./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh --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 0d18bb9a3c0c22532cb965506cd5bf113c39bd275ed24e432db6cb4dc254c263 --- 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-2329fc7 [2022-12-14 14:08:32,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:08:32,313 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:08:32,331 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:08:32,332 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:08:32,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:08:32,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:08:32,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:08:32,337 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:08:32,338 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:08:32,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:08:32,340 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:08:32,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:08:32,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:08:32,342 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:08:32,343 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:08:32,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:08:32,345 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:08:32,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:08:32,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:08:32,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:08:32,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:08:32,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:08:32,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:08:32,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:08:32,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:08:32,357 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:08:32,358 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:08:32,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:08:32,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:08:32,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:08:32,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:08:32,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:08:32,362 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:08:32,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:08:32,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:08:32,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:08:32,364 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:08:32,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:08:32,365 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:08:32,366 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:08:32,367 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 14:08:32,389 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:08:32,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:08:32,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:08:32,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:08:32,390 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:08:32,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:08:32,391 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:08:32,391 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:08:32,391 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:08:32,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 14:08:32,392 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:08:32,392 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:08:32,392 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 14:08:32,392 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 14:08:32,393 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:08:32,393 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 14:08:32,393 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 14:08:32,393 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 14:08:32,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:08:32,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 14:08:32,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:08:32,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:08:32,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:08:32,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:08:32,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:08:32,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:08:32,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:08:32,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:08:32,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:08:32,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:08:32,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:08:32,396 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 14:08:32,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:08:32,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:08:32,397 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 14:08:32,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 14:08:32,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:08:32,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:08:32,398 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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d18bb9a3c0c22532cb965506cd5bf113c39bd275ed24e432db6cb4dc254c263 [2022-12-14 14:08:32,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:08:32,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:08:32,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:08:32,604 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:08:32,605 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:08:32,605 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c [2022-12-14 14:08:35,136 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:08:35,372 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:08:35,372 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c [2022-12-14 14:08:35,383 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data/01b66749f/b7165e5aa55e4e908a11b60c3a3d9b4d/FLAG31d5fcb20 [2022-12-14 14:08:35,713 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data/01b66749f/b7165e5aa55e4e908a11b60c3a3d9b4d [2022-12-14 14:08:35,716 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:08:35,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:08:35,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:08:35,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:08:35,726 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:08:35,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:08:35" (1/1) ... [2022-12-14 14:08:35,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e2f3e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:35, skipping insertion in model