./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:54:29,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:54:29,224 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 03:54:29,229 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:54:29,229 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:54:29,252 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:54:29,253 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:54:29,254 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:54:29,254 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:54:29,255 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:54:29,256 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:54:29,256 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:54:29,257 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:54:29,257 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:54:29,258 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:54:29,258 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:54:29,259 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:54:29,259 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:54:29,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:54:29,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:54:29,261 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:54:29,261 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:54:29,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:54:29,262 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:54:29,263 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:54:29,263 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:54:29,263 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:54:29,264 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:54:29,264 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:54:29,265 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:54:29,265 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:54:29,266 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:54:29,266 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:54:29,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:54:29,267 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:54:29,267 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:54:29,268 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:54:29,268 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:54:29,269 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:54:29,269 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 [2023-11-29 03:54:29,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:54:29,521 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:54:29,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:54:29,525 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:54:29,525 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:54:29,527 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2023-11-29 03:54:32,315 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:54:32,523 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:54:32,523 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2023-11-29 03:54:32,532 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data/7f9d40f97/16fd402bce144becbbae022b8389ce4c/FLAG275ddb9ec [2023-11-29 03:54:32,544 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data/7f9d40f97/16fd402bce144becbbae022b8389ce4c [2023-11-29 03:54:32,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:54:32,548 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:54:32,549 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:54:32,549 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:54:32,553 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:54:32,554 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,555 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335d3ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32, skipping insertion in model container [2023-11-29 03:54:32,555 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,586 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:54:32,733 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_537ec8e5-bc54-4faa-bce7-4a9805d203d8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2023-11-29 03:54:32,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:54:32,796 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:54:32,809 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_537ec8e5-bc54-4faa-bce7-4a9805d203d8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2023-11-29 03:54:32,839 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:54:32,854 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:54:32,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32 WrapperNode [2023-11-29 03:54:32,855 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:54:32,856 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:54:32,856 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:54:32,856 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:54:32,863 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,875 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,922 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 287 [2023-11-29 03:54:32,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:54:32,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:54:32,924 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:54:32,924 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:54:32,935 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,935 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,941 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,962 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 03:54:32,962 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,962 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,980 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,985 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:32,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:33,003 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:54:33,004 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:54:33,004 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:54:33,004 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:54:33,005 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (1/1) ... [2023-11-29 03:54:33,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:54:33,022 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:54:33,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:54:33,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:54:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:54:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:54:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 03:54:33,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:54:33,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:54:33,166 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:54:33,168 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:54:33,560 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:54:33,588 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:54:33,588 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:54:33,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:54:33 BoogieIcfgContainer [2023-11-29 03:54:33,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:54:33,614 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:54:33,615 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:54:33,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:54:33,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:54:32" (1/3) ... [2023-11-29 03:54:33,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fbdd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:54:33, skipping insertion in model container [2023-11-29 03:54:33,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:32" (2/3) ... [2023-11-29 03:54:33,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23fbdd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:54:33, skipping insertion in model container [2023-11-29 03:54:33,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:54:33" (3/3) ... [2023-11-29 03:54:33,621 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2023-11-29 03:54:33,640 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:54:33,641 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:54:33,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:54:33,715 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=PETRI_NET, 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;@2ce155a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:54:33,715 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:54:33,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.6666666666666667) internal successors, (75), 46 states have internal predecessors, (75), 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) [2023-11-29 03:54:33,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-29 03:54:33,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:33,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:33,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:33,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:33,730 