189.5MB in the end (delta: -56.5MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. [2023-11-12 00:54:20,405 INFO L158 Benchmark]: Boogie Preprocessor took 424.50ms. Allocated memory was 281.0MB in the beginning and 396.4MB in the end (delta: 115.3MB). Free memory was 189.5MB in the beginning and 286.1MB in the end (delta: -96.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-12 00:54:20,406 INFO L158 Benchmark]: RCFGBuilder took 16866.44ms. Allocated memory was 396.4MB in the beginning and 6.3GB in the end (delta: 5.9GB). Free memory was 285.8MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 547.4MB. Max. memory is 16.1GB. [2023-11-12 00:54:20,407 INFO L158 Benchmark]: TraceAbstraction took 1695.82ms. Allocated memory is still 6.3GB. Free memory was 5.8GB in the beginning and 6.0GB in the end (delta: -233.8MB). Peak memory consumption was 112.2MB. Max. memory is 16.1GB. [2023-11-12 00:54:20,408 INFO L158 Benchmark]: Witness Printer took 7.35ms. Allocated memory is still 6.3GB. Free memory was 6.0GB in the beginning and 6.0GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:54:20,416 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory is still 78.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1351.54ms. Allocated memory is still 199.2MB. Free memory was 150.1MB in the beginning and 132.9MB in the end (delta: 17.1MB). Peak memory consumption was 57.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 633.25ms. Allocated memory was 199.2MB in the beginning and 281.0MB in the end (delta: 81.8MB). Free memory was 132.9MB in the beginning and 189.5MB in the end (delta: -56.5MB). Peak memory consumption was 86.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 424.50ms. Allocated memory was 281.0MB in the beginning and 396.4MB in the end (delta: 115.3MB). Free memory was 189.5MB in the beginning and 286.1MB in the end (delta: -96.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * RCFGBuilder took 16866.44ms. Allocated memory was 396.4MB in the beginning and 6.3GB in the end (delta: 5.9GB). Free memory was 285.8MB in the beginning and 5.8GB in the end (delta: -5.5GB). Peak memory consumption was 547.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1695.82ms. Allocated memory is still 6.3GB. Free memory was 5.8GB in the beginning and 6.0GB in the end (delta: -233.8MB). Peak memory consumption was 112.2MB. Max. memory is 16.1GB. * Witness Printer took 7.35ms. Allocated memory is still 6.3GB. Free memory was 6.0GB in the beginning and 6.0GB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 301, overapproximation of bitwiseAnd at line 217. 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 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_9 mask_SORT_9 = (SORT_9)-1 >> (sizeof(SORT_9) * 8 - 2); [L33] const SORT_9 msb_SORT_9 = (SORT_9)1 << (2 - 1); [L35] const SORT_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 3); [L36] const SORT_16 msb_SORT_16 = (SORT_16)1 << (3 - 1); [L38] const SORT_105 mask_SORT_105 = (SORT_105)-1 >> (sizeof(SORT_105) * 8 - 31); [L39] const SORT_105 msb_SORT_105 = (SORT_105)1 << (31 - 1); [L41] const SORT_1 var_63 = 0; [L42] const SORT_1 var_79 = 1; [L43] const SORT_9 var_83 = 0; [L44] const SORT_9 var_87 = 3; [L45] const SORT_9 var_95 = 2; [L46] const SORT_105 var_106 = 1618477056; [L47] const SORT_105 var_109 = 1618478076; [L48] const SORT_9 var_118 = 1; [L49] const SORT_16 var_195 = 0; [L50] const SORT_16 var_199 = 2; [L51] const SORT_16 var_201 = 4; [L52] const SORT_16 var_214 = 3; [L53] const SORT_16 var_274 = 5; [L54] const SORT_16 var_276 = 7; [L55] const SORT_16 var_289 = 6; [L56] const SORT_16 var_335 = 1; [L58] SORT_1 input_2; [L59] SORT_1 input_3; [L60] SORT_1 input_4; [L61] SORT_1 input_5; [L62] SORT_1 input_6; [L63] SORT_7 input_8; [L64] SORT_9 input_10; [L65] SORT_1 input_11; [L66] SORT_7 input_12; [L67] SORT_1 input_13; [L68] SORT_1 input_14; [L69] SORT_1 input_15; [L70] SORT_16 input_17; [L71] SORT_1 input_18; [L72] SORT_1 input_19; [L73] SORT_1 input_20; [L74] SORT_1 input_21; [L75] SORT_1 input_22; [L76] SORT_1 input_23; [L77] SORT_9 input_24; [L78] SORT_9 input_25; [L79] SORT_1 input_26; [L80] SORT_1 input_27; [L81] SORT_9 input_28; [L82] SORT_9 input_29; [L83] SORT_1 input_30; [L84] SORT_1 input_31; [L85] SORT_1 input_32; [L86] SORT_1 input_33; [L87] SORT_1 input_34; [L88] SORT_1 input_35; [L89] SORT_1 input_36; [L90] SORT_9 input_37; [L91] SORT_9 input_38; [L92] SORT_1 input_39; [L93] SORT_1 input_40; [L94] SORT_1 input_41; [L95] SORT_1 input_42; [L96] SORT_1 input_43; [L97] SORT_1 input_44; [L98] SORT_1 input_45; [L99] SORT_1 input_46; [L100] SORT_1 input_47; [L101] SORT_1 input_48; [L102] SORT_9 input_49; [L103] SORT_9 input_50; [L104] SORT_1 input_51; [L105] SORT_1 input_52; [L106] SORT_1 input_53; [L107] SORT_1 input_54; [L108] SORT_9 input_55; [L109] SORT_9 input_56; [L110] SORT_9 input_57; [L111] SORT_9 input_58; [L112] SORT_1 input_59; [L113] SORT_1 input_60; [L114] SORT_16 input_61; [L115] SORT_16 input_62; [L117] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L117] SORT_1 