container [2022-12-14 14:08:35,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:08:35" (1/1) ... [2022-12-14 14:08:35,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:08:35,781 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:08:35,896 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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c[1107,1120] [2022-12-14 14:08:36,091 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:08:36,095 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:08:36,103 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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c[1107,1120] [2022-12-14 14:08:36,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:08:36,248 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:08:36,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36 WrapperNode [2022-12-14 14:08:36,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:08:36,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:08:36,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:08:36,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:08:36,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,381 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-12-14 14:08:36,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:08:36,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:08:36,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:08:36,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:08:36,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,408 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,456 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:08:36,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:08:36,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:08:36,482 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:08:36,483 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (1/1) ... [2022-12-14 14:08:36,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:08:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:08:36,509 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:08:36,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:08:36,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:08:36,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:08:36,777 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:08:36,779 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:09:24,612 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:09:24,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:09:24,640 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:09:24,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:24 BoogieIcfgContainer [2022-12-14 14:09:24,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:09:24,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:09:24,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:09:24,648 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:09:24,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:08:35" (1/3) ... [2022-12-14 14:09:24,649 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60819870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:09:24, skipping insertion in model container [2022-12-14 14:09:24,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:08:36" (2/3) ... [2022-12-14 14:09:24,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60819870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:09:24, skipping insertion in model container [2022-12-14 14:09:24,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:24" (3/3) ... [2022-12-14 14:09:24,651 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal22.c [2022-12-14 14:09:24,670 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:09:24,670 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:09:24,716 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:09:24,722 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;@3ca9d390, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:09:24,722 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:09:24,728 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) [2022-12-14 14:09:24,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 14:09:24,734 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:24,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 14:09:24,735 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:09:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:24,740 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 14:09:24,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 14:09:24,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939465352] [2022-12-14 14:09:24,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:24,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 14:09:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:09:26,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 14:09:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 14:09:26,955 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 14:09:26,956 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 14:09:26,957 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 14:09:26,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 14:09:26,962 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 14:09:26,965 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 14:09:26,984 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 14:09:26,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 02:09:26 BoogieIcfgContainer [2022-12-14 14:09:26,994 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 14:09:26,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 14:09:26,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 14:09:26,994 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 14:09:26,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:24" (3/4) ... [2022-12-14 14:09:26,997 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 14:09:26,997 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 14:09:26,998 INFO L158 Benchmark]: Toolchain (without parser) took 51279.78ms. Allocated memory was 142.6MB in the beginning and 755.0MB in the end (delta: 612.4MB). Free memory was 106.0MB in the beginning and 576.2MB in the end (delta: -470.3MB). Peak memory consumption was 144.2MB. Max. memory is 16.1GB. [2022-12-14 14:09:26,998 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 142.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:09:26,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.01ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 106.0MB in the beginning and 126.8MB in the end (delta: -20.8MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-12-14 14:09:26,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 131.22ms. Allocated memory is still 174.1MB. Free memory was 126.8MB in the beginning and 110.