INFO L85 PathProgramCache]: Analyzing trace with hash 302558164, now seen corresponding path program 1 times [2023-11-29 03:54:33,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:33,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668908812] [2023-11-29 03:54:33,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:33,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:33,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:34,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:34,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:34,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668908812] [2023-11-29 03:54:34,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668908812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:54:34,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:54:34,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:54:34,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812691540] [2023-11-29 03:54:34,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:54:34,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:54:34,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:34,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:54:34,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:54:34,270 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.6666666666666667) internal successors, (75), 46 states have internal predecessors, (75), 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 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-29 03:54:34,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:34,314 INFO L93 Difference]: Finished difference Result 81 states and 131 transitions. [2023-11-29 03:54:34,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:54:34,317 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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 24 [2023-11-29 03:54:34,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:34,325 INFO L225 Difference]: With dead ends: 81 [2023-11-29 03:54:34,325 INFO L226 Difference]: Without dead ends: 47 [2023-11-29 03:54:34,328 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:54:34,331 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:34,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 199 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:54:34,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-11-29 03:54:34,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2023-11-29 03:54:34,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.5869565217391304) internal successors, (73), 46 states have internal predecessors, (73), 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) [2023-11-29 03:54:34,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 73 transitions. [2023-11-29 03:54:34,369 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 73 transitions. Word has length 24 [2023-11-29 03:54:34,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:34,370 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 73 transitions. [2023-11-29 03:54:34,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 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) [2023-11-29 03:54:34,370 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 73 transitions. [2023-11-29 03:54:34,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-29 03:54:34,371 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:34,371 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:34,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:54:34,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:34,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:34,373 INFO L85 PathProgramCache]: Analyzing trace with hash 791153142, now seen corresponding path program 1 times [2023-11-29 03:54:34,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:34,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057439670] [2023-11-29 03:54:34,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:34,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:34,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:34,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:34,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057439670] [2023-11-29 03:54:34,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057439670] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:54:34,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:54:34,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:54:34,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223847492] [2023-11-29 03:54:34,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:54:34,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:54:34,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:34,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:54:34,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:54:34,529 INFO L87 Difference]: Start difference. First operand 47 states and 73 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-11-29 03:54:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:34,559 INFO L93 Difference]: Finished difference Result 84 states and 129 transitions. [2023-11-29 03:54:34,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:54:34,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 25 [2023-11-29 03:54:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:34,561 INFO L225 Difference]: With dead ends: 84 [2023-11-29 03:54:34,561 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 03:54:34,562 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:54:34,563 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 1 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:34,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 197 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:54:34,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 03:54:34,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 49. [2023-11-29 03:54:34,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 48 states have (on average 1.5625) internal successors, (75), 48 states have internal predecessors, (75), 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) [2023-11-29 03:54:34,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 75 transitions. [2023-11-29 03:54:34,571 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 75 transitions. Word has length 25 [2023-11-29 03:54:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:34,572 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 75 transitions. [2023-11-29 03:54:34,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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) [2023-11-29 03:54:34,572 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 75 transitions. [2023-11-29 03:54:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:54:34,574 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:34,574 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:34,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:54:34,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:34,575 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:34,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1456276180, now seen corresponding path program 1 times [2023-11-29 03:54:34,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:34,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703901526] [2023-11-29 03:54:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:34,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:34,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:34,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:34,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:34,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703901526] [2023-11-29 03:54:34,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703901526] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:54:34,740 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:54:34,740 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 03:54:34,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105255164] [2023-11-29 03:54:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:54:34,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 03:54:34,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 03:54:34,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:54:34,742 INFO L87 Difference]: Start difference. First operand 49 states and 75 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-29 03:54:34,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:34,829 INFO L93 Difference]: Finished difference Result 121 states and 183 transitions. [2023-11-29 03:54:34,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:54:34,829 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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 26 [2023-11-29 03:54:34,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:34,831 INFO L225 Difference]: With dead ends: 121 [2023-11-29 03:54:34,831 INFO L226 Difference]: Without dead ends: 85 [2023-11-29 03:54:34,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:54:34,833 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 