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L118] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L119] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L120] SORT_1 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L121] SORT_9 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L122] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L122] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L123] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L124] SORT_9 state_115 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L125] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L125] SORT_9 state_127 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L126] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L126] SORT_1 state_130 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L127] SORT_9 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L128] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L128] SORT_1 state_142 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L129] SORT_1 state_182 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L130] SORT_1 state_185 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 [L131] SORT_16 state_196 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L132] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L132] SORT_1 state_261 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L133] SORT_1 state_264 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L134] SORT_1 state_313 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L135] SORT_9 state_397 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L136] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L136] SORT_1 state_401 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L137] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L137] SORT_1 state_408 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L138] SORT_9 state_415 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L139] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L139] SORT_9 state_426 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L140] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L140] SORT_1 state_429 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L141] EXPR __VERIFIER_nondet_uchar() & mask_SORT_9 [L141] SORT_9 state_434 = __VERIFIER_nondet_uchar() & mask_SORT_9; [L142] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L142] SORT_1 state_441 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L143] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L143] SORT_1 state_472 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L144] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L144] SORT_1 state_475 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L145] EXPR __VERIFIER_nondet_uchar() & mask_SORT_16 [L145] SORT_16 state_485 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L146] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L146] SORT_1 state_547 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L147] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L147] SORT_1 state_550 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L148] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L148] SORT_1 state_596 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L150] SORT_1 init_65_arg_1 = var_63; [L151] state_64 = init_65_arg_1 [L152] SORT_1 init_68_arg_1 = var_63; [L153] state_67 = init_68_arg_1 [L154] SORT_1 init_70_arg_1 = var_63; [L155] state_69 = init_70_arg_1 [L156] SORT_1 init_73_arg_1 = var_63; [L157] state_72 = init_73_arg_1 [L158] SORT_9 init_85_arg_1 = var_83; [L159] state_84 = init_85_arg_1 [L160] SORT_1 init_90_arg_1 = var_63; [L161] state_89 = init_90_arg_1 [L162] SORT_1 init_98_arg_1 = var_63; [L163] state_97 = init_98_arg_1 [L164] SORT_9 init_116_arg_1 = var_83; [L165] state_115 = init_116_arg_1 [L166] SORT_9 init_128_arg_1 = var_83; [L167] state_127 = init_128_arg_1 [L168] SORT_1 init_131_arg_1 = var_63; [L169] state_130 = init_131_arg_1 [L170] SORT_9 init_136_arg_1 = var_83; [L171] state_135 = init_136_arg_1 [L172] SORT_1 init_143_arg_1 = var_63; [L173] state_142 = init_143_arg_1 [L174] SORT_1 init_183_arg_1 = var_63; [L175] state_182 = init_183_arg_1 [L176] SORT_1 init_186_arg_1 = var_63; [L177] state_185 = init_186_arg_1 [L178] SORT_16 init_197_arg_1 = var_195; [L179] state_196 = init_197_arg_1 [L180] SORT_1 init_262_arg_1 = var_63; [L181] state_261 = init_262_arg_1 [L182] SORT_1 init_265_arg_1 = var_63; [L183] state_264 = init_265_arg_1 [L184] SORT_1 init_314_arg_1 = var_63; [L185] state_313 = init_314_arg_1 [L186] SORT_9 init_398_arg_1 = var_83; [L187] state_397 = init_398_arg_1 [L188] SORT_1 init_402_arg_1 = var_63; [L189] state_401 = init_402_arg_1 [L190] SORT_1 init_409_arg_1 = var_63; [L191] state_408 = init_409_arg_1 [L192] SORT_9 init_416_arg_1 = var_83; [L193] state_415 = init_416_arg_1 [L194] SORT_9 init_427_arg_1 = var_83; [L195] state_426 = init_427_arg_1 [L196] SORT_1 init_430_arg_1 = var_63; [L197] state_429 = init_430_arg_1 [L198] SORT_9 init_435_arg_1 = var_83; [L199] state_434 = init_435_arg_1 [L200] SORT_1 init_442_arg_1 = var_63; [L201] state_441 = init_442_arg_1 [L202] SORT_1 init_473_arg_1 = var_63; [L203] state_472 = init_473_arg_1 [L204] SORT_1 