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 14:09:26,999 INFO L158 Benchmark]: Boogie Preprocessor took 99.70ms. Allocated memory is still 174.1MB. Free memory was 110.0MB in the beginning and 101.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-12-14 14:09:27,000 INFO L158 Benchmark]: RCFGBuilder took 48161.28ms. Allocated memory was 174.1MB in the beginning and 755.0MB in the end (delta: 580.9MB). Free memory was 101.6MB in the beginning and 443.4MB in the end (delta: -341.8MB). Peak memory consumption was 442.6MB. Max. memory is 16.1GB. [2022-12-14 14:09:27,000 INFO L158 Benchmark]: TraceAbstraction took 2348.35ms. Allocated memory is still 755.0MB. Free memory was 442.4MB in the beginning and 576.2MB in the end (delta: -133.8MB). Peak memory consumption was 194.6MB. Max. memory is 16.1GB. [2022-12-14 14:09:27,000 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 755.0MB. Free memory is still 576.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 14:09:27,002 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 142.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.01ms. Allocated memory was 142.6MB in the beginning and 174.1MB in the end (delta: 31.5MB). Free memory was 106.0MB in the beginning and 126.8MB in the end (delta: -20.8MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 131.22ms. Allocated memory is still 174.1MB. Free memory was 126.8MB in the beginning and 110.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.70ms. Allocated memory is still 174.1MB. Free memory was 110.0MB in the beginning and 101.6MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 48161.28ms. Allocated memory was 174.1MB in the beginning and 755.0MB in the end (delta: 580.9MB). Free memory was 101.6MB in the beginning and 443.4MB in the end (delta: -341.8MB). Peak memory consumption was 442.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2348.35ms. Allocated memory is still 755.0MB. Free memory was 442.4MB in the beginning and 576.2MB in the end (delta: -133.8MB). Peak memory consumption was 194.6MB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 755.0MB. Free memory is still 576.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 200, overapproximation of bitwiseAnd at line 164, overapproximation of bitwiseComplement at line 197, overapproximation of bitwiseXor at line 203. 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_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 2); [L29] const SORT_6 msb_SORT_6 = (SORT_6)1 << (2 - 1); [L31] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 3); [L32] const SORT_8 msb_SORT_8 = (SORT_8)1 << (3 - 1); [L34] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 5); [L35] const SORT_14 msb_SORT_14 = (SORT_14)1 << (5 - 1); [L37] const SORT_17 mask_SORT_17 = (SORT_17)-1 >> (sizeof(SORT_17) * 8 - 8); [L38] const SORT_17 msb_SORT_17 = (SORT_17)1 << (8 - 1); [L40] const SORT_88 mask_SORT_88 = (SORT_88)-1 >> (sizeof(SORT_88) * 8 - 4); [L41] const SORT_88 msb_SORT_88 = (SORT_88)1 << (4 - 1); [L43] const SORT_186 mask_SORT_186 = (SORT_186)-1 >> (sizeof(SORT_186) * 8 - 6); [L44] const SORT_186 msb_SORT_186 = (SORT_186)1 << (6 - 1); [L46] const SORT_188 mask_SORT_188 = (SORT_188)-1 >> (sizeof(SORT_188) * 8 - 7); [L47] const SORT_188 msb_SORT_188 = (SORT_188)1 << (7 - 1); [L49] const SORT_191 mask_SORT_191 = (SORT_191)-1 >> (sizeof(SORT_191) * 8 - 9); [L50] const SORT_191 msb_SORT_191 = (SORT_191)1 << (9 - 1); [L52] const SORT_193 mask_SORT_193 = (SORT_193)-1 >> (sizeof(SORT_193) * 8 - 10); [L53] const SORT_193 msb_SORT_193 = (SORT_193)1 << (10 - 1); [L55] const SORT_195 mask_SORT_195 = (SORT_195)-1 >> (sizeof(SORT_195) * 8 - 11); [L56] const SORT_195 msb_SORT_195 = (SORT_195)1 << (11 - 1); [L58] const SORT_197 mask_SORT_197 = (SORT_197)-1 >> (sizeof(SORT_197) * 8 - 12); [L59] const SORT_197 msb_SORT_197 = (SORT_197)1 << (12 - 1); [L61] const SORT_1 var_29 = 0; [L62] const SORT_6 var_38 = 0; [L63] const SORT_6 var_46 = 3; [L64] const SORT_6 var_48 = 2; [L65] const SORT_6 var_50 = 1; [L66] const SORT_1 var_54 = 1; [L67] const SORT_8 var_55 = 1; [L68] const SORT_8 var_58 = 3; [L69] const SORT_8 var_61 = 2; [L70] const SORT_8 var_65 = 5; [L71] const SORT_8 var_68 = 7; [L72] const SORT_8 var_71 = 6; [L73] const SORT_8 var_75 = 4; [L74] const SORT_17 var_116 = 0; [L75] const SORT_14 var_137 = 11; [L76] const SORT_14 var_139 = 10; [L77] const SORT_14 var_141 = 2; [L78] const SORT_14 var_143 = 9; [L79] const SORT_14 var_158 = 21; [L80] const SORT_14 var_160 = 20; [L81] const SORT_14 var_162 = 19; [L82] const SORT_14 var_164 = 18; [L83] const SORT_14 var_166 = 17; [L84] const SORT_14 var_168 = 16; [L85] const SORT_14 var_170 = 15; [L86] const SORT_14 var_172 = 14; [L87] const SORT_14 var_174 = 8; [L88] const SORT_14 var_176 = 6; [L89] const SORT_14 var_178 = 3; [L90] const SORT_14 var_180 = 5; [L91] const SORT_14 var_200 = 4; [L92] const SORT_14 var_202 = 1; [L93] const SORT_14 var_212 = 7; [L94] const SORT_14 var_230 = 13; [L95] const SORT_14 var_238 = 12; [L96] const SORT_14 var_259 = 23; [L97] const SORT_14 var_262 = 22; [L98] const SORT_14 var_271 = 25; [L99] const SORT_14 var_274 = 27; [L100] const SORT_14 var_277 = 26; [L101] const SORT_14 var_281 = 29; [L102] const SORT_14 var_284 = 31; [L103] const SORT_14 var_287 = 30; [L104] const SORT_14 var_291 = 28; [L105] const SORT_14 var_297 = 24; [L106] const SORT_186 var_320 = 0; [L107] const SORT_17 var_396 = 3; [L109] SORT_1 input_2; [L110] SORT_1 input_3; [L111] SORT_1 input_4; [L112] SORT_1 input_5; [L113] SORT_6 input_7; [L114] SORT_8 input_9; [L115] SORT_6 input_10; [L116] SORT_1 input_11; [L117] SORT_1 input_12; [L118] SORT_1 input_13; [L119] SORT_14 input_15; [L120] SORT_6 input_16; [L121] SORT_17 input_18; [L122] SORT_6 input_19; [L123] SORT_1 input_20; [L124] SORT_1 input_21; [L125] SORT_6 input_22; [L126] SORT_6 input_23; [L127] SORT_17 input_24; [L128] SORT_17 input_25; [L129] SORT_1 input_26; [L130] SORT_1 input_27; [L131] SORT_6 input_28; [L133] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_6 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L137] SORT_1 state_101 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_17 state_117 = __VERIFIER_nondet_uchar() & mask_SORT_17; [L139] SORT_6 state_344 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L140] SORT_17 state_442 = __VERIFIER_nondet_uchar() & mask_SORT_17; [L141] SORT_6 state_448 = __VERIFIER_nondet_uchar() & mask_SORT_6; [L143] SORT_1 init_31_arg_1 = var_29; [L144] state_30 = init_31_arg_1 [L145] SORT_1 init_34_arg_1 = var_29; [L146] state_33 = init_34_arg_1 [L147] SORT_1 init_36_arg_1 = var_29; [L148] state_35 = init_36_arg_1 [L149] SORT_6 init_40_arg_1 = var_38; [L150] state_39 = init_40_arg_1 [L151] SORT_1 init_102_arg_1 = var_29; [L152] state_101 = init_102_arg_1 [L153] SORT_17 init_118_arg_1 = var_116; [L154] state_117 = init_118_arg_1 [L155] SORT_6 init_345_arg_1 = var_38; [L156] state_344 = init_345_arg_1 [L157] SORT_17 init_443_arg_1 = var_116; [L158] state_442 = init_443_arg_1 [L159] SORT_6 init_449_arg_1 = var_38; [L160] state_448 = init_449_arg_1 VAL [init_102_arg_1=0, init_118_arg_1=0, init_31_arg_1=0, init_345_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_40_arg_1=0, init_443_arg_1=0, init_449_arg_1=0, mask_SORT_1=1, mask_SORT_14=31, mask_SORT_17=255, mask_SORT_186=63, mask_SORT_188=127, mask_SORT_191=511, mask_SORT_193=1023, mask_SORT_195=2047, mask_SORT_197=4095, mask_SORT_6=3, mask_SORT_8=7, mask_SORT_88=15, msb_SORT_1=1, msb_SORT_14=16, msb_SORT_17=128, msb_SORT_186=32, msb_SORT_188=64, msb_SORT_191=256, msb_SORT_193=512, msb_SORT_195=1024, msb_SORT_197=2048, msb_SORT_6=2, msb_SORT_8=4, msb_SORT_88=8, state_101=0, state_117=0, state_30=0, state_33=0, state_344=0, state_35=0, state_39=0, state_442=0, state_448=0, var_116=0, var_137=11, var_139=10, var_141=2, var_143=9, var_158=21, var_160=20, var_162=19, var_164=18, var_166=17, var_168=16, var_170=15, var_172=14, var_174=8, var_176=6, var_178=3, var_180=5, var_200=4, var_202=1, var_212=7, var_230=13, var_238=12, var_259=23, var_262=22, var_271=25, var_274=27, var_277=26, var_281=29, var_284=31, var_287=30, var_29=0, var_291=28, var_297=24, var_320=0, var_38=0, var_396=3, var_46=3, var_48=2, var_50=1, var_54=1, var_55=1, var_58=3, var_61=2, var_65=5, var_68=7, var_71=6, var_75=4] [L163] input_2 = __VERIFIER_nondet_uchar() [L164] input_2 = input_2 & mask_SORT_1 [L165] input_3 = __VERIFIER_nondet_uchar() [L166] input_3 = input_3 & mask_SORT_1 [L167] input_4 = __VERIFIER_nondet_uchar() [L168] input_5 = __VERIFIER_nondet_uchar() [L169] input_5 = input_5 & mask_SORT_1 [L170] input_7 = __VERIFIER_nondet_uchar() [L171] input_7 = input_7 & mask_SORT_6 [L172] input_9 = __VERIFIER_nondet_uchar() [L173] input_9 = input_9 & mask_SORT_8 [L174] input_10 = __VERIFIER_nondet_uchar() [L175] input_10 = input_10 & mask_SORT_6 [L176] input_11 = __VERIFIER_nondet_uchar() [L177] input_11 = input_11 & mask_SORT_1 [L178] input_12 = __VERIFIER_nondet_uchar() [L179] input_13 = __VERIFIER_nondet_uchar() [L180] input_15 = __VERIFIER_nondet_uchar() [L181] input_15 = input_15 & mask_SORT_14 [L182] input_16 = __VERIFIER_nondet_uchar() [L183] input_18 = __VERIFIER_nondet_uchar() [L184] input_19 = __VERIFIER_nondet_uchar() [L185] input_20 = __VERIFIER_nondet_uchar() [L186] input_21 = __VERIFIER_nondet_uchar() [L187] input_22 = __VERIFIER_nondet_uchar() [L188] input_23 = __VERIFIER_nondet_uchar() [L189] input_24 = __VERIFIER_nondet_uchar() [L190] input_25 = __VERIFIER_nondet_uchar() [L191] input_26 = __VERIFIER_nondet_uchar() [L192] input_27 = __VERIFIER_nondet_uchar() [L193] input_28 = __VERIFIER_nondet_uchar() [L196] SORT_1 var_32_arg_0 = state_30; [L197] SORT_1 var_32 = ~var_32_arg_0; [L198] SORT_1 var_92_arg_0 = input_12; [L199] SORT_1 var_92_arg_1 = input_11; [L200] SORT_6 var_92 = ((SORT_6)var_92_arg_0 << 1) | var_92_arg_1; [L201] var_92 = var_92 & mask_SORT_6 [L202] SORT_6 var_93_arg_0 = var_92; [L203] var_93_arg_0 ^= var_93_arg_0 >> 4 [L204] var_93_arg_0 ^= var_93_arg_0 >> 2 [L205] var_93_arg_0 ^= var_93_arg_0 >> 1 [L206] SORT_1 var_93 = var_93_arg_0; [L207] SORT_8 var_85_arg_0 = input_9; [L208] SORT_8 var_85_arg_1 = var_61; [L209] SORT_1 var_85 = var_85_arg_0 == var_85_arg_1; [L210] SORT_8 var_84_arg_0 = input_9; [L211] SORT_8 var_84_arg_1 = var_55; [L212] SORT_1 var_84 = var_84_arg_0 == var_84_arg_1; [L213] SORT_8 var_83_arg_0 = input_9; [L214] SORT_8 var_83_arg_1 = var_75; [L215] SORT_1 var_83 = var_83_arg_0 == var_83_arg_1; [L216] SORT_8 var_82_arg_0 = input_9; [L217] SORT_8 var_82_arg_1 = var_65; [L218] SORT_1 var_82 = var_82_arg_0 == var_82_arg_1; [L219] SORT_1 var_86_arg_0 = var_83; [L220] SORT_1 var_86_arg_1 = var_82; [L221] SORT_6 var_86 = ((SORT_6)var_86_arg_0 << 1) | var_86_arg_1; [L222] var_86 = var_86 & mask_SORT_6 [L223] SORT_1 var_87_arg_0 = var_84; [L224] SORT_6 var_87_arg_1 = var_86; [L225] SORT_8 var_87 = ((SORT_8)var_87_arg_0 << 2) | var_87_arg_1; [L226] var_87 = var_87 & mask_SORT_8 [L227] SORT_1 var_89_arg_0 = var_85; [L228] SORT_8 var_89_arg_1 = var_87; [L229] SORT_88 var_89 = ((SORT_88)var_89_arg_0 << 3) | var_89_arg_1; [L230] var_89 = var_89 & mask_SORT_88 [L231] SORT_88 var_90_arg_0 = var_89; [L232] SORT_1 var_90 = var_90_arg_0 != 0; [L233] SORT_6 var_51_arg_0 = input_10; [L234] SORT_6 var_51_arg_1 = var_50; [L235] SORT_1 var_51 = var_51_arg_0 == var_51_arg_1; [L236] SORT_8 var_72_arg_0 = input_9; [L237] SORT_8 var_72_arg_1 = var_71; [L238] SORT_1 var_72 = var_72_arg_0 == var_72_arg_1; [L239] SORT_8 var_69_arg_0 = input_9; [L240] SORT_8 var_69_arg_1 = var_68; [L241] SORT_1 var_69 = var_69_arg_0 == var_69_arg_1; [L242] SORT_1 var_73_arg_0 = var_72; [L243] SORT_1 var_73_arg_1 = var_69; [L244] SORT_1 var_73 = var_73_arg_0 | var_73_arg_1; [L245] var_73 = var_73 & mask_SORT_1 [L246] SORT_8 var_66_arg_0 = input_9; [L247] SORT_8 var_66_arg_1 = var_65; [L248] SORT_1 var_66 = var_66_arg_0 == var_66_arg_1; [L249] SORT_8 var_76_arg_0 = input_9; [L250] SORT_8 var_76_arg_1 = var_75; [L251] SORT_1 var_76 = var_76_arg_0 == var_76_arg_1; [L252] SORT_1 var_77_arg_0 = var_66; [L253] SORT_1 var_77_arg_1 = var_76; [L254] SORT_6 var_77 = ((SORT_6)var_77_arg_0 << 1) | var_77_arg_1; [L255] var_77 = var_77 & mask_SORT_6 [L256] SORT_1 var_78_arg_0 = var_73; [L257] SORT_6 var_78_arg_1 = var_77; [L258] SORT_8 var_78 = ((SORT_8)var_78_arg_0 << 2) | var_78_arg_1; [L259] var_78 = var_78 & mask_SORT_8 [L260] SORT_8 var_79_arg_0 = var_78; [L261] SORT_1 var_79 = var_79_arg_0 != 0; [L262] SORT_1 var_70_arg_0 = var_69; [L263] SORT_1 var_70_arg_1 = var_54; [L264] SORT_1 var_70_arg_2 = var_54; [L265] SORT_1 var_70 = var_70_arg_0 ? var_70_arg_1 : var_70_arg_2; [L266] SORT_1 var_67_arg_0 = var_66; [L267] SORT_1 var_67_arg_1 = var_29; [L268] SORT_1 var_67_arg_2 = var_29; [L269] SORT_1 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L270] SORT_1 var_74_arg_0 = var_73; [L271] SORT_1 var_74_arg_1 = var_70; [L272] SORT_1 var_74_arg_2 = var_67; [L273] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L274] SORT_8 var_62_arg_0 = input_9; [L275] SORT_8 var_62_arg_1 = var_61; [L276] SORT_1 var_62 = var_62_arg_0 == var_62_arg_1; [L277] SORT_8 var_59_arg_0 = input_9; [L278] SORT_8 var_59_arg_1 = var_58; [L279] SORT_1 var_59 = var_59_arg_0 == var_59_arg_1; [L280] SORT_1 var_63_arg_0 = var_62; [L281] SORT_1 var_63_arg_1 = var_59; [L282] SORT_1 var_63 = var_63_arg_0 | var_63_arg_1; [L283] var_63 = var_63 & mask_SORT_1 [L284] SORT_1 var_60_arg_0 = var_59; [L285] SORT_1 var_60_arg_1 = var_54; [L286] SORT_1 var_60_arg_2 = var_29; [L287] SORT_1 var_60 = var_60_arg_0 ? var_60_arg_1 : var_60_arg_2; [L288] SORT_8 var_56_arg_0 = input_9; [L289] SORT_8 var_56_arg_1 = var_55; [L290] SORT_1 var_56 = var_56_arg_0 == var_56_arg_1; [L291] SORT_1 var_57_arg_0 = var_56; [L292] SORT_1 var_57_arg_1 = var_29; [L293] SORT_1 var_57_arg_2 = var_54; [L294] SORT_1 var_57 = var_57_arg_0 ? var_57_arg_1 : var_57_arg_2; [L295] SORT_1 var_64_arg_0 = var_63; [L296] SORT_1 var_64_arg_1 = var_60; [L297] SORT_1 var_64_arg_2 = var_57; [L298] SORT_1 var_64 = var_64_arg_0 ? var_64_arg_1 : var_64_arg_2; [L299] SORT_1 var_80_arg_0 = var_79; [L300] SORT_1 var_80_arg_1 = var_74; [L301] SORT_1 var_80_arg_2 = var_64; [L302] SORT_1 var_80 = var_80_arg_0 ? var_80_arg_1 : var_80_arg_2; [L303] var_80 = var_80 & mask_SORT_1 [L304] SORT_6 var_49_arg_0 = input_10; [L305] SORT_6 var_49_arg_1 = var_48; [L306] SORT_1 var_49 = var_49_arg_0 == var_49_arg_1; [L307] SORT_1 var_52_arg_0 = var_51; [L308] SORT_1 var_52_arg_1 = var_49; [L309] SORT_6 var_52 = ((SORT_6)var_52_arg_0 << 1) | var_52_arg_1; [L310] var_52 = var_52 & mask_SORT_6 [L311] SORT_6 var_53_arg_0 = var_52; [L312] SORT_1 var_53 = var_53_arg_0 != 0; [L313] SORT_1 var_81_arg_0 = var_80; [L314] SORT_1 var_81_arg_1 = var_53; [L315] SORT_1 var_81_arg_2 = var_29; [L316] SORT_1 var_81 = var_81_arg_0 ? var_81_arg_1 : var_81_arg_2; [L317] SORT_1 var_91_arg_0 = var_90; [L318] SORT_1 var_91_arg_1 = var_51; [L319] SORT_1 var_91_arg_2 = var_81; [L320] SORT_1 var_91 = var_91_arg_0 ? var_91_arg_1 : var_91_arg_2; [L321] SORT_6 var_47_arg_0 = input_7; [L322] SORT_6 var_47_arg_1 = var_46; [L323] SORT_1 var_47 = var_47_arg_0 == var_47_arg_1; [L324] SORT_1 var_94_arg_0 = var_91; [L325] SORT_1 var_94_arg_1 = var_47; [L326] SORT_6 var_94 = ((SORT_6)var_94_arg_0 << 1) | var_94_arg_1; [L327] var_94 = var_94 & mask_SORT_6 [L328] SORT_1 var_95_arg_0 = var_93; [L329] SORT_6 var_95_arg_1 = var_94; [L330] SORT_8 var_95 = ((SORT_8)var_95_arg_0 << 2) | var_95_arg_1; [L331] var_95 = var_95 & mask_SORT_8 [L332] SORT_8 var_96_arg_0 = var_95; [L333] SORT_1 var_96 = var_96_arg_0 != 0; [L334] SORT_1 var_97_arg_0 = input_13; [L335] SORT_1 var_97_arg_1 = var_96; [L336] SORT_6 var_97 = ((SORT_6)var_97_arg_0 << 1) | var_97_arg_1; [L337] var_97 = var_97 & mask_SORT_6 [L338] SORT_6 var_98_arg_0 = var_97; [L339] SORT_1 var_98 = var_98_arg_0 == mask_SORT_6; [L340] SORT_1 var_41_arg_0 = state_35; [L341] SORT_6 var_41_arg_1 = state_39; [L342] SORT_6 var_41_arg_2 = input_19; [L343] SORT_6 var_41 = var_41_arg_0 ? var_41_arg_1 : var_41_arg_2; [L344] SORT_6 var_44_arg_0 = var_41; [L345] SORT_1 var_44 = var_44_arg_0 >> 0; [L346] var_44 = var_44 & mask_SORT_1 [L347] SORT_6 var_42_arg_0 = var_41; [L348] SORT_1 var_42 = var_42_arg_0 >> 1; [L349] var_42 = var_42 & mask_SORT_1 [L350] SORT_1 var_37_arg_0 = state_35; [L351] SORT_1 var_37_arg_1 = state_33; [L352] SORT_1 var_37_arg_2 = input_20; [L353] SORT_1 var_37 = var_37_arg_0 ? var_37_arg_1 : var_37_arg_2; [L354] SORT_1 var_43_arg_0 = var_42; [L355] SORT_1 var_43_arg_1 = var_37; [L356] SORT_1 var_43_arg_2 = var_29; [L357] SORT_1 var_43 = var_43_arg_0 ? var_43_arg_1 : var_43_arg_2; [L358] SORT_1 var_45_arg_0 = var_44; [L359] SORT_1 var_45_arg_1 = var_29; [L360] SORT_1 var_45_arg_2 = var_43; [L361] SORT_1 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L362] var_45 = var_45 & mask_SORT_1 [L363] SORT_1 var_99_arg_0 = var_98; [L364] SORT_1 var_99_arg_1 = var_45; [L365] SORT_6 var_99 = ((SORT_6)var_99_arg_0 << 1) | var_99_arg_1; [L366] var_99 = var_99 & mask_SORT_6 [L367] SORT_6 var_100_arg_0 = var_99; [L368] SORT_1 var_100 = var_100_arg_0 != 0; [L369] SORT_1 var_103_arg_0 = state_35; [L370] SORT_1 var_103_arg_1 = state_101; [L371] SORT_1 var_103_arg_2 = input_20; [L372] SORT_1 var_103 = var_103_arg_0 ? var_103_arg_1 : var_103_arg_2; [L373] SORT_1 var_104_arg_0 = var_42; [L374] SORT_1 var_104_arg_1 = var_103; [L375] SORT_1 var_104_arg_2 = var_29; [L376] SORT_1 var_104 = var_104_arg_0 ? var_104_arg_1 : var_104_arg_2; [L377] SORT_1 var_105_arg_0 = var_44; [L378] SORT_1 var_105_arg_1 = var_29; [L379] SORT_1 var_105_arg_2 = var_104; [L380] SORT_1 var_105 = var_105_arg_0 ? var_105_arg_1 : var_105_arg_2; [L381] var_105 = var_105 & mask_SORT_1 [L382] SORT_1 var_106_arg_0 = var_98; [L383] SORT_1 var_106_arg_1 = var_105; [L384] SORT_6 var_106 = ((SORT_6)var_106_arg_0 << 1) | var_106_arg_1; [L385] var_106 = var_106 & mask_SORT_6 [L386] SORT_6 var_107_arg_0 = var_106; [L387] SORT_1 var_107 = var_107_arg_0 != 0; [L388] SORT_1 var_108_arg_0 = var_100; [L389] SORT_1 var_108_arg_1 = var_107; [L390] SORT_1 var_108 = var_108_arg_0 == var_108_arg_1; [L391] SORT_1 var_109_arg_0 = var_32; [L392] SORT_1 var_109_arg_1 = var_108; [L393] SORT_1 var_109 = var_109_arg_0 | var_109_arg_1; [L394] SORT_1 var_112_arg_0 = var_109; [L395] SORT_1 var_112 = ~var_112_arg_0; [L396] SORT_1 var_113_arg_0 = var_54; [L397] SORT_1 var_113_arg_1 = var_112; [L398] SORT_1 var_113 = var_113_arg_0 & var_113_arg_1; [L399] var_113 = var_113 & mask_SORT_1 [L400] SORT_1 bad_114_arg_0 = var_113; [L401] CALL __VERIFIER_assert(!(bad_114_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s 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 [2022-12-14 14:09:27,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh --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 0d18bb9a3c0c22532cb965506cd5bf113c39bd275ed24e432db6cb4dc254c263 --- 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-2329fc7 [2022-12-14 14:09:28,544 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 14:09:28,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 14:09:28,565 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 14:09:28,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 14:09:28,566 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 14:09:28,567 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 14:09:28,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 14:09:28,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 14:09:28,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 14:09:28,572 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 14:09:28,573 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 14:09:28,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 14:09:28,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 14:09:28,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 14:09:28,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 14:09:28,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 14:09:28,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 14:09:28,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 14:09:28,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 