./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje --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 cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:01:04,959 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:01:05,044 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:01:05,052 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:01:05,056 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:01:05,095 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:01:05,098 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:01:05,098 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:01:05,099 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:01:05,100 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:01:05,101 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:01:05,102 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:01:05,102 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:01:05,103 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:01:05,103 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:01:05,103 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:01:05,104 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:01:05,104 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:01:05,104 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:01:05,105 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:01:05,105 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:01:05,110 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:01:05,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:01:05,112 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:01:05,112 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:01:05,113 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:01:05,113 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:01:05,113 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:01:05,114 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:01:05,114 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:01:05,114 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:01:05,115 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:01:05,115 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:01:05,116 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:01:05,116 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:01:05,117 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:01:05,117 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:01:05,117 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:01:05,118 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:01:05,118 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:01:05,118 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:01:05,119 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:01:05,119 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:01:05,119 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:01:05,119 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_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa [2024-11-09 06:01:05,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:01:05,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:01:05,399 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:01:05,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:01:05,401 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:01:05,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c Unable to find full path for "g++" [2024-11-09 06:01:07,384 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:01:07,581 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:01:07,582 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2024-11-09 06:01:07,591 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data/2d4cc3edd/da348f9bb601474fb4a572f0b7df42ca/FLAG4b50939e6 [2024-11-09 06:01:07,606 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data/2d4cc3edd/da348f9bb601474fb4a572f0b7df42ca [2024-11-09 06:01:07,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:01:07,613 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:01:07,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:07,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:01:07,622 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:01:07,623 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:07,625 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@141481ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07, skipping insertion in model container [2024-11-09 06:01:07,625 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:07,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:01:07,868 WARN L250 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_62869e0c-9430-4b2c-b7ad-633d19e07ac9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-09 06:01:07,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:07,919 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:01:07,929 WARN L250 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_62869e0c-9430-4b2c-b7ad-633d19e07ac9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-09 06:01:07,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:07,966 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:01:07,966 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07 WrapperNode [2024-11-09 06:01:07,967 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:07,968 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:01:07,968 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:01:07,968 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:01:07,978 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:07,993 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,073 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2024-11-09 06:01:08,075 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:01:08,076 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:01:08,076 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:01:08,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:01:08,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,088 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,102 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,108 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:01:08,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:01:08,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:01:08,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:01:08,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (1/1) ... [2024-11-09 06:01:08,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:01:08,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:01:08,153 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:01:08,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:01:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:01:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:01:08,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:01:08,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:01:08,290 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:01:08,293 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:01:08,767 INFO L? ?]: Removed 62 outVars from TransFormulas that were not future-live. [2024-11-09 06:01:08,767 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:01:09,062 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:01:09,062 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:01:09,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:09 BoogieIcfgContainer [2024-11-09 06:01:09,063 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:01:09,066 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:01:09,066 