./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --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 a55279f4902e2d215af953f0a5b477ae98deec0723da38b19ff005dc823ff8bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:25:23,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:25:23,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:25:23,230 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:25:23,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:25:23,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:25:23,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:25:23,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:25:23,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:25:23,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:25:23,251 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:25:23,253 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:25:23,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:25:23,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:25:23,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:25:23,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:25:23,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:25:23,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:25:23,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:25:23,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:25:23,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:25:23,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:25:23,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:25:23,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:25:23,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:25:23,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:25:23,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:25:23,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:25:23,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:25:23,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:25:23,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:25:23,296 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:25:23,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:25:23,299 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:25:23,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:25:23,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:25:23,302 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:25:23,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:25:23,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:25:23,304 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:25:23,305 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:25:23,305 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:25:23,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:25:23,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:25:23,347 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:25:23,347 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:25:23,348 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:25:23,348 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:25:23,349 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:25:23,349 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:25:23,349 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:25:23,350 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:25:23,351 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:25:23,351 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:25:23,351 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:25:23,352 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:25:23,352 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:25:23,352 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:25:23,352 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:25:23,353 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:25:23,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:25:23,354 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:25:23,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:25:23,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:25:23,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:25:23,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:25:23,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:25:23,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:25:23,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:25:23,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:25:23,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:25:23,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:23,357 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:25:23,357 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:25:23,358 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:25:23,358 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:25:23,358 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:25:23,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:25:23,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:25:23,359 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:25:23,359 INFO L138 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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a55279f4902e2d215af953f0a5b477ae98deec0723da38b19ff005dc823ff8bf [2022-11-23 14:25:23,707 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:25:23,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:25:23,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:25:23,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:25:23,753 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:25:23,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c [2022-11-23 14:25:26,813 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:25:27,071 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:25:27,071 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c [2022-11-23 14:25:27,080 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data/a0849ca09/b858aad77bbe42da89f93000b9ad44c6/FLAG63f854971 [2022-11-23 14:25:27,095 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data/a0849ca09/b858aad77bbe42da89f93000b9ad44c6 [2022-11-23 14:25:27,097 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:25:27,099 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:25:27,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:27,100 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:25:27,104 