14:09:28,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 14:09:28,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 14:09:28,585 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 14:09:28,586 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 14:09:28,589 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 14:09:28,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 14:09:28,590 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 14:09:28,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 14:09:28,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 14:09:28,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 14:09:28,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 14:09:28,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 14:09:28,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 14:09:28,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 14:09:28,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 14:09:28,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 14:09:28,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 14:09:28,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 14:09:28,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 14:09:28,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 14:09:28,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 14:09:28,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 14:09:28,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 14:09:28,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 14:09:28,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 14:09:28,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 14:09:28,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 14:09:28,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 14:09:28,622 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 14:09:28,622 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 14:09:28,622 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 14:09:28,622 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 14:09:28,622 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 14:09:28,622 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 14:09:28,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 14:09:28,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 14:09:28,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 14:09:28,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 14:09:28,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 14:09:28,624 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 14:09:28,624 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 14:09:28,624 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 14:09:28,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 14:09:28,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 14:09:28,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 14:09:28,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 14:09:28,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 14:09:28,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 14:09:28,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:09:28,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 14:09:28,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 14:09:28,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 14:09:28,626 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 14:09:28,626 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 14:09:28,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 14:09:28,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 14:09:28,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 14:09:28,627 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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0d18bb9a3c0c22532cb965506cd5bf113c39bd275ed24e432db6cb4dc254c263 [2022-12-14 14:09:28,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 14:09:28,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 14:09:28,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 14:09:28,893 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 14:09:28,893 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 14:09:28,894 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c [2022-12-14 14:09:31,468 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 14:09:31,673 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 14:09:31,673 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c [2022-12-14 14:09:31,685 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data/b42c46232/bbb3a6d3ebf54466b347c3832c18edfd/FLAG878d916f0 [2022-12-14 14:09:31,696 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/data/b42c46232/bbb3a6d3ebf54466b347c3832c18edfd [2022-12-14 14:09:31,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 14:09:31,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 14:09:31,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 14:09:31,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 14:09:31,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 14:09:31,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:09:31" (1/1) ... [2022-12-14 14:09:31,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@375733d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:31, skipping insertion in model container [2022-12-14 14:09:31,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 02:09:31" (1/1) ... [2022-12-14 14:09:31,708 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 14:09:31,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 14:09:31,855 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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c[1107,1120] [2022-12-14 14:09:32,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:09:32,120 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 14:09:32,131 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_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal22.c[1107,1120] [2022-12-14 14:09:32,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 14:09:32,243 INFO L208 MainTranslator]: Completed translation [2022-12-14 14:09:32,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32 WrapperNode [2022-12-14 14:09:32,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 14:09:32,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 14:09:32,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 14:09:32,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 14:09:32,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,345 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1549 [2022-12-14 14:09:32,345 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 14:09:32,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 14:09:32,346 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 14:09:32,346 