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:01:09,072 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:01:09,072 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:01:07" (1/3) ... [2024-11-09 06:01:09,073 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a98f097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:09, skipping insertion in model container [2024-11-09 06:01:09,073 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:07" (2/3) ... [2024-11-09 06:01:09,074 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a98f097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:09, skipping insertion in model container [2024-11-09 06:01:09,074 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:09" (3/3) ... [2024-11-09 06:01:09,076 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2024-11-09 06:01:09,095 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:01:09,096 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:01:09,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:01:09,178 INFO L333 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, 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;@277d0fb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:01:09,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:01:09,185 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) [2024-11-09 06:01:09,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 06:01:09,194 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:09,195 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 06:01:09,196 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:09,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:09,201 INFO L85 PathProgramCache]: Analyzing trace with hash 8037643, now seen corresponding path program 1 times [2024-11-09 06:01:09,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:01:09,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851741883] [2024-11-09 06:01:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:09,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:01:09,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:01:09,406 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:01:09,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:01:09,480 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 06:01:09,482 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:01:09,484 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:01:09,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:01:09,490 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 06:01:09,504 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:01:09,512 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:01:09,516 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:01:09 BoogieIcfgContainer [2024-11-09 06:01:09,516 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:01:09,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:01:09,518 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:01:09,518 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:01:09,519 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:09" (3/4) ... [2024-11-09 06:01:09,523 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 06:01:09,524 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:01:09,526 INFO L158 Benchmark]: Toolchain (without parser) took 1912.59ms. Allocated memory is still 195.0MB. Free memory was 156.7MB in the beginning and 125.3MB in the end (delta: 31.4MB). Peak memory consumption was 32.2MB. Max. memory is 16.1GB. [2024-11-09 06:01:09,527 INFO L158 Benchmark]: CDTParser took 1.11ms. Allocated memory is still 140.5MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:01:09,527 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.45ms. Allocated memory is still 195.0MB. Free memory was 156.7MB in the beginning and 143.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:01:09,528 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.34ms. Allocated memory is still 195.0MB. Free memory was 143.0MB in the beginning and 138.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 06:01:09,529 INFO L158 Benchmark]: Boogie Preprocessor took 38.42ms. Allocated memory is still 195.0MB. Free memory was 138.4MB in the beginning and 136.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:09,530 INFO L158 Benchmark]: RCFGBuilder took 947.41ms. Allocated memory is still 195.0MB. Free memory was 136.3MB in the beginning and 146.3MB in the end (delta: -10.0MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:09,530 INFO L158 Benchmark]: TraceAbstraction took 451.59ms. Allocated memory is still 195.0MB. Free memory was 146.3MB in the beginning and 126.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 06:01:09,531 INFO L158 Benchmark]: Witness Printer took 6.58ms. Allocated memory is still 195.0MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 922.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 06:01:09,534 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.11ms. Allocated memory is still 140.5MB. Free memory was 84.0MB in the beginning and 83.9MB in the end (delta: 134.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.45ms. Allocated memory is still 195.0MB. Free memory was 156.7MB in the beginning and 143.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.34ms. Allocated memory is still 195.0MB. Free memory was 143.0MB in the beginning and 138.4MB in the end (delta: 4.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.42ms. Allocated memory is still 195.0MB. Free memory was 138.4MB in the beginning and 136.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 947.41ms. Allocated memory is still 195.0MB. Free memory was 136.3MB in the beginning and 146.3MB in the end (delta: -10.0MB). Peak memory consumption was 51.1MB. Max. memory is 16.1GB. * TraceAbstraction took 451.59ms. Allocated memory is still 195.0MB. Free memory was 146.3MB in the beginning and 126.3MB in the end (delta: 20.1MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 6.58ms. Allocated memory is still 195.0MB. Free memory was 126.3MB in the beginning and 125.3MB in the end (delta: 922.0kB). 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: 22]: 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 44. Possible FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_1 var_10 = 1; [L31] const SORT_1 var_13 = 0; [L33] SORT_1 input_2; [L35] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L35] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 [L37] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_12_arg_1 = var_10; [L40] state_11 = init_12_arg_1 VAL [mask_SORT_1=1, state_11=1, state_3=0, state_4=0, var_13=0] [L43] input_2 = __VERIFIER_nondet_uchar() [L44] EXPR input_2 & mask_SORT_1 [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] EXPR var_15_arg_1 & mask_SORT_1 [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 06:01:09,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje --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 cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:01:12,038 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:01:12,145 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2024-11-09 06:01:12,151 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:01:12,154 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:01:12,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:01:12,193 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:01:12,193 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:01:12,194 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:01:12,195 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:01:12,196 