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:25:27,105 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f5cfcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27, skipping insertion in model container [2022-11-23 14:25:27,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:25:27,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:25:27,285 WARN L237 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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c[1107,1120] [2022-11-23 14:25:27,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:27,368 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:25:27,383 WARN L237 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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c[1107,1120] [2022-11-23 14:25:27,461 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:27,479 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:25:27,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27 WrapperNode [2022-11-23 14:25:27,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:27,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:27,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:25:27,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:25:27,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,569 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 243 [2022-11-23 14:25:27,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:27,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:25:27,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:25:27,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:25:27,593 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,629 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,635 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,640 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:25:27,641 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:25:27,641 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:25:27,642 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:25:27,642 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (1/1) ... [2022-11-23 14:25:27,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:27,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:27,688 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:25:27,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:25:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:25:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:25:27,884 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:25:27,896 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:25:28,924 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:25:28,941 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:25:28,945 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:25:28,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:28 BoogieIcfgContainer [2022-11-23 14:25:28,948 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:25:28,951 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:25:28,951 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:25:28,954 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:25:28,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:25:27" (1/3) ... [2022-11-23 14:25:28,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0f1015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:28, skipping insertion in model container [2022-11-23 14:25:28,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:27" (2/3) ... [2022-11-23 14:25:28,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c0f1015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:28, skipping insertion in model container [2022-11-23 14:25:28,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:28" (3/3) ... [2022-11-23 14:25:28,964 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Barrel.c [2022-11-23 14:25:28,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:25:28,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:25:29,043 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:25:29,054 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=LoopsAndPotentialCycles, 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;@4bdeb5ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:25:29,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:25:29,059 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) [2022-11-23 14:25:29,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:25:29,067 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:29,068 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:25:29,069 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:29,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:29,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-23 14:25:29,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:25:29,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291874952] [2022-11-23 14:25:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:29,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:25:31,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:25:31,465 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:25:33,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:25:33,141 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:25:33,143 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:25:33,145 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:25:33,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:25:33,152 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:25:33,156 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:25:33,197 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:25:33,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:25:33 BoogieIcfgContainer [2022-11-23 14:25:33,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:25:33,219 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:25:33,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:25:33,220 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:25:33,221 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:28" (3/4) ... [2022-11-23 14:25:33,229 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:25:33,230 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:25:33,232 INFO L158 Benchmark]: Toolchain (without parser) took 6132.80ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 113.7MB in the beginning and 74.4MB in the end (delta: 39.3MB). Peak memory consumption was 114.4MB. Max. memory is 16.1GB. [2022-11-23 14:25:33,232 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 159.4MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:25:33,233 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.30ms. Allocated memory is still 159.4MB. Free memory was 113.7MB in the beginning and 97.