128 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:34,833 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 224 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:54:34,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-11-29 03:54:34,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 52. [2023-11-29 03:54:34,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2023-11-29 03:54:34,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2023-11-29 03:54:34,842 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 26 [2023-11-29 03:54:34,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:34,842 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2023-11-29 03:54:34,842 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-29 03:54:34,843 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2023-11-29 03:54:34,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-29 03:54:34,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:34,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:34,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:54:34,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:34,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:34,845 INFO L85 PathProgramCache]: Analyzing trace with hash 318731182, now seen corresponding path program 1 times [2023-11-29 03:54:34,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:34,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028121515] [2023-11-29 03:54:34,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:34,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:34,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:35,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:35,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:35,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028121515] [2023-11-29 03:54:35,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028121515] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:54:35,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:54:35,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:54:35,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645904339] [2023-11-29 03:54:35,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:54:35,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:54:35,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:35,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:54:35,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:54:35,394 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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) [2023-11-29 03:54:35,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:35,629 INFO L93 Difference]: Finished difference Result 174 states and 258 transitions. [2023-11-29 03:54:35,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:54:35,630 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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 26 [2023-11-29 03:54:35,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:35,631 INFO L225 Difference]: With dead ends: 174 [2023-11-29 03:54:35,632 INFO L226 Difference]: Without dead ends: 135 [2023-11-29 03:54:35,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:54:35,633 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 392 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 392 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:35,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [392 Valid, 341 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:54:35,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-11-29 03:54:35,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 62. [2023-11-29 03:54:35,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 61 states have (on average 1.5245901639344261) internal successors, (93), 61 states have internal predecessors, (93), 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) [2023-11-29 03:54:35,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 93 transitions. [2023-11-29 03:54:35,643 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 93 transitions. Word has length 26 [2023-11-29 03:54:35,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:35,643 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 93 transitions. [2023-11-29 03:54:35,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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) [2023-11-29 03:54:35,643 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 93 transitions. [2023-11-29 03:54:35,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:54:35,644 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:35,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:35,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:54:35,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:35,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:35,645 INFO L85 PathProgramCache]: Analyzing trace with hash -596769188, now seen corresponding path program 1 times [2023-11-29 03:54:35,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:35,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436640060] [2023-11-29 03:54:35,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:35,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:35,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:35,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436640060] [2023-11-29 03:54:35,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436640060] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:54:35,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:54:35,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:54:35,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759934743] [2023-11-29 03:54:35,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:54:35,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:54:35,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:35,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:54:35,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:54:35,863 INFO L87 Difference]: Start difference. First operand 62 states and 93 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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) [2023-11-29 03:54:35,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:35,999 INFO L93 Difference]: Finished difference Result 105 states and 157 transitions. [2023-11-29 03:54:36,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 03:54:36,000 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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 27 [2023-11-29 03:54:36,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:36,001 INFO L225 Difference]: With dead ends: 105 [2023-11-29 03:54:36,002 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 03:54:36,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:54:36,003 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 156 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:36,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 244 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:54:36,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 03:54:36,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2023-11-29 03:54:36,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5357142857142858) internal successors, (86), 56 states have internal predecessors, (86), 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) [2023-11-29 03:54:36,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 86 transitions. [2023-11-29 03:54:36,012 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 86 transitions. Word has length 27 [2023-11-29 03:54:36,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:36,013 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 86 transitions. [2023-11-29 03:54:36,013 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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) [2023-11-29 03:54:36,013 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 86 transitions. [2023-11-29 03:54:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:54:36,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:36,014 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:36,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 03:54:36,015 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:36,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:36,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1178238174, now seen corresponding path program 1 times [2023-11-29 03:54:36,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:36,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94558321] [2023-11-29 03:54:36,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:36,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:36,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:36,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:54:36,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94558321] [2023-11-29 03:54:36,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94558321] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:54:36,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:54:36,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:54:36,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894809948] [2023-11-29 