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:01:12,196 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:01:12,196 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:01:12,197 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:01:12,199 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:01:12,199 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:01:12,200 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:01:12,200 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:01:12,201 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:01:12,201 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:01:12,204 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:01:12,205 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:01:12,205 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 06:01:12,205 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 06:01:12,206 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:01:12,206 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 06:01:12,206 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:01:12,206 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:01:12,207 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:01:12,207 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 06:01:12,207 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:01:12,207 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:01:12,208 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:01:12,208 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:01:12,208 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:01:12,210 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:01:12,211 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 06:01:12,211 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 06:01:12,211 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:01:12,211 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:01:12,212 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb35da9c160c8cc3a4e8eb0847ad52031566203029d285a75392d741632a8daa [2024-11-09 06:01:12,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:01:12,697 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:01:12,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:01:12,704 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:01:12,705 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:01:12,706 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c Unable to find full path for "g++" [2024-11-09 06:01:14,900 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:01:15,126 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:01:15,127 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c [2024-11-09 06:01:15,135 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data/50f0bf96b/af56a548b89a4835a4745757241cdf6f/FLAG06b7489d0 [2024-11-09 06:01:15,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/data/50f0bf96b/af56a548b89a4835a4745757241cdf6f [2024-11-09 06:01:15,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:01:15,152 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:01:15,154 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:15,154 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:01:15,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:01:15,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1547f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15, skipping insertion in model container [2024-11-09 06:01:15,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,179 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:01:15,357 WARN L250 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_62869e0c-9430-4b2c-b7ad-633d19e07ac9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-09 06:01:15,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:15,410 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:01:15,425 WARN L250 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_62869e0c-9430-4b2c-b7ad-633d19e07ac9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.noninitstate.c[1262,1275] [2024-11-09 06:01:15,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:01:15,476 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:01:15,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15 WrapperNode [2024-11-09 06:01:15,476 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:01:15,477 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:01:15,478 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:01:15,478 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:01:15,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,499 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,521 INFO L138 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 73 [2024-11-09 06:01:15,524 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:01:15,525 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:01:15,525 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:01:15,525 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:01:15,535 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,535 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,548 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,555 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,561 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,562 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,564 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:01:15,568 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:01:15,568 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:01:15,569 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:01:15,569 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (1/1) ... [2024-11-09 06:01:15,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:01:15,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:01:15,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:01:15,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:01:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:01:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 06:01:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:01:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:01:15,774 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:01:15,779 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:01:15,994 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-09 06:01:15,995 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:01:16,009 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:01:16,009 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:01:16,010 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:16 BoogieIcfgContainer [2024-11-09 06:01:16,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:01:16,015 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:01:16,016 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:01:16,019 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:01:16,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:01:15" (1/3) ... [2024-11-09 06:01:16,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca8b1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:16, skipping insertion in model container [2024-11-09 06:01:16,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:15" (2/3) ... [2024-11-09 06:01:16,021 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ca8b1c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:16, skipping insertion in model container [2024-11-09 06:01:16,021 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:16" (3/3) ... [2024-11-09 06:01:16,024 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.noninitstate.c [2024-11-09 