init_476_arg_1 = var_63; [L205] state_475 = init_476_arg_1 [L206] SORT_16 init_486_arg_1 = var_195; [L207] state_485 = init_486_arg_1 [L208] SORT_1 init_548_arg_1 = var_63; [L209] state_547 = init_548_arg_1 [L210] SORT_1 init_551_arg_1 = var_63; [L211] state_550 = init_551_arg_1 [L212] SORT_1 init_597_arg_1 = var_63; [L213] state_596 = init_597_arg_1 VAL [init_116_arg_1=0, init_128_arg_1=0, init_131_arg_1=0, init_136_arg_1=0, init_143_arg_1=0, init_183_arg_1=0, init_186_arg_1=0, init_197_arg_1=0, init_262_arg_1=0, init_265_arg_1=0, init_314_arg_1=0, init_398_arg_1=0, init_402_arg_1=0, init_409_arg_1=0, init_416_arg_1=0, init_427_arg_1=0, init_430_arg_1=0, init_435_arg_1=0, init_442_arg_1=0, init_473_arg_1=0, init_476_arg_1=0, init_486_arg_1=0, init_548_arg_1=0, init_551_arg_1=0, init_597_arg_1=0, init_65_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_73_arg_1=0, init_85_arg_1=0, init_90_arg_1=0, init_98_arg_1=0, mask_SORT_105=2147483647, mask_SORT_16=7, mask_SORT_1=1, mask_SORT_7=4294967295, mask_SORT_9=3, msb_SORT_105=1073741824, msb_SORT_16=4, msb_SORT_1=1, msb_SORT_7=2147483648, msb_SORT_9=2, state_115=0, state_127=0, state_130=0, state_135=0, state_142=0, state_182=0, state_185=0, state_196=0, state_261=0, state_264=0, state_313=0, state_397=0, state_401=0, state_408=0, state_415=0, state_426=0, state_429=0, state_434=0, state_441=0, state_472=0, state_475=0, state_485=0, state_547=0, state_550=0, state_596=0, state_64=0, state_67=0, state_69=0, state_72=0, state_84=0, state_89=0, state_97=0, var_106=1618477056, var_109=1618478076, var_118=1, var_195=0, var_199=2, var_201=4, var_214=3, var_274=5, var_276=7, var_289=6, var_335=1, var_63=0, var_79=1, var_83=0, var_87=3, var_95=2] [L216] input_2 = __VERIFIER_nondet_uchar() [L217] EXPR input_2 & mask_SORT_1 [L217] input_2 = input_2 & mask_SORT_1 [L218] input_3 = __VERIFIER_nondet_uchar() [L219] EXPR input_3 & mask_SORT_1 [L219] input_3 = input_3 & mask_SORT_1 [L220] input_4 = __VERIFIER_nondet_uchar() [L221] EXPR input_4 & mask_SORT_1 [L221] input_4 = input_4 & mask_SORT_1 [L222] input_5 = __VERIFIER_nondet_uchar() [L223] input_6 = __VERIFIER_nondet_uchar() [L224] input_8 = __VERIFIER_nondet_uint() [L225] EXPR input_8 & mask_SORT_7 [L225] input_8 = input_8 & mask_SORT_7 [L226] input_10 = __VERIFIER_nondet_uchar() [L227] input_11 = __VERIFIER_nondet_uchar() [L228] input_12 = __VERIFIER_nondet_uint() [L229] EXPR input_12 & mask_SORT_7 [L229] input_12 = input_12 & mask_SORT_7 [L230] input_13 = __VERIFIER_nondet_uchar() [L231] EXPR input_13 & mask_SORT_1 [L231] input_13 = input_13 & mask_SORT_1 [L232] input_14 = __VERIFIER_nondet_uchar() [L233] EXPR input_14 & mask_SORT_1 [L233] input_14 = input_14 & mask_SORT_1 [L234] input_15 = __VERIFIER_nondet_uchar() [L235] EXPR input_15 & mask_SORT_1 [L235] input_15 = input_15 & mask_SORT_1 [L236] input_17 = __VERIFIER_nondet_uchar() [L237] input_18 = __VERIFIER_nondet_uchar() [L238] input_19 = __VERIFIER_nondet_uchar() [L239] input_20 = __VERIFIER_nondet_uchar() [L240] input_21 = __VERIFIER_nondet_uchar() [L241] input_22 = __VERIFIER_nondet_uchar() [L242] input_23 = __VERIFIER_nondet_uchar() [L243] input_24 = __VERIFIER_nondet_uchar() [L244] input_25 = __VERIFIER_nondet_uchar() [L245] input_26 = __VERIFIER_nondet_uchar() [L246] input_27 = __VERIFIER_nondet_uchar() [L247] input_28 = __VERIFIER_nondet_uchar() [L248] input_29 = __VERIFIER_nondet_uchar() [L249] input_30 = __VERIFIER_nondet_uchar() [L250] input_31 = __VERIFIER_nondet_uchar() [L251] input_32 = __VERIFIER_nondet_uchar() [L252] input_33 = __VERIFIER_nondet_uchar() [L253] input_34 = __VERIFIER_nondet_uchar() [L254] input_35 = __VERIFIER_nondet_uchar() [L255] input_36 = __VERIFIER_nondet_uchar() [L256] input_37 = __VERIFIER_nondet_uchar() [L257] input_38 = __VERIFIER_nondet_uchar() [L258] input_39 = __VERIFIER_nondet_uchar() [L259] input_40 = __VERIFIER_nondet_uchar() [L260] input_41 = __VERIFIER_nondet_uchar() [L261] input_42 = __VERIFIER_nondet_uchar() [L262] input_43 = __VERIFIER_nondet_uchar() [L263] input_44 = __VERIFIER_nondet_uchar() [L264] input_45 = __VERIFIER_nondet_uchar() [L265] input_46 = __VERIFIER_nondet_uchar() [L266] input_47 = __VERIFIER_nondet_uchar() [L267] input_48 = __VERIFIER_nondet_uchar() [L268] input_49 = __VERIFIER_nondet_uchar() [L269] input_50 = __VERIFIER_nondet_uchar() [L270] input_51 = __VERIFIER_nondet_uchar() [L271] input_52 = __VERIFIER_nondet_uchar() [L272] input_53 = __VERIFIER_nondet_uchar() [L273] input_54 = __VERIFIER_nondet_uchar() [L274] input_55 = __VERIFIER_nondet_uchar() [L275] input_56 = __VERIFIER_nondet_uchar() [L276] input_57 = __VERIFIER_nondet_uchar() [L277] input_58 = __VERIFIER_nondet_uchar() [L278] input_59 = __VERIFIER_nondet_uchar() [L279] input_60 = __VERIFIER_nondet_uchar() [L280] input_61 = __VERIFIER_nondet_uchar() [L281] input_62 = __VERIFIER_nondet_uchar() [L284] SORT_1 var_66_arg_0 = state_64; [L285] SORT_1 var_66 = ~var_66_arg_0; [L286] SORT_1 var_71_arg_0 = state_69; [L287] SORT_1 var_71_arg_1 = state_67; [L288] SORT_1 var_71_arg_2 = input_26; [L289] SORT_1 var_71 = var_71_arg_0 ? var_71_arg_1 : var_71_arg_2; [L290] EXPR var_71 & mask_SORT_1 [L290] var_71 = var_71 & mask_SORT_1 [L291] SORT_1 var_74_arg_0 = state_69; [L292] SORT_1 var_74_arg_1 = state_72; [L293] SORT_1 var_74_arg_2 = input_26; [L294] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L295] EXPR var_74 & mask_SORT_1 [L295] var_74 = var_74 & mask_SORT_1 [L296] SORT_1 var_75_arg_0 = var_71; [L297] SORT_1 var_75_arg_1 = var_74; [L298] SORT_1 var_75 = var_75_arg_0 == var_75_arg_1; [L299] SORT_1 var_76_arg_0 = var_66; [L300] SORT_1 var_76_arg_1 = var_75; [L301] EXPR var_76_arg_0 | var_76_arg_1 [L301] SORT_1 var_76 = var_76_arg_0 | var_76_arg_1; [L302] SORT_1 var_80_arg_0 = var_76; [L303] SORT_1 var_80 = ~var_80_arg_0; [L304] SORT_1 var_81_arg_0 = var_79; [L305] SORT_1 var_81_arg_1 = var_80; [L306] EXPR var_81_arg_0 & var_81_arg_1 [L306] SORT_1 var_81 = var_81_arg_0 & var_81_arg_1; [L307] EXPR var_81 & mask_SORT_1 [L307] var_81 = var_81 & mask_SORT_1 [L308] SORT_1 bad_82_arg_0 = var_81; [L309] CALL __VERIFIER_assert(!(bad_82_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: 1.5s, 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 [2023-11-12 00:54:20,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX --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 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:54:23,437 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:54:23,573 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-12 00:54:23,582 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:54:23,583 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:54:23,627 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:54:23,628 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:54:23,628 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:54:23,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:54:23,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:54:23,635 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:54:23,636 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:54:23,636 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:54:23,638 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:54:23,639 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:54:23,639 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:54:23,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:54:23,641 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:54:23,642 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:54:23,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:54:23,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:54:23,644 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:54:23,644 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 00:54:23,645 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 00:54:23,645 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 00:54:23,646 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:54:23,646 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:54:23,647 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:54:23,647 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 00:54:23,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:54:23,649 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:23,650 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:54:23,650 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:54:23,650 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:54:23,651 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-12 00:54:23,651 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 00:54:23,651 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:54:23,652 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:54:23,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:54:23,653 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_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 85122204d036b5910f53a88c39bdbbba827d7c0829526b0f1f0f57c9eea94673 [2023-11-12 00:54:24,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:54:24,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:54:24,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:54:24,167 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:54:24,168 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:54:24,170 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-12 00:54:27,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:54:27,832 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:54:27,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c [2023-11-12 00:54:27,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data/bd730d4aa/f657ffda75634dd5b84495c04e68438f/FLAG9d3c761fc [2023-11-12 00:54:27,880 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/data/bd730d4aa/f657ffda75634dd5b84495c04e68438f [2023-11-12 00:54:27,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:54:27,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:54:27,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:27,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:54:27,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:54:27,905 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:27" (1/1) ... [2023-11-12 00:54:27,906 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f60a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:27, skipping insertion in model container [2023-11-12 00:54:27,907 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:54:27" (1/1) ... [2023-11-12 00:54:28,043 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:54:28,371 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_79f41482-d9d4-4586-9038-3d07d79c236d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-12 00:54:28,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:28,834 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:54:28,846 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_79f41482-d9d4-4586-9038-3d07d79c236d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal179.c[1246,1259] [2023-11-12 00:54:28,971 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:54:28,987 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:54:28,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28 WrapperNode [2023-11-12 00:54:28,988 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:54:28,989 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:28,989 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:54:28,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:54:28,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,113 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,249 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2274 [2023-11-12 00:54:29,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:54:29,251 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:54:29,251 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:54:29,251 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:54:29,262 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,301 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,301 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,370 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,406 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,432 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:54:29,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:54:29,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:54:29,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:54:29,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (1/1) ... [2023-11-12 00:54:29,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:54:29,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:54:29,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:54:29,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:54:29,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:54:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 00:54:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:54:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:54:30,007 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:54:30,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:54:34,859 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:54:34,865 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:54:34,866 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:54:34,868 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:34 BoogieIcfgContainer [2023-11-12 00:54:34,868 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:54:34,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:54:34,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:54:34,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:54:34,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:54:27" (1/3) ... [2023-11-12 00:54:34,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa7c488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:34, skipping insertion in model container [2023-11-12 00:54:34,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:54:28" (2/3) ... [2023-11-12 00:54:34,881 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fa7c488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:54:34, skipping insertion in model container [2023-11-12 00:54:34,881 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:54:34" (3/3) ... [2023-11-12 00:54:34,883 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal179.c [2023-11-12 00:54:34,905 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:54:34,905 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:54:34,952 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:54:34,959 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;@782a3789, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:54:34,959 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:54:34,964 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-12 00:54:34,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:54:34,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:34,973 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-12 00:54:34,973 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:54:34,980 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2023-11-12 00:54:34,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:54:34,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106845367] [2023-11-12 00:54:34,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:34,996 