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-23 14:25:33,237 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.54ms. Allocated memory is still 159.4MB. Free memory was 97.9MB in the beginning and 94.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:33,239 INFO L158 Benchmark]: Boogie Preprocessor took 58.92ms. Allocated memory is still 159.4MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:33,243 INFO L158 Benchmark]: RCFGBuilder took 1307.14ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 92.3MB in the beginning and 151.6MB in the end (delta: -59.4MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. [2022-11-23 14:25:33,245 INFO L158 Benchmark]: TraceAbstraction took 4266.66ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 150.6MB in the beginning and 74.4MB in the end (delta: 76.2MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. [2022-11-23 14:25:33,246 INFO L158 Benchmark]: Witness Printer took 11.19ms. Allocated memory is still 232.8MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:25:33,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 159.4MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.30ms. Allocated memory is still 159.4MB. Free memory was 113.7MB in the beginning and 97.9MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.54ms. Allocated memory is still 159.4MB. Free memory was 97.9MB in the beginning and 94.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.92ms. Allocated memory is still 159.4MB. Free memory was 94.4MB in the beginning and 92.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1307.14ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 92.3MB in the beginning and 151.6MB in the end (delta: -59.4MB). Peak memory consumption was 85.0MB. Max. memory is 16.1GB. * TraceAbstraction took 4266.66ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 150.6MB in the beginning and 74.4MB in the end (delta: 76.2MB). Peak memory consumption was 126.8MB. Max. memory is 16.1GB. * Witness Printer took 11.19ms. Allocated memory is still 232.8MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 244, overapproximation of bitwiseOr at line 62, overapproximation of bitwiseAnd at line 74. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 2); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (2 - 1); [L31] const SORT_3 var_4 = 0; [L32] const SORT_1 var_78 = 1; [L34] SORT_1 input_2; [L36] SORT_3 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L37] SORT_3 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L38] SORT_3 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L39] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L41] SORT_3 init_6_arg_1 = var_4; [L42] state_5 = init_6_arg_1 [L43] SORT_3 init_9_arg_1 = var_4; [L44] state_8 = init_9_arg_1 [L45] SORT_3 init_26_arg_1 = var_4; [L46] state_25 = init_26_arg_1 [L47] SORT_3 init_44_arg_1 = var_4; [L48] state_43 = init_44_arg_1 VAL [init_26_arg_1=0, init_44_arg_1=0, init_6_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_3=3, msb_SORT_1=1, msb_SORT_3=2, state_25=0, state_43=0, state_5=0, state_8=0, var_4=0, var_78=1] [L51] input_2 = __VERIFIER_nondet_uchar() [L54] SORT_3 var_7_arg_0 = state_5; [L55] SORT_3 var_7_arg_1 = var_4; [L56] SORT_1 var_7 = var_7_arg_0 != var_7_arg_1; [L57] SORT_3 var_10_arg_0 = state_8; [L58] SORT_3 var_10_arg_1 = var_4; [L59] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L60] SORT_1 var_11_arg_0 = var_7; [L61] SORT_1 var_11_arg_1 = var_10; [L62] SORT_1 var_11 = var_11_arg_0 | var_11_arg_1; [L63] SORT_3 var_12_arg_0 = state_5; [L64] SORT_3 var_12_arg_1 = var_4; [L65] SORT_1 var_12 = var_12_arg_0 != var_12_arg_1; [L66] SORT_3 var_13_arg_0 = state_8; [L67] SORT_3 var_13_arg_1 = var_4; [L68] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L69] SORT_1 var_14_arg_0 = var_12; [L70] SORT_1 var_14_arg_1 = var_13; [L71] SORT_1 var_14 = var_14_arg_0 | var_14_arg_1; [L72] SORT_1 var_15_arg_0 = var_11; [L73] SORT_1 var_15_arg_1 = var_14; [L74] SORT_1 var_15 = var_15_arg_0 & var_15_arg_1; [L75] SORT_3 var_16_arg_0 = state_5; [L76] SORT_3 var_16_arg_1 = var_4; [L77] SORT_1 var_16 = var_16_arg_0 != var_16_arg_1; [L78] SORT_3 var_17_arg_0 = state_8; [L79] SORT_3 var_17_arg_1 = var_4; [L80] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L81] SORT_1 var_18_arg_0 = var_16; [L82] SORT_1 var_18_arg_1 = var_17; [L83] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L84] SORT_1 var_19_arg_0 = var_15; [L85] SORT_1 var_19_arg_1 = var_18; [L86] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L87] SORT_3 var_20_arg_0 = state_5; [L88] SORT_3 var_20_arg_1 = var_4; [L89] SORT_1 var_20 = var_20_arg_0 != var_20_arg_1; [L90] SORT_3 var_21_arg_0 = state_8; [L91] SORT_3 var_21_arg_1 = var_4; [L92] SORT_1 var_21 = var_21_arg_0 == var_21_arg_1; [L93] SORT_1 var_22_arg_0 = var_20; [L94] SORT_1 var_22_arg_1 = var_21; [L95] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L96] SORT_1 var_23_arg_0 = var_19; [L97] SORT_1 var_23_arg_1 = var_22; [L98] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L99] SORT_3 var_24_arg_0 = state_8; [L100] SORT_3 var_24_arg_1 = var_4; [L101] SORT_1 var_24 = var_24_arg_0 != var_24_arg_1; [L102] SORT_3 var_27_arg_0 = state_25; [L103] SORT_3 var_27_arg_1 = var_4; [L104] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L105] SORT_1 var_28_arg_0 = var_24; [L106] SORT_1 var_28_arg_1 = var_27; [L107] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L108] SORT_1 var_29_arg_0 = var_23; [L109] SORT_1 var_29_arg_1 = var_28; [L110] SORT_1 var_29 = var_29_arg_0 & var_29_arg_1; [L111] SORT_3 var_30_arg_0 = state_8; [L112] SORT_3 var_30_arg_1 = var_4; [L113] SORT_1 var_30 = var_30_arg_0 != var_30_arg_1; [L114] SORT_3 var_31_arg_0 = state_25; [L115] SORT_3 var_31_arg_1 = var_4; [L116] SORT_1 var_31 = var_31_arg_0 == var_31_arg_1; [L117] SORT_1 var_32_arg_0 = var_30; [L118] SORT_1 var_32_arg_1 = var_31; [L119] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L120] SORT_1 var_33_arg_0 = var_29; [L121] SORT_1 var_33_arg_1 = var_32; [L122] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L123] SORT_3 var_34_arg_0 = state_8; [L124] SORT_3 var_34_arg_1 = var_4; [L125] SORT_1 var_34 = var_34_arg_0 != var_34_arg_1; [L126] SORT_3 var_35_arg_0 = state_25; [L127] SORT_3 var_35_arg_1 = var_4; [L128] SORT_1 var_35 = var_35_arg_0 == var_35_arg_1; [L129] SORT_1 var_36_arg_0 = var_34; [L130] SORT_1 var_36_arg_1 = var_35; [L131] SORT_1 var_36 = var_36_arg_0 | var_36_arg_1; [L132] SORT_1 var_37_arg_0 = var_33; [L133] SORT_1 var_37_arg_1 = var_36; [L134] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L135] SORT_3 var_38_arg_0 = state_8; [L136] SORT_3 var_38_arg_1 = var_4; [L137] SORT_1 var_38 = var_38_arg_0 != var_38_arg_1; [L138] SORT_3 var_39_arg_0 = state_25; [L139] SORT_3 var_39_arg_1 = var_4; [L140] SORT_1 var_39 = var_39_arg_0 == var_39_arg_1; [L141] SORT_1 var_40_arg_0 = var_38; [L142] SORT_1 var_40_arg_1 = var_39; [L143] SORT_1 var_40 = var_40_arg_0 | var_40_arg_1; [L144] SORT_1 var_41_arg_0 = var_37; [L145] SORT_1 var_41_arg_1 = var_40; [L146] SORT_1 var_41 = var_41_arg_0 & var_41_arg_1; [L147] SORT_3 var_42_arg_0 = state_25; [L148] SORT_3 var_42_arg_1 = var_4; [L149] SORT_1 var_42 = var_42_arg_0 != var_42_arg_1; [L150] SORT_3 var_45_arg_0 = state_43; [L151] SORT_3 var_45_arg_1 = var_4; [L152] SORT_1 var_45 = var_45_arg_0 == var_45_arg_1; [L153] SORT_1 var_46_arg_0 = var_42; [L154] SORT_1 var_46_arg_1 = var_45; [L155] SORT_1 var_46 = var_46_arg_0 | var_46_arg_1; [L156] SORT_1 var_47_arg_0 = var_41; [L157] SORT_1 var_47_arg_1 = var_46; [L158] SORT_1 var_47 = var_47_arg_0 & var_47_arg_1; [L159] SORT_3 var_48_arg_0 = state_25; [L160] SORT_3 var_48_arg_1 = var_4; [L161] SORT_1 var_48 = var_48_arg_0 != var_48_arg_1; [L162] SORT_3 var_49_arg_0 = state_43; [L163] SORT_3 var_49_arg_1 = var_4; [L164] SORT_1 var_49 = var_49_arg_0 == var_49_arg_1; [L165] SORT_1 var_50_arg_0 = var_48; [L166] SORT_1 var_50_arg_1 = var_49; [L167] SORT_1 var_50 = var_50_arg_0 | var_50_arg_1; [L168] SORT_1 var_51_arg_0 = var_47; [L169] SORT_1 var_51_arg_1 = var_50; [L170] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L171] SORT_3 var_52_arg_0 = state_25; [L172] SORT_3 var_52_arg_1 = var_4; [L173] SORT_1 var_52 = var_52_arg_0 != var_52_arg_1; [L174] SORT_3 var_53_arg_0 = state_43; [L175] SORT_3 var_53_arg_1 = var_4; [L176] SORT_1 var_53 = var_53_arg_0 == var_53_arg_1; [L177] SORT_1 var_54_arg_0 = var_52; [L178] SORT_1 var_54_arg_1 = var_53; [L179] SORT_1 var_54 = var_54_arg_0 | var_54_arg_1; [L180] SORT_1 var_55_arg_0 = var_51; [L181] SORT_1 var_55_arg_1 = var_54; [L182] SORT_1 var_55 = var_55_arg_0 & var_55_arg_1; [L183] SORT_3 var_56_arg_0 = state_25; [L184] SORT_3 var_56_arg_1 = var_4; [L185] SORT_1 var_56 = var_56_arg_0 != var_56_arg_1; [L186] SORT_3 var_57_arg_0 = state_43; [L187] SORT_3 var_57_arg_1 = var_4; [L188] SORT_1 var_57 = var_57_arg_0 == var_57_arg_1; [L189] SORT_1 var_58_arg_0 = var_56; [L190] SORT_1 var_58_arg_1 = var_57; [L191] SORT_1 var_58 = var_58_arg_0 | var_58_arg_1; [L192] SORT_1 var_59_arg_0 = var_55; [L193] SORT_1 var_59_arg_1 = var_58; [L194] SORT_1 var_59 = var_59_arg_0 & var_59_arg_1; [L195] SORT_3 var_60_arg_0 = state_43; [L196] SORT_3 var_60_arg_1 = var_4; [L197] SORT_1 var_60 = var_60_arg_0 != var_60_arg_1; [L198] SORT_3 var_61_arg_0 = state_5; [L199] SORT_3 var_61_arg_1 = var_4; [L200] SORT_1 var_61 = var_61_arg_0 == var_61_arg_1; [L201] SORT_1 var_62_arg_0 = var_60; [L202] SORT_1 var_62_arg_1 = var_61; [L203] SORT_1 var_62 = var_62_arg_0 | var_62_arg_1; [L204] SORT_1 var_63_arg_0 = var_59; [L205] SORT_1 var_63_arg_1 = var_62; [L206] SORT_1 var_63 = var_63_arg_0 & var_63_arg_1; [L207] SORT_3 var_64_arg_0 = state_43; [L208] SORT_3 var_64_arg_1 = var_4; [L209] SORT_1 var_64 = var_64_arg_0 != var_64_arg_1; [L210] SORT_3 var_65_arg_0 = state_5; [L211] SORT_3 var_65_arg_1 = var_4; [L212] SORT_1 var_65 = var_65_arg_0 == var_65_arg_1; [L213] SORT_1 var_66_arg_0 = var_64; [L214] SORT_1 var_66_arg_1 = var_65; [L215] SORT_1 var_66 = var_66_arg_0 | var_66_arg_1; [L216] SORT_1 var_67_arg_0 = var_63; [L217] SORT_1 var_67_arg_1 = var_66; [L218] SORT_1 var_67 = var_67_arg_0 & var_67_arg_1; [L219] SORT_3 var_68_arg_0 = state_43; [L220] SORT_3 var_68_arg_1 = var_4; [L221] SORT_1 var_68 = var_68_arg_0 != var_68_arg_1; [L222] SORT_3 var_69_arg_0 = state_5; [L223] SORT_3 var_69_arg_1 = var_4; [L224] SORT_1 var_69 = var_69_arg_0 == var_69_arg_1; [L225] SORT_1 var_70_arg_0 = var_68; [L226] SORT_1 var_70_arg_1 = var_69; [L227] SORT_1 var_70 = var_70_arg_0 | var_70_arg_1; [L228] SORT_1 var_71_arg_0 = var_67; [L229] SORT_1 var_71_arg_1 = var_70; [L230] SORT_1 var_71 = var_71_arg_0 & var_71_arg_1; [L231] SORT_3 var_72_arg_0 = state_43; [L232] SORT_3 var_72_arg_1 = var_4; [L233] SORT_1 var_72 = var_72_arg_0 != var_72_arg_1; [L234] SORT_3 var_73_arg_0 = state_5; [L235] SORT_3 var_73_arg_1 = var_4; [L236] SORT_1 var_73 = var_73_arg_0 == var_73_arg_1; [L237] SORT_1 var_74_arg_0 = var_72; [L238] SORT_1 var_74_arg_1 = var_73; [L239] SORT_1 var_74 = var_74_arg_0 | var_74_arg_1; [L240] SORT_1 var_75_arg_0 = var_71; [L241] SORT_1 var_75_arg_1 = var_74; [L242] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L243] SORT_1 var_79_arg_0 = var_75; [L244] SORT_1 var_79 = ~var_79_arg_0; [L245] SORT_1 var_80_arg_0 = var_78; [L246] SORT_1 var_80_arg_1 = var_79; [L247] SORT_1 var_80 = var_80_arg_0 & var_80_arg_1; [L248] var_80 = var_80 & mask_SORT_1 [L249] SORT_1 bad_81_arg_0 = var_80; [L250] CALL __VERIFIER_assert(!(bad_81_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.1s, 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, 2.3s 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 [2022-11-23 14:25:33,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --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 a55279f4902e2d215af953f0a5b477ae98deec0723da38b19ff005dc823ff8bf --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 14:25:35,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:25:35,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:25:35,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:25:35,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:25:35,807 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:25:35,810 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:25:35,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:25:35,816 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:25:35,823 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:25:35,825 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:25:35,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:25:35,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:25:35,831 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:25:35,833 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:25:35,838 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:25:35,839 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:25:35,840 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:25:35,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:25:35,847 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:25:35,851 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:25:35,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:25:35,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:25:35,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:25:35,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:25:35,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:25:35,863 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:25:35,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:25:35,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:25:35,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:25:35,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:25:35,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:25:35,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:25:35,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:25:35,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:25:35,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:25:35,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:25:35,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:25:35,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:25:35,886 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:25:35,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:25:35,892 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:25:35,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:25:35,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:25:35,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:25:35,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:25:35,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:25:35,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:25:35,941 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:25:35,941 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:25:35,941 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:25:35,942 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:25:35,943 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:25:35,943 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:25:35,944 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:25:35,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:25:35,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:25:35,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:25:35,945 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:25:35,945 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:25:35,946 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:25:35,946 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:25:35,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:25:35,946 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:25:35,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:25:35,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:25:35,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:25:35,947 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:25:35,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:35,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:25:35,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:25:35,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:25:35,949 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:25:35,949 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:25:35,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:25:35,950 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:25:35,950 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:25:35,950 INFO L138 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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a55279f4902e2d215af953f0a5b477ae98deec0723da38b19ff005dc823ff8bf [2022-11-23 14:25:36,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:25:36,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:25:36,363 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:25:36,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:25:36,365 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:25:36,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c [2022-11-23 14:25:39,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:25:39,825 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:25:39,826 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c [2022-11-23 14:25:39,835 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data/926d1fd52/cb503368665749f29f2831c5a1d328a1/FLAGb892040b1 [2022-11-23 14:25:39,856 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/data/926d1fd52/cb503368665749f29f2831c5a1d328a1 [2022-11-23 14:25:39,859 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:25:39,860 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:25:39,862 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:39,863 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:25:39,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:25:39,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:39" (1/1) ... [2022-11-23 14:25:39,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@136c8de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:39, skipping insertion in model container [2022-11-23 14:25:39,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:25:39" (1/1) ... [2022-11-23 14:25:39,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:25:39,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:25:40,090 WARN L237 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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c[1107,1120] [2022-11-23 14:25:40,257 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:40,265 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:25:40,285 WARN L237 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_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Barrel.c[1107,1120] [2022-11-23 14:25:40,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:25:40,377 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:25:40,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40 WrapperNode [2022-11-23 14:25:40,380 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:25:40,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:40,382 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:25:40,382 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:25:40,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,413 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,469 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 243 [2022-11-23 14:25:40,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:25:40,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:25:40,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:25:40,474 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:25:40,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,500 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,519 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,544 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:25:40,545 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:25:40,546 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:25:40,546 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:25:40,547 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (1/1) ... [2022-11-23 14:25:40,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:25:40,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:25:40,604 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:25:40,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:25:40,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:25:40,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:25:40,845 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:25:40,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:25:41,153 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:25:41,160 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:25:41,163 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:25:41,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:41 BoogieIcfgContainer [2022-11-23 14:25:41,166 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:25:41,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:25:41,170 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:25:41,174 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:25:41,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:25:39" (1/3) ... [2022-11-23 14:25:41,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59de8e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:41, skipping insertion in model container [2022-11-23 14:25:41,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:25:40" (2/3) ... [2022-11-23 14:25:41,178 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59de8e82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:25:41, skipping insertion in model container [2022-11-23 14:25:41,178 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:41" (3/3) ... [2022-11-23 14:25:41,182 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Barrel.c [2022-11-23 14:25:41,203 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:25:41,204 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:25:41,272 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:25:41,302 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=LoopsAndPotentialCycles, 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;@ab05e69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:25:41,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:25:41,306 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:25:41,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:25:41,313 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:25:41,314 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:25:41,315 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:25:41,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:25:41,323 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:25:41,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:25:41,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569292005] [2022-11-23 14:25:41,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:25:41,341 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 [2022-11-23 14:25:41,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:25:41,350 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:25:41,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:25:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:25:41,642 WARN L261 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 143 conjunts are in the unsatisfiable core [2022-11-23 14:25:41,659 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:25:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:25:43,547 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:25:43,548 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:25:43,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569292005] [2022-11-23 14:25:43,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569292005] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:25:43,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:25:43,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:25:43,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051777864] [2022-11-23 14:25:43,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:25:43,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:25:43,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:25:43,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:25:43,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:25:43,612 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:25:43,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:25:43,709 INFO L93 Difference]: Finished difference Result 15 states and 22 transitions. [2022-11-23 14:25:43,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 14:25:43,713 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-23 14:25:43,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:25:43,720 INFO L225 Difference]: With dead ends: 15 [2022-11-23 14:25:43,721 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:25:43,724 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:25:43,729 