03:54:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:54:36,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:54:36,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:54:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:54:36,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:54:36,342 INFO L87 Difference]: Start difference. First operand 57 states and 86 transitions. Second operand has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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) [2023-11-29 03:54:36,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:36,606 INFO L93 Difference]: Finished difference Result 96 states and 144 transitions. [2023-11-29 03:54:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:54:36,606 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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 27 [2023-11-29 03:54:36,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:36,607 INFO L225 Difference]: With dead ends: 96 [2023-11-29 03:54:36,607 INFO L226 Difference]: Without dead ends: 62 [2023-11-29 03:54:36,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:54:36,609 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 97 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:36,609 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 168 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 03:54:36,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-11-29 03:54:36,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 57. [2023-11-29 03:54:36,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5178571428571428) internal successors, (85), 56 states have internal predecessors, (85), 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) [2023-11-29 03:54:36,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 85 transitions. [2023-11-29 03:54:36,616 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 85 transitions. Word has length 27 [2023-11-29 03:54:36,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:36,616 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 85 transitions. [2023-11-29 03:54:36,617 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.857142857142857) internal successors, (27), 6 states have internal predecessors, (27), 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) [2023-11-29 03:54:36,617 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 85 transitions. [2023-11-29 03:54:36,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 03:54:36,618 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:36,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:36,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 03:54:36,618 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:36,618 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:36,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1178178592, now seen corresponding path program 1 times [2023-11-29 03:54:36,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:54:36,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698033398] [2023-11-29 03:54:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:36,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:54:36,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:54:36,642 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-29 03:54:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-29 03:54:36,687 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-29 03:54:36,687 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-29 03:54:36,689 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:54:36,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 03:54:36,694 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:54:36,697 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:54:36,721 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated [2023-11-29 03:54:36,722 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated [2023-11-29 03:54:36,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated [2023-11-29 03:54:36,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-29 03:54:36,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-29 03:54:36,723 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-29 03:54:36,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated [2023-11-29 03:54:36,724 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated [2023-11-29 03:54:36,725 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated [2023-11-29 03:54:36,726 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated [2023-11-29 03:54:36,727 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated [2023-11-29 03:54:36,728 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated [2023-11-29 03:54:36,730 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated [2023-11-29 03:54:36,731 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated [2023-11-29 03:54:36,732 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-29 03:54:36,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:54:36 BoogieIcfgContainer [2023-11-29 03:54:36,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:54:36,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:54:36,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:54:36,743 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:54:36,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:54:33" (3/4) ... [2023-11-29 03:54:36,745 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-29 03:54:36,746 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:54:36,747 INFO L158 Benchmark]: Toolchain (without parser) took 4199.32ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 129.7MB in the beginning and 107.5MB in the end (delta: 22.1MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2023-11-29 03:54:36,747 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:54:36,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.46ms. Allocated memory is still 159.4MB. Free memory was 129.3MB in the beginning and 115.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 03:54:36,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.04ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 109.8MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 03:54:36,748 INFO L158 Benchmark]: Boogie Preprocessor took 79.39ms. Allocated memory is still 159.4MB. Free memory was 109.8MB in the beginning and 106.0MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:54:36,749 INFO L158 Benchmark]: RCFGBuilder took 608.12ms. Allocated memory is still 159.4MB. Free memory was 105.6MB in the beginning and 129.4MB in the end (delta: -23.7MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2023-11-29 03:54:36,749 INFO L158 Benchmark]: TraceAbstraction took 3127.78ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 128.7MB in the beginning and 108.6MB in the end (delta: 20.1MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2023-11-29 03:54:36,749 INFO L158 Benchmark]: Witness Printer took 3.62ms. Allocated memory is still 203.4MB. Free memory was 108.6MB in the beginning and 107.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:54:36,751 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 60.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.46ms. Allocated memory is still 159.4MB. Free memory was 129.3MB in the beginning and 115.7MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.04ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 109.8MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.39ms. Allocated memory is still 159.4MB. Free memory was 109.8MB in the beginning and 106.0MB in the end (delta: 3.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.12ms. Allocated memory is still 159.4MB. Free memory was 105.6MB in the beginning and 129.4MB in the end (delta: -23.7MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3127.78ms. Allocated memory was 159.4MB in the beginning and 203.4MB in the end (delta: 44.0MB). Free memory was 128.7MB in the beginning and 108.6MB in the end (delta: 20.1MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. * Witness Printer took 3.62ms. Allocated memory is still 203.4MB. Free memory was 108.6MB in the beginning and 107.5MB 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet4 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet7 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet13 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet21 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet22 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet23 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 89. 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_11 mask_SORT_11 = (SORT_11)-1 >> (sizeof(SORT_11) * 8 - 2); [L30] const SORT_11 msb_SORT_11 = (SORT_11)1 << (2 - 1); [L32] const SORT_15 mask_SORT_15 = (SORT_15)-1 >> (sizeof(SORT_15) * 8 - 32); [L33] const SORT_15 msb_SORT_15 = (SORT_15)1 << (32 - 1); [L35] const SORT_1 var_5 = 0; [L36] const SORT_11 var_12 = 0; [L37] const SORT_15 var_17 = 2; [L38] const SORT_1 var_22 = 1; [L39] const SORT_11 var_39 = 1; [L41] SORT_1 input_2; [L42] SORT_1 input_3; [L43] SORT_1 input_4; [L44] SORT_11 input_26; [L45] SORT_11 input_40; [L46] SORT_1 input_45; [L48] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L48] SORT_1 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L49] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_6=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L49] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] EXPR __VERIFIER_nondet_uchar() & mask_SORT_11 VAL [mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L50] SORT_11 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_11; [L51] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L51] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L53] SORT_1 init_7_arg_1 = var_5; [L54] state_6 = init_7_arg_1 [L55] SORT_1 init_9_arg_1 = var_5; [L56] state_8 = init_9_arg_1 [L57] SORT_11 init_14_arg_1 = var_12; [L58] state_13 = init_14_arg_1 [L59] SORT_1 init_32_arg_1 = var_5; [L60] state_31 = init_32_arg_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L63] input_2 = __VERIFIER_nondet_uchar() [L64] EXPR input_2 & mask_SORT_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L64] input_2 = input_2 & mask_SORT_1 [L65] input_3 = __VERIFIER_nondet_uchar() [L66] EXPR input_3 & mask_SORT_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_12=0, var_17=2, var_22=1, var_39=1, var_5=0] [L66] input_3 = input_3 & mask_SORT_1 [L67] input_4 = __VERIFIER_nondet_uchar() [L68] input_26 = __VERIFIER_nondet_uchar() [L69] input_40 = __VERIFIER_nondet_uchar() [L70] input_45 = __VERIFIER_nondet_uchar() [L73] SORT_1 var_10_arg_0 = state_6; [L74] SORT_1 var_10_arg_1 = state_8; [L75] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L76] SORT_11 var_16_arg_0 = state_13; VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16_arg_0=0, var_17=2, var_22=1, var_39=1, var_5=0] [L77] EXPR var_16_arg_0 & mask_SORT_11 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16_arg_0=0, var_17=2, var_22=1, var_39=1, var_5=0] [L77] var_16_arg_0 = var_16_arg_0 & mask_SORT_11 [L78] SORT_15 var_16 = var_16_arg_0; [L79] SORT_15 var_18_arg_0 = var_16; [L80] SORT_15 var_18_arg_1 = var_17; [L81] SORT_1 var_18 = var_18_arg_0 != var_18_arg_1; [L82] SORT_1 var_19_arg_0 = var_10; [L83] SORT_1 var_19_arg_1 = var_18; VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16=0, var_16_arg_0=0, var_17=2, var_18=1, var_18_arg_0=0, var_18_arg_1=2, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_39=1, var_5=0] [L84] EXPR var_19_arg_0 & var_19_arg_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16=0, var_16_arg_0=0, var_17=2, var_18=1, var_18_arg_0=0, var_18_arg_1=2, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_39=1, var_5=0] [L84] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L85] SORT_1 var_23_arg_0 = var_19; [L86] SORT_1 var_23 = ~var_23_arg_0; [L87] SORT_1 var_24_arg_0 = var_22; [L88] SORT_1 var_24_arg_1 = var_23; VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16=0, var_16_arg_0=0, var_17=2, var_18=1, var_18_arg_0=0, var_18_arg_1=2, var_19=1, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_23=254, var_23_arg_0=1, var_24_arg_0=1, var_24_arg_1=254, var_39=1, var_5=0] [L89] EXPR var_24_arg_0 & var_24_arg_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16=0, var_16_arg_0=0, var_17=2, var_18=1, var_18_arg_0=0, var_18_arg_1=2, var_19=1, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_23=254, var_23_arg_0=1, var_24_arg_0=1, var_24_arg_1=254, var_39=1, var_5=0] [L89] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L90] EXPR var_24 & mask_SORT_1 VAL [init_14_arg_1=0, init_32_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, input_2=0, input_3=0, mask_SORT_11=3, mask_SORT_15=4294967295, mask_SORT_1=1, msb_SORT_11=2, msb_SORT_15=2147483648, msb_SORT_1=1, state_13=0, state_31=0, state_6=0, state_8=0, var_10=1, var_10_arg_0=0, var_10_arg_1=0, var_12=0, var_16=0, var_16_arg_0=0, var_17=2, var_18=1, var_18_arg_0=0, var_18_arg_1=2, var_19=1, var_19_arg_0=1, var_19_arg_1=1, var_22=1, var_23=254, var_23_arg_0=1, var_24=1, var_24_arg_0=1, var_24_arg_1=254, var_39=1, var_5=0] [L90] var_24 = var_24 & mask_SORT_1 [L91] SORT_1 bad_25_arg_0 = var_24; [L92] CALL __VERIFIER_assert(!(bad_25_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 775 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 775 mSDsluCounter, 1373 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 967 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 377 IncrementalHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 406 mSDtfsCounter, 377 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=62occurred in iteration=4, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 121 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 182 NumberOfCodeBlocks, 182 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 [2023-11-29 03:54:36,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:54:38,733 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:54:38,801 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2023-11-29 03:54:38,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:54:38,808 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:54:38,835 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:54:38,836 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:54:38,836 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:54:38,837 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:54:38,837 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:54:38,838 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:54:38,838 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:54:38,839 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:54:38,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:54:38,840 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:54:38,841 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:54:38,841 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:54:38,842 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:54:38,842 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:54:38,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:54:38,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:54:38,844 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-29 03:54:38,844 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-29 03:54:38,844 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-29 03:54:38,845 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:54:38,845 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:54:38,846 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:54:38,846 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:54:38,847 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:54:38,847 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:54:38,847 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:54:38,848 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:54:38,848 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:54:38,849 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:54:38,849 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-29 03:54:38,849 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-29 03:54:38,850 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:54:38,850 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:54:38,850 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:54:38,851 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:54:38,851 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:54:38,851 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-29 03:54:38,851 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec179c2b0ae29cffe9fd88f2044fb26f554ea0dd1abcec6f41fd07a61f74c869 [2023-11-29 03:54:39,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:54:39,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:54:39,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:54:39,190 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:54:39,191 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:54:39,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2023-11-29 03:54:41,970 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:54:42,151 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:54:42,151 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c [2023-11-29 03:54:42,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data/b151634b5/373e719bfe2d49fd9e80173d2b343a9e/FLAG0e6c19257 [2023-11-29 03:54:42,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/data/b151634b5/373e719bfe2d49fd9e80173d2b343a9e [2023-11-29 03:54:42,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:54:42,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:54:42,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:54:42,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:54:42,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:54:42,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,185 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c87126c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42, skipping insertion in model container [2023-11-29 03:54:42,185 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,208 