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 [2023-11-12 00:54:34,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:54:35,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:54:35,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:54:35,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:35,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-12 00:54:35,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:35,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:35,686 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 00:54:35,687 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:54:35,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106845367] [2023-11-12 00:54:35,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106845367] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:54:35,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:54:35,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:54:35,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616553637] [2023-11-12 00:54:35,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:54:35,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:54:35,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-12 00:54:35,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:54:35,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:54:35,727 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-12 00:54:36,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:54:36,490 INFO L93 Difference]: Finished difference Result 19 states and 27 transitions. [2023-11-12 00:54:36,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:54:36,493 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 5 [2023-11-12 00:54:36,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:54:36,502 INFO L225 Difference]: With dead ends: 19 [2023-11-12 00:54:36,502 INFO L226 Difference]: Without dead ends: 10 [2023-11-12 00:54:36,505 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 00:54:36,511 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-12 00:54:36,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-12 00:54:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2023-11-12 00:54:36,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2023-11-12 00:54:36,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2023-11-12 00:54:36,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-12 00:54:36,544 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-11-12 00:54:36,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:54:36,545 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-11-12 00:54:36,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2023-11-12 00:54:36,545 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-12 00:54:36,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:54:36,546 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:54:36,546 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-12 00:54:36,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:54:36,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:54:36,759 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:54:36,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:54:36,760 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2023-11-12 00:54:36,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-12 00:54:36,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [244323701] [2023-11-12 00:54:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:36,765 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 [2023-11-12 00:54:36,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/mathsat [2023-11-12 00:54:36,767 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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) [2023-11-12 00:54:36,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/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 [2023-11-12 00:54:39,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:54:39,864 INFO L262 TraceCheckSpWp]: Trace formula consists of 1890 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-12 00:54:39,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:54:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:40,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:54:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:54:41,126 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-12 00:54:41,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [244323701] [2023-11-12 00:54:41,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [244323701] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:54:41,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [278918309] [2023-11-12 00:54:41,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:54:41,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-12 00:54:41,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/cvc4 [2023-11-12 00:54:41,133 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-12 00:54:41,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_79f41482-d9d4-4586-9038-3d07d79c236d/bin/utaipan-verify-NcY6lQBIFX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process