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:25:43,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:25:43,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:25:43,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:25:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:25:43,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:25:43,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2022-11-23 14:25:43,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:25:43,759 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:25:43,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:25:43,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:25:43,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:25:43,763 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:25:43,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-23 14:25:43,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:25:43,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:25:44,031 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:25:44,032 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 14:25:44,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:25:44,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 14:25:44,033 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 14:25:44,033 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 14:25:44,034 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 14:25:44,034 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 14:25:44,034 INFO L895 garLoopResultBuilder]: At program point L49-2(lines 49 261) the Hoare annotation is: (and (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|) (= |ULTIMATE.start_main_~state_8~0#1| |ULTIMATE.start_main_~var_4~0#1|) (= |ULTIMATE.start_main_~state_5~0#1| |ULTIMATE.start_main_~var_4~0#1|) (= |ULTIMATE.start_main_~var_4~0#1| |ULTIMATE.start_main_~state_43~0#1|) (= |ULTIMATE.start_main_~var_4~0#1| |ULTIMATE.start_main_~state_25~0#1|) (= |ULTIMATE.start_main_~var_4~0#1| (_ bv0 8))) [2022-11-23 14:25:44,035 INFO L899 garLoopResultBuilder]: For program point L49-3(lines 49 261) no Hoare annotation was computed. [2022-11-23 14:25:44,035 INFO L895 garLoopResultBuilder]: At program point L262(lines 22 263) the Hoare annotation is: false [2022-11-23 14:25:44,039 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:25:44,042 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:25:44,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:25:44 BoogieIcfgContainer [2022-11-23 14:25:44,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:25:44,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:25:44,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:25:44,059 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:25:44,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:25:41" (3/4) ... [2022-11-23 14:25:44,062 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:25:44,079 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 14:25:44,079 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:25:44,080 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:25:44,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:25:44,161 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:25:44,162 INFO L158 Benchmark]: Toolchain (without parser) took 4301.21ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 55.7MB in the beginning and 106.5MB in the end (delta: -50.8MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2022-11-23 14:25:44,162 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:25:44,162 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.72ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 39.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-23 14:25:44,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 90.30ms. Allocated memory is still 77.6MB. Free memory was 39.8MB in the beginning and 37.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:25:44,163 INFO L158 Benchmark]: Boogie Preprocessor took 71.37ms. Allocated memory is still 77.6MB. Free memory was 36.9MB in the beginning and 34.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:25:44,164 INFO L158 Benchmark]: RCFGBuilder took 621.17ms. Allocated memory is still 77.6MB. Free memory was 34.9MB in the beginning and 33.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-23 14:25:44,164 INFO L158 Benchmark]: TraceAbstraction took 2888.50ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 32.9MB in the beginning and 110.7MB in the end (delta: -77.9MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-11-23 14:25:44,164 INFO L158 Benchmark]: Witness Printer took 103.21ms. Allocated memory is still 163.6MB. Free memory was 110.7MB in the beginning and 106.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:25:44,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 60.8MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.72ms. Allocated memory is still 77.6MB. Free memory was 55.5MB in the beginning and 39.8MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 90.30ms. Allocated memory is still 77.6MB. Free memory was 39.8MB in the beginning and 37.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.37ms. Allocated memory is still 77.6MB. Free memory was 36.9MB in the beginning and 34.9MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 621.17ms. Allocated memory is still 77.6MB. Free memory was 34.9MB in the beginning and 33.6MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2888.50ms. Allocated memory was 77.6MB in the beginning and 163.6MB in the end (delta: 86.0MB). Free memory was 32.9MB in the beginning and 110.7MB in the end (delta: -77.9MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Witness Printer took 103.21ms. Allocated memory is still 163.6MB. Free memory was 110.7MB in the beginning and 106.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 2 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 20 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 158 NumberOfNonLiveVariables, 217 ConjunctsInSsa, 143 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((1bv8 == mask_SORT_1 && state_8 == var_4) && state_5 == var_4) && var_4 == state_43) && var_4 == state_25) && var_4 == 0bv8 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:25:44,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41e04ec5-95fa-46ef-aa54-59c4f2bf9796/bin/utaipan-Q6hlc19bkW/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 Writing output log to file Ultimate.log Result: TRUE