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:54:42,333 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_537ec8e5-bc54-4faa-bce7-4a9805d203d8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2023-11-29 03:54:42,380 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:54:42,391 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:54:42,402 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_537ec8e5-bc54-4faa-bce7-4a9805d203d8/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b06.c[1245,1258] [2023-11-29 03:54:42,436 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:54:42,453 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:54:42,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42 WrapperNode [2023-11-29 03:54:42,453 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:54:42,454 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:54:42,455 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:54:42,455 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:54:42,462 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,473 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,502 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 157 [2023-11-29 03:54:42,502 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:54:42,503 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:54:42,503 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:54:42,504 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:54:42,515 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,521 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,535 INFO L175 MemorySlicer]: Split 10 memory accesses to 2 slices as follows [2, 8]. 80 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8]. The 0 writes are split as follows [0, 0]. [2023-11-29 03:54:42,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,544 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,548 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,550 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,551 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,555 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:54:42,556 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:54:42,556 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:54:42,557 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:54:42,557 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (1/1) ... [2023-11-29 03:54:42,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:54:42,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:54:42,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:54:42,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:54:42,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:54:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-29 03:54:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-29 03:54:42,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:54:42,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:54:42,734 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:54:42,736 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:54:42,923 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:54:42,962 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:54:42,962 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:54:42,963 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:54:42 BoogieIcfgContainer [2023-11-29 03:54:42,963 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:54:42,966 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:54:42,966 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:54:42,969 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:54:42,970 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:54:42" (1/3) ... [2023-11-29 03:54:42,970 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8ae4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:54:42, skipping insertion in model container [2023-11-29 03:54:42,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:54:42" (2/3) ... [2023-11-29 03:54:42,971 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8ae4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:54:42, skipping insertion in model container [2023-11-29 03:54:42,971 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:54:42" (3/3) ... [2023-11-29 03:54:42,973 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b06.c [2023-11-29 03:54:42,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:54:42,992 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:54:43,039 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:54:43,046 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=PETRI_NET, 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;@f3e153, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:54:43,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:54:43,050 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) [2023-11-29 03:54:43,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-29 03:54:43,057 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:43,058 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-29 03:54:43,058 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:43,064 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:43,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-29 03:54:43,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:54:43,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [479253955] [2023-11-29 03:54:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:43,082 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 [2023-11-29 03:54:43,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:54:43,085 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 03:54:43,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:43,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:43,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-29 03:54:43,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:54:43,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:43,538 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:54:43,539 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:54:43,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [479253955] [2023-11-29 03:54:43,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [479253955] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:54:43,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:54:43,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 03:54:43,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870325269] [2023-11-29 03:54:43,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:54:43,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 03:54:43,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:54:43,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 03:54:43,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 03:54:43,576 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) [2023-11-29 03:54:43,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:43,643 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-29 03:54:43,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:54:43,646 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 [2023-11-29 03:54:43,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:43,653 INFO L225 Difference]: With dead ends: 16 [2023-11-29 03:54:43,653 INFO L226 Difference]: Without dead ends: 9 [2023-11-29 03:54:43,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 03:54:43,660 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:43,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:54:43,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-29 03:54:43,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-29 03:54:43,689 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) [2023-11-29 03:54:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-29 03:54:43,691 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-29 03:54:43,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:43,692 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-29 03:54:43,692 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) [2023-11-29 03:54:43,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-29 03:54:43,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-29 03:54:43,693 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:43,693 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-29 03:54:43,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:43,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:43,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:43,894 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:43,895 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-29 03:54:43,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:54:43,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465849322] [2023-11-29 03:54:43,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:54:43,896 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 [2023-11-29 03:54:43,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:54:43,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 03:54:43,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:44,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:54:44,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-29 03:54:44,023 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:54:44,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:44,719 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:54:46,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:46,524 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:54:46,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465849322] [2023-11-29 03:54:46,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1465849322] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:54:46,525 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:54:46,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 8 [2023-11-29 03:54:46,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319608534] [2023-11-29 03:54:46,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:54:46,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 03:54:46,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:54:46,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 03:54:46,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2023-11-29 03:54:46,528 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 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) [2023-11-29 03:54:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:46,831 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-29 03:54:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 03:54:46,832 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 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) Word has length 7 [2023-11-29 03:54:46,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:46,832 INFO L225 Difference]: With dead ends: 14 [2023-11-29 03:54:46,832 INFO L226 Difference]: Without dead ends: 12 [2023-11-29 03:54:46,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:54:46,835 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 6 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:46,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 13 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:54:46,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-29 03:54:46,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2023-11-29 03:54:46,839 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) [2023-11-29 03:54:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-29 03:54:46,840 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 7 [2023-11-29 03:54:46,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:46,840 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2023-11-29 03:54:46,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 8 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) [2023-11-29 03:54:46,841 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-29 03:54:46,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-29 03:54:46,841 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:46,841 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2023-11-29 03:54:46,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:47,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:47,042 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:47,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:47,043 INFO L85 PathProgramCache]: Analyzing trace with hash -2112524529, now seen corresponding path program 2 times [2023-11-29 03:54:47,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:54:47,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736883730] [2023-11-29 03:54:47,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:54:47,044 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 [2023-11-29 03:54:47,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:54:47,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 03:54:47,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 (4)] Waiting until timeout for monitored process [2023-11-29 03:54:47,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 03:54:47,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:54:47,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-29 03:54:47,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:54:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:47,674 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:54:50,523 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 03:54:50,523 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:54:50,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1736883730] [2023-11-29 03:54:50,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1736883730] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:54:50,524 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:54:50,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 10 [2023-11-29 03:54:50,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998798448] [2023-11-29 03:54:50,525 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:54:50,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-29 03:54:50,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:54:50,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-29 03:54:50,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:54:50,527 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 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) [2023-11-29 03:54:50,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:50,777 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-11-29 03:54:50,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:54:50,777 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 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 10 [2023-11-29 03:54:50,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:50,778 INFO L225 Difference]: With dead ends: 17 [2023-11-29 03:54:50,778 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 03:54:50,778 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2023-11-29 03:54:50,780 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 18 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:50,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 12 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 03:54:50,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 03:54:50,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-11-29 03:54:50,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 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) [2023-11-29 03:54:50,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-11-29 03:54:50,785 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 10 [2023-11-29 03:54:50,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:50,785 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-11-29 03:54:50,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 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) [2023-11-29 03:54:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-11-29 03:54:50,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-29 03:54:50,786 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:54:50,786 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1] [2023-11-29 03:54:50,789 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 (4)] Ended with exit code 0 [2023-11-29 03:54:50,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:50,987 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:54:50,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:54:50,987 INFO L85 PathProgramCache]: Analyzing trace with hash -57678563, now seen corresponding path program 3 times [2023-11-29 03:54:50,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-29 03:54:50,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402945508] [2023-11-29 03:54:50,988 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 03:54:50,988 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 [2023-11-29 03:54:50,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-29 03:54:50,989 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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) [2023-11-29 03:54:50,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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)] Waiting until timeout for monitored process [2023-11-29 03:54:51,056 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 03:54:51,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:54:51,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-29 03:54:51,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:54:51,553 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 03:54:51,553 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:54:52,104 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-29 03:54:52,104 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-29 03:54:52,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402945508] [2023-11-29 03:54:52,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402945508] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:54:52,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 03:54:52,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2023-11-29 03:54:52,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60515870] [2023-11-29 03:54:52,105 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 