06:01:16,043 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:01:16,043 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:01:16,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:01:16,115 INFO L333 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, 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;@659e2ce7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:01:16,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:01:16,119 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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) [2024-11-09 06:01:16,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:01:16,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:16,126 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:16,126 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:16,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:16,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1809708109, now seen corresponding path program 1 times [2024-11-09 06:01:16,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:16,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1942863419] [2024-11-09 06:01:16,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:16,146 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 [2024-11-09 06:01:16,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:16,149 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:01:16,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:16,262 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 06:01:16,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:16,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:01:16,281 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:16,282 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:16,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1942863419] [2024-11-09 06:01:16,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1942863419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:16,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:16,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 06:01:16,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247993013] [2024-11-09 06:01:16,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:16,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 06:01:16,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:16,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 06:01:16,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:01:16,320 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-09 06:01:16,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:16,352 INFO L93 Difference]: Finished difference Result 20 states and 27 transitions. [2024-11-09 06:01:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 06:01:16,356 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 [2024-11-09 06:01:16,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:16,364 INFO L225 Difference]: With dead ends: 20 [2024-11-09 06:01:16,364 INFO L226 Difference]: Without dead ends: 9 [2024-11-09 06:01:16,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 06:01:16,374 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:16,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 06:01:16,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2024-11-09 06:01:16,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2024-11-09 06:01:16,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 06:01:16,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-09 06:01:16,410 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2024-11-09 06:01:16,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:16,410 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-09 06:01:16,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-11-09 06:01:16,412 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-09 06:01:16,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 06:01:16,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:16,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:16,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:16,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:16,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:16,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:16,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1809767691, now seen corresponding path program 1 times [2024-11-09 06:01:16,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:16,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [389333241] [2024-11-09 06:01:16,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:16,617 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 [2024-11-09 06:01:16,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:16,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:01:16,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:16,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:01:16,712 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 06:01:16,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:01:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 06:01:17,136 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:01:17,136 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 06:01:17,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [389333241] [2024-11-09 06:01:17,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [389333241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:01:17,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:01:17,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 06:01:17,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694581987] [2024-11-09 06:01:17,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:01:17,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 06:01:17,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 06:01:17,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 06:01:17,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:01:17,153 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2024-11-09 06:01:17,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:01:17,216 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-09 06:01:17,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 06:01:17,218 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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 [2024-11-09 06:01:17,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:01:17,218 INFO L225 Difference]: With dead ends: 15 [2024-11-09 06:01:17,219 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 06:01:17,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 06:01:17,220 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:01:17,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 06:01:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 06:01:17,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 06:01:17,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 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) [2024-11-09 06:01:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-09 06:01:17,231 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 7 [2024-11-09 06:01:17,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:01:17,231 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-09 06:01:17,231 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 states have internal predecessors, (7), 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) [2024-11-09 06:01:17,232 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-09 06:01:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 06:01:17,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:01:17,232 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-09 06:01:17,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 06:01:17,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:17,438 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:01:17,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:01:17,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1841040349, now seen corresponding path program 1 times [2024-11-09 06:01:17,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 06:01:17,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [19864883] [2024-11-09 06:01:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:01:17,440 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 [2024-11-09 06:01:17,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 06:01:17,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 06:01:17,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:17,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:01:17,538 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 06:01:17,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 06:01:17,603 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 06:01:17,603 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 06:01:17,608 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 06:01:17,614 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:17,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 06:01:17,813 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-09 06:01:17,832 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:01:17,832 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:01:17,837 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 06:01:17,840 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 06:01:17 BoogieIcfgContainer [2024-11-09 06:01:17,840 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 06:01:17,840 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 06:01:17,841 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 06:01:17,841 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 06:01:17,841 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:01:16" (3/4) ... [2024-11-09 06:01:17,842 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 06:01:17,846 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:01:17,847 WARN L290 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2024-11-09 06:01:17,898 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 06:01:17,899 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 06:01:17,900 INFO L158 Benchmark]: Toolchain (without parser) took 2747.02ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 57.9MB in the beginning and 68.5MB in the end (delta: -10.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,900 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 81.8MB. Free memory was 57.6MB in the beginning and 57.4MB in the end (delta: 142.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.89ms. Allocated memory is still 81.8MB. Free memory was 57.9MB in the beginning and 44.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,901 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.94ms. Allocated memory is still 81.8MB. Free memory was 44.3MB in the beginning and 42.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,901 INFO L158 Benchmark]: Boogie Preprocessor took 42.67ms. Allocated memory is still 81.8MB. Free memory was 42.4MB in the beginning and 41.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,901 INFO L158 Benchmark]: RCFGBuilder took 444.10ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 51.6MB in the end (delta: -10.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,902 INFO L158 Benchmark]: TraceAbstraction took 1825.33ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 50.9MB in the beginning and 71.2MB in the end (delta: -20.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,902 INFO L158 Benchmark]: Witness Printer took 58.28ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 68.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 06:01:17,905 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 81.8MB. Free memory was 57.6MB in the beginning and 57.4MB in the end (delta: 142.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.89ms. Allocated memory is still 81.8MB. Free memory was 57.9MB in the beginning and 44.3MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.94ms. Allocated memory is still 81.8MB. Free memory was 44.3MB in the beginning and 42.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.67ms. Allocated memory is still 81.8MB. Free memory was 42.4MB in the beginning and 41.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 444.10ms. Allocated memory is still 81.8MB. Free memory was 41.1MB in the beginning and 51.6MB in the end (delta: -10.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1825.33ms. Allocated memory was 81.8MB in the beginning and 107.0MB in the end (delta: 25.2MB). Free memory was 50.9MB in the beginning and 71.2MB in the end (delta: -20.3MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Witness Printer took 58.28ms. Allocated memory is still 107.0MB. Free memory was 71.2MB in the beginning and 68.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 22]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L27] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L28] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L30] const SORT_1 var_10 = 1; [L31] const SORT_1 var_13 = 0; [L33] SORT_1 input_2; [L35] SORT_1 state_3 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L36] SORT_1 state_4 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L37] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L39] SORT_1 init_12_arg_1 = var_10; [L40] state_11 = init_12_arg_1 VAL [mask_SORT_1=1, state_11=1, state_3=1, state_4=0, var_13=0] [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND FALSE !(!(cond)) [L57] RET __VERIFIER_assert(!(bad_17_arg_0)) [L59] SORT_1 var_5_arg_0 = ~input_2; [L60] var_5_arg_0 = var_5_arg_0 & mask_SORT_1 [L61] SORT_1 var_5_arg_1 = ~state_3; [L62] var_5_arg_1 = var_5_arg_1 & mask_SORT_1 [L63] SORT_1 var_5_arg_2 = state_3; [L64] SORT_1 var_5 = var_5_arg_0 ? var_5_arg_1 : var_5_arg_2; [L65] var_5 = var_5 & mask_SORT_1 [L66] SORT_1 next_7_arg_1 = var_5; [L67] SORT_1 var_6_arg_0 = input_2; [L68] SORT_1 var_6_arg_1 = ~state_4; [L69] var_6_arg_1 = var_6_arg_1 & mask_SORT_1 [L70] SORT_1 var_6_arg_2 = state_4; [L71] SORT_1 var_6 = var_6_arg_0 ? var_6_arg_1 : var_6_arg_2; [L72] var_6 = var_6 & mask_SORT_1 [L73] SORT_1 next_8_arg_1 = var_6; [L74] SORT_1 next_14_arg_1 = var_13; [L76] state_3 = next_7_arg_1 [L77] state_4 = next_8_arg_1 [L78] state_11 = next_14_arg_1 [L43] input_2 = __VERIFIER_nondet_uchar() [L44] input_2 = input_2 & mask_SORT_1 [L46] SORT_1 var_9_arg_0 = state_3; [L47] SORT_1 var_9_arg_1 = state_4; [L48] SORT_1 var_9 = var_9_arg_0 == var_9_arg_1; [L49] SORT_1 var_15_arg_0 = state_11; [L50] SORT_1 var_15_arg_1 = ~var_9; [L51] var_15_arg_1 = var_15_arg_1 & mask_SORT_1 [L52] SORT_1 var_15 = !var_15_arg_0 || var_15_arg_1; [L53] SORT_1 constr_16_arg_0 = var_15; [L54] CALL assume_abort_if_not(constr_16_arg_0) [L23] COND FALSE !(!cond) [L54] RET assume_abort_if_not(constr_16_arg_0) [L56] SORT_1 bad_17_arg_0 = var_9; [L57] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L22] COND TRUE !(cond) [L22] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 1 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 proved your program to be incorrect! [2024-11-09 06:01:17,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62869e0c-9430-4b2c-b7ad-633d19e07ac9/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE