./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:31,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:31,304 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:18:31,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:31,311 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:31,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:31,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:31,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:31,338 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:31,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:31,339 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:31,340 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:31,341 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:31,341 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:18:31,342 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:31,342 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:31,343 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:18:31,344 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:18:31,344 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:31,345 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:18:31,345 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:18:31,346 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:18:31,347 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:31,347 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:31,348 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:18:31,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:31,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:31,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:31,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:31,350 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:31,351 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:31,351 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:31,352 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:31,352 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:31,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:31,353 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:31,353 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:31,354 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:31,354 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:18:31,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:18:31,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:31,355 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:31,356 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:31,356 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:31,357 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b [2023-11-23 21:18:31,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:31,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:31,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:31,636 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:31,637 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:31,638 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-23 21:18:34,766 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:35,063 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:35,067 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-23 21:18:35,080 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data/41cdc7c7a/5287dd0ace874d14a9f321fef4f5d024/FLAG6cb738073 [2023-11-23 21:18:35,092 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data/41cdc7c7a/5287dd0ace874d14a9f321fef4f5d024 [2023-11-23 21:18:35,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:35,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:35,097 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:35,097 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:35,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:35,107 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,108 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6cb967 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35, skipping insertion in model container [2023-11-23 21:18:35,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,144 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:35,323 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_7806efa7-0d35-45c9-8d09-380768329f74/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-23 21:18:35,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:35,528 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:35,548 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_7806efa7-0d35-45c9-8d09-380768329f74/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-23 21:18:35,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:35,636 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:35,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35 WrapperNode [2023-11-23 21:18:35,637 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:35,639 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:35,639 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:35,639 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:35,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,784 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 563 [2023-11-23 21:18:35,784 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:35,785 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:35,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:35,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:35,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,837 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,858 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:35,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:35,875 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:35,875 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:35,876 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (1/1) ... [2023-11-23 21:18:35,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:35,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:35,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:35,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:18:35,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:36,164 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:36,166 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:36,983 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:37,974 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:37,975 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:18:37,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:37 BoogieIcfgContainer [2023-11-23 21:18:37,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:37,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:37,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:37,989 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:37,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:35" (1/3) ... [2023-11-23 21:18:37,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6093ff80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:37, skipping insertion in model container [2023-11-23 21:18:37,991 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:35" (2/3) ... [2023-11-23 21:18:37,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6093ff80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:37, skipping insertion in model container [2023-11-23 21:18:37,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:37" (3/3) ... [2023-11-23 21:18:37,995 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2023-11-23 21:18:38,015 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:38,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:38,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:38,084 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@25eb24b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:38,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:38,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:38,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:18:38,101 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:38,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:18:38,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:38,112 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:38,113 INFO L85 PathProgramCache]: Analyzing trace with hash 15899968, now seen corresponding path program 1 times [2023-11-23 21:18:38,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:38,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34370823] [2023-11-23 21:18:38,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:38,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:38,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:40,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:18:40,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:18:40,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34370823] [2023-11-23 21:18:40,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34370823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:40,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:40,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:40,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532989416] [2023-11-23 21:18:40,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:40,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:18:40,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:18:40,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:18:40,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:18:40,126 INFO L87 Difference]: Start difference. First operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:40,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:40,728 INFO L93 Difference]: Finished difference Result 15 states and 20 transitions. [2023-11-23 21:18:40,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 21:18:40,731 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 21:18:40,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:40,737 INFO L225 Difference]: With dead ends: 15 [2023-11-23 21:18:40,737 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 21:18:40,739 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 [2023-11-23 21:18:40,742 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 3 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:40,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 21:18:40,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 21:18:40,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-23 21:18:40,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-23 21:18:40,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-23 21:18:40,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:40,773 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-23 21:18:40,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:40,774 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-23 21:18:40,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:18:40,774 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:40,775 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 21:18:40,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:18:40,775 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:40,776 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:40,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1246337826, now seen corresponding path program 1 times [2023-11-23 21:18:40,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:18:40,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732448520] [2023-11-23 21:18:40,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:40,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:18:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:18:43,341 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:18:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:18:45,265 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:18:45,266 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:18:45,268 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:18:45,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 21:18:45,274 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 21:18:45,278 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:18:45,348 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 21:18:45,350 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2023-11-23 21:18:45,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:18:45 BoogieIcfgContainer [2023-11-23 21:18:45,378 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:18:45,379 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:18:45,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:18:45,380 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:18:45,381 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:37" (3/4) ... [2023-11-23 21:18:45,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:18:45,385 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:18:45,386 INFO L158 Benchmark]: Toolchain (without parser) took 10290.17ms. Allocated memory was 178.3MB in the beginning and 335.5MB in the end (delta: 157.3MB). Free memory was 147.2MB in the beginning and 269.8MB in the end (delta: -122.6MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2023-11-23 21:18:45,388 INFO L158 Benchmark]: CDTParser took 1.39ms. Allocated memory is still 130.0MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:18:45,393 INFO L158 Benchmark]: CACSL2BoogieTranslator took 540.86ms. Allocated memory is still 178.3MB. Free memory was 146.9MB in the beginning and 128.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-23 21:18:45,394 INFO L158 Benchmark]: Boogie Procedure Inliner took 146.07ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 116.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:18:45,395 INFO L158 Benchmark]: Boogie Preprocessor took 88.91ms. Allocated memory is still 178.3MB. Free memory was 116.4MB in the beginning and 111.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:18:45,396 INFO L158 Benchmark]: RCFGBuilder took 2102.78ms. Allocated memory was 178.3MB in the beginning and 241.2MB in the end (delta: 62.9MB). Free memory was 111.6MB in the beginning and 180.1MB in the end (delta: -68.5MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2023-11-23 21:18:45,396 INFO L158 Benchmark]: TraceAbstraction took 7395.78ms. Allocated memory was 241.2MB in the beginning and 335.5MB in the end (delta: 94.4MB). Free memory was 179.1MB in the beginning and 269.8MB in the end (delta: -90.7MB). Peak memory consumption was 178.8MB. Max. memory is 16.1GB. [2023-11-23 21:18:45,397 INFO L158 Benchmark]: Witness Printer took 6.06ms. Allocated memory is still 335.5MB. Free memory is still 269.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:18:45,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39ms. Allocated memory is still 130.0MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 540.86ms. Allocated memory is still 178.3MB. Free memory was 146.9MB in the beginning and 128.1MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 146.07ms. Allocated memory is still 178.3MB. Free memory was 128.1MB in the beginning and 116.4MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.91ms. Allocated memory is still 178.3MB. Free memory was 116.4MB in the beginning and 111.6MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2102.78ms. Allocated memory was 178.3MB in the beginning and 241.2MB in the end (delta: 62.9MB). Free memory was 111.6MB in the beginning and 180.1MB in the end (delta: -68.5MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * TraceAbstraction took 7395.78ms. Allocated memory was 241.2MB in the beginning and 335.5MB in the end (delta: 94.4MB). Free memory was 179.1MB in the beginning and 269.8MB in the end (delta: -90.7MB). Peak memory consumption was 178.8MB. Max. memory is 16.1GB. * Witness Printer took 6.06ms. Allocated memory is still 335.5MB. Free memory is still 269.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 88, overapproximation of bitwiseAnd at line 73. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L29] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L30] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L32] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L33] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L35] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 2); [L36] const SORT_47 msb_SORT_47 = (SORT_47)1 << (2 - 1); [L38] const SORT_1 var_4 = 0; [L39] const SORT_7 var_9 = 1; [L40] const SORT_12 var_13 = 0; [L41] const SORT_1 var_21 = 1; [L42] const SORT_12 var_28 = 2; [L43] const SORT_12 var_31 = 1; [L44] const SORT_12 var_35 = 4; [L45] const SORT_12 var_38 = 6; [L46] const SORT_12 var_41 = 5; [L47] const SORT_12 var_45 = 3; [L48] const SORT_7 var_57 = 0; [L50] SORT_1 input_2; [L51] SORT_1 input_3; [L52] SORT_12 input_55; [L53] SORT_12 input_62; [L54] SORT_12 input_75; [L56] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L56] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] EXPR __VERIFIER_nondet_uchar() & mask_SORT_12 [L57] SORT_12 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_12; [L59] SORT_1 init_6_arg_1 = var_4; [L60] state_5 = init_6_arg_1 [L61] SORT_12 init_15_arg_1 = var_13; [L62] state_14 = init_15_arg_1 VAL [init_15_arg_1=0, init_6_arg_1=0, mask_SORT_12=7, mask_SORT_1=1, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_12=4, msb_SORT_1=1, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_13=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_41=5, var_45=3, var_4=0, var_57=0, var_9=1] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_55 = __VERIFIER_nondet_uchar() [L68] input_62 = __VERIFIER_nondet_uchar() [L69] input_75 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_8_arg_0 = state_5; [L73] EXPR var_8_arg_0 & mask_SORT_1 [L73] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L74] SORT_7 var_8 = var_8_arg_0; [L75] SORT_7 var_10_arg_0 = var_8; [L76] SORT_7 var_10_arg_1 = var_9; [L77] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L78] SORT_1 var_11_arg_0 = var_10; [L79] SORT_1 var_11 = ~var_11_arg_0; [L80] SORT_12 var_16_arg_0 = state_14; [L81] EXPR var_16_arg_0 & mask_SORT_12 [L81] var_16_arg_0 = var_16_arg_0 & mask_SORT_12 [L82] SORT_7 var_16 = var_16_arg_0; [L83] SORT_7 var_17_arg_0 = var_16; [L84] SORT_7 var_17_arg_1 = var_9; [L85] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L86] SORT_1 var_18_arg_0 = var_11; [L87] SORT_1 var_18_arg_1 = var_17; [L88] EXPR var_18_arg_0 | var_18_arg_1 [L88] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L89] SORT_1 var_22_arg_0 = var_18; [L90] SORT_1 var_22 = ~var_22_arg_0; [L91] SORT_1 var_23_arg_0 = var_21; [L92] SORT_1 var_23_arg_1 = var_22; [L93] EXPR var_23_arg_0 & var_23_arg_1 [L93] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L94] EXPR var_23 & mask_SORT_1 [L94] var_23 = var_23 & mask_SORT_1 [L95] SORT_1 bad_24_arg_0 = var_23; [L96] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L96] RET __VERIFIER_assert(!(bad_24_arg_0)) [L98] SORT_12 var_42_arg_0 = state_14; [L99] SORT_12 var_42_arg_1 = var_41; [L100] SORT_1 var_42 = var_42_arg_0 == var_42_arg_1; [L101] SORT_12 var_39_arg_0 = state_14; [L102] SORT_12 var_39_arg_1 = var_38; [L103] SORT_1 var_39 = var_39_arg_0 == var_39_arg_1; [L104] SORT_1 var_43_arg_0 = var_42; [L105] SORT_1 var_43_arg_1 = var_39; [L106] EXPR var_43_arg_0 | var_43_arg_1 [L106] SORT_1 var_43 = var_43_arg_0 | var_43_arg_1; [L107] EXPR var_43 & mask_SORT_1 [L107] var_43 = var_43 & mask_SORT_1 [L108] SORT_12 var_36_arg_0 = state_14; [L109] SORT_12 var_36_arg_1 = var_35; [L110] SORT_1 var_36 = var_36_arg_0 == var_36_arg_1; [L111] SORT_12 var_46_arg_0 = state_14; [L112] SORT_12 var_46_arg_1 = var_45; [L113] SORT_1 var_46 = var_46_arg_0 == var_46_arg_1; [L114] SORT_1 var_48_arg_0 = var_36; [L115] SORT_1 var_48_arg_1 = var_46; [L116] EXPR ((SORT_47)var_48_arg_0 << 1) | var_48_arg_1 [L116] SORT_47 var_48 = ((SORT_47)var_48_arg_0 << 1) | var_48_arg_1; [L117] EXPR var_48 & mask_SORT_47 [L117] var_48 = var_48 & mask_SORT_47 [L118] SORT_1 var_49_arg_0 = var_43; [L119] SORT_47 var_49_arg_1 = var_48; [L120] EXPR ((SORT_12)var_49_arg_0 << 2) | var_49_arg_1 [L120] SORT_12 var_49 = ((SORT_12)var_49_arg_0 << 2) | var_49_arg_1; [L121] EXPR var_49 & mask_SORT_12 [L121] var_49 = var_49 & mask_SORT_12 [L122] SORT_12 var_50_arg_0 = var_49; [L123] SORT_1 var_50 = var_50_arg_0 != 0; [L124] SORT_1 var_40_arg_0 = var_39; [L125] SORT_1 var_40_arg_1 = var_4; [L126] SORT_1 var_40_arg_2 = var_4; [L127] SORT_1 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L128] SORT_1 var_37_arg_0 = var_36; [L129] SORT_1 var_37_arg_1 = var_21; [L130] SORT_1 var_37_arg_2 = var_4; [L131] SORT_1 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L132] SORT_1 var_44_arg_0 = var_43; [L133] SORT_1 var_44_arg_1 = var_40; [L134] SORT_1 var_44_arg_2 = var_37; [L135] SORT_1 var_44 = var_44_arg_0 ? var_44_arg_1 : var_44_arg_2; [L136] SORT_12 var_32_arg_0 = state_14; [L137] SORT_12 var_32_arg_1 = var_31; [L138] SORT_1 var_32 = var_32_arg_0 == var_32_arg_1; [L139] SORT_12 var_29_arg_0 = state_14; [L140] SORT_12 var_29_arg_1 = var_28; [L141] SORT_1 var_29 = var_29_arg_0 == var_29_arg_1; [L142] SORT_1 var_33_arg_0 = var_32; [L143] SORT_1 var_33_arg_1 = var_29; [L144] EXPR var_33_arg_0 | var_33_arg_1 [L144] SORT_1 var_33 = var_33_arg_0 | var_33_arg_1; [L145] EXPR var_33 & mask_SORT_1 [L145] var_33 = var_33 & mask_SORT_1 [L146] SORT_1 var_30_arg_0 = var_29; [L147] SORT_1 var_30_arg_1 = var_4; [L148] SORT_1 var_30_arg_2 = var_4; [L149] SORT_1 var_30 = var_30_arg_0 ? var_30_arg_1 : var_30_arg_2; [L150] SORT_12 var_26_arg_0 = state_14; [L151] SORT_12 var_26_arg_1 = var_13; [L152] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L153] SORT_1 var_27_arg_0 = var_26; [L154] SORT_1 var_27_arg_1 = var_4; [L155] SORT_1 var_27_arg_2 = state_5; [L156] SORT_1 var_27 = var_27_arg_0 ? var_27_arg_1 : var_27_arg_2; [L157] SORT_1 var_34_arg_0 = var_33; [L158] SORT_1 var_34_arg_1 = var_30; [L159] SORT_1 var_34_arg_2 = var_27; [L160] SORT_1 var_34 = var_34_arg_0 ? var_34_arg_1 : var_34_arg_2; [L161] SORT_1 var_51_arg_0 = var_50; [L162] SORT_1 var_51_arg_1 = var_44; [L163] SORT_1 var_51_arg_2 = var_34; [L164] SORT_1 var_51 = var_51_arg_0 ? var_51_arg_1 : var_51_arg_2; [L165] SORT_1 next_52_arg_1 = var_51; [L166] SORT_12 var_83_arg_0 = state_14; [L167] SORT_12 var_83_arg_1 = var_41; [L168] SORT_1 var_83 = var_83_arg_0 == var_83_arg_1; [L169] SORT_12 var_81_arg_0 = state_14; [L170] SORT_12 var_81_arg_1 = var_38; [L171] SORT_1 var_81 = var_81_arg_0 == var_81_arg_1; [L172] SORT_1 var_84_arg_0 = var_83; [L173] SORT_1 var_84_arg_1 = var_81; [L174] EXPR var_84_arg_0 | var_84_arg_1 [L174] SORT_1 var_84 = var_84_arg_0 | var_84_arg_1; [L175] EXPR var_84 & mask_SORT_1 [L175] var_84 = var_84 & mask_SORT_1 [L176] SORT_12 var_73_arg_0 = state_14; [L177] SORT_12 var_73_arg_1 = var_35; [L178] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L179] SORT_12 var_86_arg_0 = state_14; [L180] SORT_12 var_86_arg_1 = var_45; [L181] SORT_1 var_86 = var_86_arg_0 == var_86_arg_1; [L182] SORT_1 var_87_arg_0 = var_73; [L183] SORT_1 var_87_arg_1 = var_86; [L184] EXPR ((SORT_47)var_87_arg_0 << 1) | var_87_arg_1 [L184] SORT_47 var_87 = ((SORT_47)var_87_arg_0 << 1) | var_87_arg_1; [L185] EXPR var_87 & mask_SORT_47 [L185] var_87 = var_87 & mask_SORT_47 [L186] SORT_1 var_88_arg_0 = var_84; [L187] SORT_47 var_88_arg_1 = var_87; [L188] EXPR ((SORT_12)var_88_arg_0 << 2) | var_88_arg_1 [L188] SORT_12 var_88 = ((SORT_12)var_88_arg_0 << 2) | var_88_arg_1; [L189] EXPR var_88 & mask_SORT_12 [L189] var_88 = var_88 & mask_SORT_12 [L190] SORT_12 var_89_arg_0 = var_88; [L191] SORT_1 var_89 = var_89_arg_0 != 0; [L192] SORT_12 var_79_arg_0 = state_14; [L193] SORT_12 var_79_arg_1 = var_38; [L194] SORT_1 var_79 = var_79_arg_0 == var_79_arg_1; [L195] SORT_1 var_76_arg_0 = input_2; [L196] EXPR var_76_arg_0 & mask_SORT_1 [L196] var_76_arg_0 = var_76_arg_0 & mask_SORT_1 [L197] SORT_7 var_76 = var_76_arg_0; [L198] SORT_7 var_77_arg_0 = var_76; [L199] SORT_7 var_77_arg_1 = var_57; [L200] SORT_1 var_77 = var_77_arg_0 == var_77_arg_1; [L201] SORT_1 var_78_arg_0 = var_77; [L202] SORT_12 var_78_arg_1 = var_35; [L203] SORT_12 var_78_arg_2 = var_13; [L204] SORT_12 var_78 = var_78_arg_0 ? var_78_arg_1 : var_78_arg_2; [L205] SORT_1 var_80_arg_0 = var_79; [L206] SORT_12 var_80_arg_1 = var_78; [L207] SORT_12 var_80_arg_2 = input_75; [L208] SORT_12 var_80 = var_80_arg_0 ? var_80_arg_1 : var_80_arg_2; [L209] SORT_1 var_82_arg_0 = var_81; [L210] SORT_12 var_82_arg_1 = var_80; [L211] SORT_12 var_82_arg_2 = var_38; [L212] SORT_12 var_82 = var_82_arg_0 ? var_82_arg_1 : var_82_arg_2; [L213] SORT_1 var_74_arg_0 = var_73; [L214] SORT_12 var_74_arg_1 = var_31; [L215] SORT_12 var_74_arg_2 = var_35; [L216] SORT_12 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L217] SORT_1 var_85_arg_0 = var_84; [L218] SORT_12 var_85_arg_1 = var_82; [L219] SORT_12 var_85_arg_2 = var_74; [L220] SORT_12 var_85 = var_85_arg_0 ? var_85_arg_1 : var_85_arg_2; [L221] SORT_12 var_70_arg_0 = state_14; [L222] SORT_12 var_70_arg_1 = var_31; [L223] SORT_1 var_70 = var_70_arg_0 == var_70_arg_1; [L224] SORT_12 var_68_arg_0 = state_14; [L225] SORT_12 var_68_arg_1 = var_28; [L226] SORT_1 var_68 = var_68_arg_0 == var_68_arg_1; [L227] SORT_1 var_71_arg_0 = var_70; [L228] SORT_1 var_71_arg_1 = var_68; [L229] EXPR var_71_arg_0 | var_71_arg_1 [L229] SORT_1 var_71 = var_71_arg_0 | var_71_arg_1; [L230] EXPR var_71 & mask_SORT_1 [L230] var_71 = var_71 & mask_SORT_1 [L231] SORT_12 var_66_arg_0 = state_14; [L232] SORT_12 var_66_arg_1 = var_28; [L233] SORT_1 var_66 = var_66_arg_0 == var_66_arg_1; [L234] SORT_1 var_63_arg_0 = input_2; [L235] EXPR var_63_arg_0 & mask_SORT_1 [L235] var_63_arg_0 = var_63_arg_0 & mask_SORT_1 [L236] SORT_7 var_63 = var_63_arg_0; [L237] SORT_7 var_64_arg_0 = var_63; [L238] SORT_7 var_64_arg_1 = var_57; [L239] SORT_1 var_64 = var_64_arg_0 == var_64_arg_1; [L240] SORT_1 var_65_arg_0 = var_64; [L241] SORT_12 var_65_arg_1 = var_45; [L242] SORT_12 var_65_arg_2 = var_38; [L243] SORT_12 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L244] SORT_1 var_67_arg_0 = var_66; [L245] SORT_12 var_67_arg_1 = var_65; [L246] SORT_12 var_67_arg_2 = input_62; [L247] SORT_12 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L248] SORT_12 var_60_arg_0 = state_14; [L249] SORT_12 var_60_arg_1 = var_31; [L250] SORT_1 var_60 = var_60_arg_0 == var_60_arg_1; [L251] SORT_1 var_56_arg_0 = input_2; [L252] EXPR var_56_arg_0 & mask_SORT_1 [L252] var_56_arg_0 = var_56_arg_0 & mask_SORT_1 [L253] SORT_7 var_56 = var_56_arg_0; [L254] SORT_7 var_58_arg_0 = var_56; [L255] SORT_7 var_58_arg_1 = var_57; [L256] SORT_1 var_58 = var_58_arg_0 == var_58_arg_1; [L257] SORT_1 var_59_arg_0 = var_58; [L258] SORT_12 var_59_arg_1 = var_28; [L259] SORT_12 var_59_arg_2 = var_41; [L260] SORT_12 var_59 = var_59_arg_0 ? var_59_arg_1 : var_59_arg_2; [L261] SORT_1 var_61_arg_0 = var_60; [L262] SORT_12 var_61_arg_1 = var_59; [L263] SORT_12 var_61_arg_2 = input_55; [L264] SORT_12 var_61 = var_61_arg_0 ? var_61_arg_1 : var_61_arg_2; [L265] SORT_1 var_69_arg_0 = var_68; [L266] SORT_12 var_69_arg_1 = var_67; [L267] SORT_12 var_69_arg_2 = var_61; [L268] SORT_12 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L269] SORT_12 var_53_arg_0 = state_14; [L270] SORT_12 var_53_arg_1 = var_13; [L271] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L272] SORT_1 var_54_arg_0 = var_53; [L273] SORT_12 var_54_arg_1 = var_31; [L274] SORT_12 var_54_arg_2 = state_14; [L275] SORT_12 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L276] SORT_1 var_72_arg_0 = var_71; [L277] SORT_12 var_72_arg_1 = var_69; [L278] SORT_12 var_72_arg_2 = var_54; [L279] SORT_12 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L280] SORT_1 var_90_arg_0 = var_89; [L281] SORT_12 var_90_arg_1 = var_85; [L282] SORT_12 var_90_arg_2 = var_72; [L283] SORT_12 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L284] EXPR var_90 & mask_SORT_12 [L284] var_90 = var_90 & mask_SORT_12 [L285] SORT_12 next_91_arg_1 = var_90; [L287] state_5 = next_52_arg_1 [L288] state_14 = next_91_arg_1 VAL [bad_24_arg_0=0, init_15_arg_1=0, init_6_arg_1=0, input_2=1, input_55=6, input_62=6, input_75=6, mask_SORT_12=7, mask_SORT_1=1, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_12=4, msb_SORT_1=1, msb_SORT_47=2, msb_SORT_7=2147483648, next_52_arg_1=0, next_91_arg_1=1, state_14=1, state_5=0, var_10=0, var_10_arg_0=0, var_10_arg_1=1, var_11=255, var_11_arg_0=0, var_13=0, var_16=0, var_16_arg_0=0, var_17=0, var_17_arg_0=0, var_17_arg_1=1, var_18=255, var_18_arg_0=255, var_18_arg_1=0, var_21=1, var_22=0, var_22_arg_0=255, var_23=0, var_23_arg_0=1, var_23_arg_1=0, var_26=1, var_26_arg_0=0, var_26_arg_1=0, var_27=0, var_27_arg_0=1, var_27_arg_1=0, var_27_arg_2=0, var_28=2, var_29=0, var_29_arg_0=0, var_29_arg_1=2, var_30=0, var_30_arg_0=0, var_30_arg_1=0, var_30_arg_2=0, var_31=1, var_32=0, var_32_arg_0=0, var_32_arg_1=1, var_33=0, var_33_arg_0=0, var_33_arg_1=0, var_34=0, var_34_arg_0=0, var_34_arg_1=0, var_34_arg_2=0, var_35=4, var_36=0, var_36_arg_0=0, var_36_arg_1=4, var_37=0, var_37_arg_0=0, var_37_arg_1=1, var_37_arg_2=0, var_38=6, var_39=0, var_39_arg_0=0, var_39_arg_1=6, var_40=0, var_40_arg_0=0, var_40_arg_1=0, var_40_arg_2=0, var_41=5, var_42=0, var_42_arg_0=0, var_42_arg_1=5, var_43=0, var_43_arg_0=0, var_43_arg_1=0, var_44=0, var_44_arg_0=0, var_44_arg_1=0, var_44_arg_2=0, var_45=3, var_46=0, var_46_arg_0=0, var_46_arg_1=3, var_48=0, var_48_arg_0=0, var_48_arg_1=0, var_49=0, var_49_arg_0=0, var_49_arg_1=0, var_4=0, var_50=0, var_50_arg_0=0, var_51=0, var_51_arg_0=0, var_51_arg_1=0, var_51_arg_2=0, var_53=1, var_53_arg_0=0, var_53_arg_1=0, var_54=1, var_54_arg_0=1, var_54_arg_1=1, var_54_arg_2=0, var_56=1, var_56_arg_0=1, var_57=0, var_58=0, var_58_arg_0=1, var_58_arg_1=0, var_59=5, var_59_arg_0=0, var_59_arg_1=2, var_59_arg_2=5, var_60=0, var_60_arg_0=0, var_60_arg_1=1, var_61=6, var_61_arg_0=0, var_61_arg_1=5, var_61_arg_2=6, var_63=1, var_63_arg_0=1, var_64=0, var_64_arg_0=1, var_64_arg_1=0, var_65=6, var_65_arg_0=0, var_65_arg_1=3, var_65_arg_2=6, var_66=0, var_66_arg_0=0, var_66_arg_1=2, var_67=6, var_67_arg_0=0, var_67_arg_1=6, var_67_arg_2=6, var_68=0, var_68_arg_0=0, var_68_arg_1=2, var_69=6, var_69_arg_0=0, var_69_arg_1=6, var_69_arg_2=6, var_70=0, var_70_arg_0=0, var_70_arg_1=1, var_71=0, var_71_arg_0=0, var_71_arg_1=0, var_72=1, var_72_arg_0=0, var_72_arg_1=6, var_72_arg_2=1, var_73=0, var_73_arg_0=0, var_73_arg_1=4, var_74=4, var_74_arg_0=0, var_74_arg_1=1, var_74_arg_2=4, var_76=1, var_76_arg_0=1, var_77=0, var_77_arg_0=1, var_77_arg_1=0, var_78=0, var_78_arg_0=0, var_78_arg_1=4, var_78_arg_2=0, var_79=0, var_79_arg_0=0, var_79_arg_1=6, var_80=6, var_80_arg_0=0, var_80_arg_1=0, var_80_arg_2=6, var_81=0, var_81_arg_0=0, var_81_arg_1=6, var_82=6, var_82_arg_0=0, var_82_arg_1=6, var_82_arg_2=6, var_83=0, var_83_arg_0=0, var_83_arg_1=5, var_84=0, var_84_arg_0=0, var_84_arg_1=0, var_85=4, var_85_arg_0=0, var_85_arg_1=6, var_85_arg_2=4, var_86=0, var_86_arg_0=0, var_86_arg_1=3, var_87=0, var_87_arg_0=0, var_87_arg_1=0, var_88=0, var_88_arg_0=0, var_88_arg_1=0, var_89=0, var_89_arg_0=0, var_8=0, var_8_arg_0=0, var_90=1, var_90_arg_0=0, var_90_arg_1=4, var_90_arg_2=1, var_9=1] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_55 = __VERIFIER_nondet_uchar() [L68] input_62 = __VERIFIER_nondet_uchar() [L69] input_75 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_8_arg_0 = state_5; [L73] EXPR var_8_arg_0 & mask_SORT_1 [L73] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L74] SORT_7 var_8 = var_8_arg_0; [L75] SORT_7 var_10_arg_0 = var_8; [L76] SORT_7 var_10_arg_1 = var_9; [L77] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L78] SORT_1 var_11_arg_0 = var_10; [L79] SORT_1 var_11 = ~var_11_arg_0; [L80] SORT_12 var_16_arg_0 = state_14; [L81] EXPR var_16_arg_0 & mask_SORT_12 [L81] var_16_arg_0 = var_16_arg_0 & mask_SORT_12 [L82] SORT_7 var_16 = var_16_arg_0; [L83] SORT_7 var_17_arg_0 = var_16; [L84] SORT_7 var_17_arg_1 = var_9; [L85] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L86] SORT_1 var_18_arg_0 = var_11; [L87] SORT_1 var_18_arg_1 = var_17; [L88] EXPR var_18_arg_0 | var_18_arg_1 [L88] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L89] SORT_1 var_22_arg_0 = var_18; [L90] SORT_1 var_22 = ~var_22_arg_0; [L91] SORT_1 var_23_arg_0 = var_21; [L92] SORT_1 var_23_arg_1 = var_22; [L93] EXPR var_23_arg_0 & var_23_arg_1 [L93] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L94] EXPR var_23 & mask_SORT_1 [L94] var_23 = var_23 & mask_SORT_1 [L95] SORT_1 bad_24_arg_0 = var_23; [L96] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L21] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L21] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=1, InterpolantAutomatonStates: 5, 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, 1 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 21:18:45,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:18:48,162 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:18:48,292 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2023-11-23 21:18:48,300 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:18:48,301 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:18:48,348 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:18:48,349 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:18:48,349 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:18:48,350 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:18:48,356 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:18:48,356 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:18:48,357 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:18:48,357 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:18:48,359 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:18:48,360 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:18:48,360 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:18:48,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:18:48,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:18:48,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:18:48,364 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:18:48,365 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:18:48,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:18:48,366 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:18:48,367 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:18:48,367 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:18:48,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:18:48,368 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:18:48,369 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:18:48,369 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:18:48,370 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:18:48,371 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:18:48,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:48,372 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:18:48,373 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:18:48,373 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:18:48,373 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:18:48,374 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:18:48,374 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:18:48,374 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:18:48,375 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:18:48,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:18:48,376 INFO L153 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e188a971cba665e2b77b0e826b47d617ddf57bd12a8f8136f6d81bf903c7591b [2023-11-23 21:18:48,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:18:48,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:18:48,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:18:48,837 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:18:48,838 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:18:48,840 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-23 21:18:51,992 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:18:52,330 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:18:52,331 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2023-11-23 21:18:52,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data/de25270a7/68139e0250f74e9192f8ee06360b339f/FLAG5ca2dee18 [2023-11-23 21:18:52,358 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/data/de25270a7/68139e0250f74e9192f8ee06360b339f [2023-11-23 21:18:52,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:18:52,361 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:18:52,364 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:52,364 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:18:52,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:18:52,376 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:52,377 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4465973e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52, skipping insertion in model container [2023-11-23 21:18:52,378 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:52,434 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:18:52,607 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_7806efa7-0d35-45c9-8d09-380768329f74/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-23 21:18:52,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:52,788 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:18:52,806 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_7806efa7-0d35-45c9-8d09-380768329f74/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1245,1258] [2023-11-23 21:18:52,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:18:52,933 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:18:52,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52 WrapperNode [2023-11-23 21:18:52,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:18:52,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:52,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:18:52,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:18:52,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:52,989 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,047 INFO L138 Inliner]: procedures = 17, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 293 [2023-11-23 21:18:53,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:18:53,048 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:18:53,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:18:53,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:18:53,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,078 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,109 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,119 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:18:53,120 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:18:53,120 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:18:53,120 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:18:53,121 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (1/1) ... [2023-11-23 21:18:53,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:18:53,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:18:53,184 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:18:53,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:18:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:18:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:18:53,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:18:53,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:18:53,389 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:18:53,392 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:18:53,778 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:18:53,860 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:18:53,860 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 21:18:53,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:53 BoogieIcfgContainer [2023-11-23 21:18:53,861 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:18:53,863 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:18:53,863 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:18:53,867 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:18:53,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:18:52" (1/3) ... [2023-11-23 21:18:53,868 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356e3489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:53, skipping insertion in model container [2023-11-23 21:18:53,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:18:52" (2/3) ... [2023-11-23 21:18:53,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@356e3489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:18:53, skipping insertion in model container [2023-11-23 21:18:53,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:18:53" (3/3) ... [2023-11-23 21:18:53,870 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2023-11-23 21:18:53,890 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:18:53,891 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:18:53,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:18:53,940 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@72f8bf99, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:18:53,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:18:53,945 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:53,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 21:18:53,951 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:53,952 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-23 21:18:53,953 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:53,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:53,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2023-11-23 21:18:53,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:18:53,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [140215879] [2023-11-23 21:18:53,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:53,974 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:18:53,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:18:53,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:18:53,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 21:18:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:54,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 21:18:54,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:18:54,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:18:54,563 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:18:54,564 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:18:54,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [140215879] [2023-11-23 21:18:54,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [140215879] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:18:54,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:18:54,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:18:54,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263206874] [2023-11-23 21:18:54,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:18:54,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 21:18:54,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:18:54,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 21:18:54,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 21:18:54,616 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:54,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:18:54,699 INFO L93 Difference]: Finished difference Result 16 states and 24 transitions. [2023-11-23 21:18:54,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 21:18:54,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-23 21:18:54,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:18:54,710 INFO L225 Difference]: With dead ends: 16 [2023-11-23 21:18:54,711 INFO L226 Difference]: Without dead ends: 9 [2023-11-23 21:18:54,713 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 [2023-11-23 21:18:54,718 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, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:18:54,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:18:54,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-11-23 21:18:54,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2023-11-23 21:18:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-23 21:18:54,756 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2023-11-23 21:18:54,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:18:54,757 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2023-11-23 21:18:54,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:18:54,757 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-23 21:18:54,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 21:18:54,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:18:54,758 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-23 21:18:54,768 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:18:54,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:18:54,964 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:18:54,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:18:54,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1393329571, now seen corresponding path program 1 times [2023-11-23 21:18:54,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:18:54,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119199162] [2023-11-23 21:18:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:18:54,969 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 21:18:54,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:18:54,971 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 21:18:55,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7806efa7-0d35-45c9-8d09-380768329f74/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:18:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:18:55,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 74 conjunts are in the unsatisfiable core [2023-11-23 21:18:55,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:18:56,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 21:18:56,603 INFO L327 TraceCheckSpWp]: Computing backward predicates...