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 14:09:32,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,405 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,423 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 14:09:32,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 14:09:32,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 14:09:32,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 14:09:32,425 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (1/1) ... [2022-12-14 14:09:32,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 14:09:32,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:09:32,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 14:09:32,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 14:09:32,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 14:09:32,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 14:09:32,732 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 14:09:32,733 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 14:09:34,387 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 14:09:34,393 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 14:09:34,393 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 14:09:34,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:34 BoogieIcfgContainer [2022-12-14 14:09:34,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 14:09:34,396 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 14:09:34,396 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 14:09:34,398 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 14:09:34,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 02:09:31" (1/3) ... [2022-12-14 14:09:34,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d4a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:09:34, skipping insertion in model container [2022-12-14 14:09:34,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 02:09:32" (2/3) ... [2022-12-14 14:09:34,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d4a6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 02:09:34, skipping insertion in model container [2022-12-14 14:09:34,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 02:09:34" (3/3) ... [2022-12-14 14:09:34,400 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal22.c [2022-12-14 14:09:34,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 14:09:34,414 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 14:09:34,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 14:09:34,453 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;@7710dddf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 14:09:34,453 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 14:09:34,456 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) [2022-12-14 14:09:34,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 14:09:34,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:34,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 14:09:34,462 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:09:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:34,466 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 14:09:34,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:09:34,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219490452] [2022-12-14 14:09:34,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:34,476 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 [2022-12-14 14:09:34,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:09:34,478 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:09:34,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:09:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:34,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 14:09:34,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:09:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:34,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 14:09:34,850 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:09:34,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219490452] [2022-12-14 14:09:34,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219490452] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 14:09:34,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 14:09:34,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 14:09:34,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39284192] [2022-12-14 14:09:34,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 14:09:34,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 14:09:34,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:09:34,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 14:09:34,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 14:09:34,884 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) [2022-12-14 14:09:35,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:35,161 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 14:09:35,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 14:09:35,163 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 [2022-12-14 14:09:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:35,168 INFO L225 Difference]: With dead ends: 20 [2022-12-14 14:09:35,168 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 14:09:35,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 14:09:35,172 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:35,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 14:09:35,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 14:09:35,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 14:09:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 14:09:35,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 14:09:35,194 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 14:09:35,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:35,194 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 14:09:35,194 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) [2022-12-14 14:09:35,194 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 14:09:35,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 14:09:35,195 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:35,195 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 14:09:35,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:09:35,395 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:09:35,397 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:09:35,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:35,399 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 14:09:35,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:09:35,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [787557234] [2022-12-14 14:09:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:35,407 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 [2022-12-14 14:09:35,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:09:35,411 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:09:35,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 14:09:36,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:36,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 59 conjunts are in the unsatisfiable core [2022-12-14 14:09:36,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:09:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:36,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:09:38,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:38,466 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 14:09:38,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [787557234] [2022-12-14 14:09:38,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [787557234] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:09:38,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2105909693] [2022-12-14 14:09:38,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:38,467 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 14:09:38,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 14:09:38,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 14:09:38,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 14:09:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:39,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 65 conjunts are in the unsatisfiable core [2022-12-14 14:09:39,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:09:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:40,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:09:41,218 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:41,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2105909693] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:09:41,219 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305928983] [2022-12-14 14:09:41,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 14:09:41,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 14:09:41,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 14:09:41,220 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 14:09:41,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 14:09:41,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 14:09:41,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 66 conjunts are in the unsatisfiable core [2022-12-14 14:09:41,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 14:09:41,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:41,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 14:09:42,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 14:09:42,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305928983] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 14:09:42,991 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 14:09:42,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 11 [2022-12-14 14:09:42,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31672205] [2022-12-14 14:09:42,992 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 14:09:42,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-12-14 14:09:42,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 14:09:42,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-12-14 14:09:42,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-12-14 14:09:42,993 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2022-12-14 14:09:43,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 14:09:43,539 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 14:09:43,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 14:09:43,540 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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 8 [2022-12-14 14:09:43,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 14:09:43,540 INFO L225 Difference]: With dead ends: 16 [2022-12-14 14:09:43,540 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 14:09:43,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 29 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-12-14 14:09:43,542 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 14:09:43,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 24 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 14:09:43,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 14:09:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 14:09:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2022-12-14 14:09:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 14:09:43,545 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 14:09:43,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 14:09:43,546 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 14:09:43,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.0) internal successors, (22), 11 states have internal predecessors, (22), 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) [2022-12-14 14:09:43,546 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 14:09:43,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 14:09:43,546 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 14:09:43,546 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 14:09:43,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 14:09:43,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-12-14 14:09:43,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-14 14:09:44,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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 [2022-12-14 14:09:44,150 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 14:09:44,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 14:09:44,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 14:09:44,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 14:09:44,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192767471] [2022-12-14 14:09:44,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 14:09:44,158 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 [2022-12-14 14:09:44,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 14:09:44,160 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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) [2022-12-14 14:09:44,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0bdf6c9-305b-49c9-a570-be2f0526a1d3/bin/utaipan-gh47qXpMRh/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 (6)] Waiting until timeout for monitored process [2022-12-14 14:09:44,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 14:09:44,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 14:09:44,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 2773 conjuncts, 542 conjunts are in the unsatisfiable core [2022-12-14 14:09:45,011 INFO L286 TraceCheckSpWp]: Computing forward predicates...