03:54:52,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:54:52,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-29 03:54:52,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:54:52,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:54:52,107 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-11-29 03:54:52,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:54:52,184 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2023-11-29 03:54:52,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 03:54:52,185 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 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 13 [2023-11-29 03:54:52,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:54:52,186 INFO L225 Difference]: With dead ends: 14 [2023-11-29 03:54:52,186 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 03:54:52,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:54:52,187 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 03:54:52,187 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 03:54:52,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 03:54:52,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 03:54:52,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-11-29 03:54:52,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 03:54:52,188 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2023-11-29 03:54:52,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:54:52,188 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 03:54:52,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 7 states have internal predecessors, (15), 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) [2023-11-29 03:54:52,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 03:54:52,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 03:54:52,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 03:54:52,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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)] Ended with exit code 0 [2023-11-29 03:54:52,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/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 [2023-11-29 03:54:52,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 03:54:52,467 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 03:54:52,467 INFO L899 garLoopResultBuilder]: For program point L21(line 21) no Hoare annotation was computed. [2023-11-29 03:54:52,467 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2023-11-29 03:54:52,467 INFO L899 garLoopResultBuilder]: For program point L21-3(line 21) no Hoare annotation was computed. [2023-11-29 03:54:52,467 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 03:54:52,468 INFO L895 garLoopResultBuilder]: At program point L61-2(lines 61 146) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~var_22~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~var_5~0#1| (_ bv0 8)) (= (_ bv1 8) |ULTIMATE.start_main_~var_39~0#1|) (or (= (_ bv1 8) |ULTIMATE.start_main_~state_13~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_13~0#1|)) (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_11~0#1|) (= (_ bv2 32) |ULTIMATE.start_main_~var_17~0#1|) (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 8)) (or (and (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8)) (= |ULTIMATE.start_main_~state_6~0#1| (_ bv0 8))) (and (= (_ bv1 8) |ULTIMATE.start_main_~state_6~0#1|) (= (_ bv1 8) |ULTIMATE.start_main_~state_8~0#1|)))) [2023-11-29 03:54:52,468 INFO L899 garLoopResultBuilder]: For program point L61-3(lines 61 146) no Hoare annotation was computed. [2023-11-29 03:54:52,468 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 21) no Hoare annotation was computed. [2023-11-29 03:54:52,471 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2023-11-29 03:54:52,474 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 03:54:52,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 03:54:52 BoogieIcfgContainer [2023-11-29 03:54:52,484 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 03:54:52,485 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 03:54:52,485 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 03:54:52,485 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 03:54:52,485 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:54:42" (3/4) ... [2023-11-29 03:54:52,487 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 03:54:52,493 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-29 03:54:52,493 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 03:54:52,494 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-29 03:54:52,494 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:54:52,494 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 03:54:52,592 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 03:54:52,592 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 03:54:52,592 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 03:54:52,593 INFO L158 Benchmark]: Toolchain (without parser) took 10415.71ms. Allocated memory was 73.4MB in the beginning and 257.9MB in the end (delta: 184.5MB). Free memory was 45.1MB in the beginning and 232.3MB in the end (delta: -187.2MB). Peak memory consumption was 147.2MB. Max. memory is 16.1GB. [2023-11-29 03:54:52,594 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 03:54:52,594 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.69ms. Allocated memory was 73.4MB in the beginning and 115.3MB in the end (delta: 41.9MB). Free memory was 44.9MB in the beginning and 93.1MB in the end (delta: -48.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-29 03:54:52,594 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.29ms. Allocated memory is still 115.3MB. Free memory was 93.1MB in the beginning and 91.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 03:54:52,595 INFO L158 Benchmark]: Boogie Preprocessor took 52.10ms. Allocated memory is still 115.3MB. Free memory was 91.0MB in the beginning and 88.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 03:54:52,595 INFO L158 Benchmark]: RCFGBuilder took 406.67ms. Allocated memory is still 115.3MB. Free memory was 88.0MB in the beginning and 70.0MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 03:54:52,596 INFO L158 Benchmark]: TraceAbstraction took 9518.02ms. Allocated memory was 115.3MB in the beginning and 257.9MB in the end (delta: 142.6MB). Free memory was 69.1MB in the beginning and 87.5MB in the end (delta: -18.3MB). Peak memory consumption was 123.1MB. Max. memory is 16.1GB. [2023-11-29 03:54:52,596 INFO L158 Benchmark]: Witness Printer took 107.94ms. Allocated memory is still 257.9MB. Free memory was 87.5MB in the beginning and 232.3MB in the end (delta: -144.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-29 03:54:52,598 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 73.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.69ms. Allocated memory was 73.4MB in the beginning and 115.3MB in the end (delta: 41.9MB). Free memory was 44.9MB in the beginning and 93.1MB in the end (delta: -48.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.29ms. Allocated memory is still 115.3MB. Free memory was 93.1MB in the beginning and 91.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.10ms. Allocated memory is still 115.3MB. Free memory was 91.0MB in the beginning and 88.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 406.67ms. Allocated memory is still 115.3MB. Free memory was 88.0MB in the beginning and 70.0MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 9518.02ms. Allocated memory was 115.3MB in the beginning and 257.9MB in the end (delta: 142.6MB). Free memory was 69.1MB in the beginning and 87.5MB in the end (delta: -18.3MB). Peak memory consumption was 123.1MB. Max. memory is 16.1GB. * Witness Printer took 107.94ms. Allocated memory is still 257.9MB. Free memory was 87.5MB in the beginning and 232.3MB in the end (delta: -144.9MB). Peak memory consumption was 6.3MB. 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 - PositiveResult [Line: 21]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.4s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 6 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 4 NumberOfFragments, 44 HoareAnnotationTreeSize, 1 FomulaSimplifications, 83 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 102 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 34 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 25 QuantifiedInterpolants, 7125 SizeOfPredicates, 203 NumberOfNonLiveVariables, 528 ConjunctsInSsa, 199 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 18/48 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: (((((((((1 == var_22) && (1 == mask_SORT_1)) && (var_5 == 0)) && (1 == var_39)) && ((1 == state_13) || (0 == state_13))) && (3 == mask_SORT_11)) && (2 == var_17)) && (var_12 == 0)) && (((state_8 == 0) && (state_6 == 0)) || ((1 == state_6) && (1 == state_8)))) RESULT: Ultimate proved your program to be correct! [2023-11-29 03:54:52,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537ec8e5-bc54-4faa-bce7-4a9805d203d8/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE