./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba --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 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 --- 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-b5237d8 [2022-11-22 01:53:06,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:53:06,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:53:06,378 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:53:06,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:53:06,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:53:06,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:53:06,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:53:06,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:53:06,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:53:06,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:53:06,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:53:06,390 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:53:06,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:53:06,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:53:06,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:53:06,397 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:53:06,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:53:06,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:53:06,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:53:06,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:53:06,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:53:06,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:53:06,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:53:06,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:53:06,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:53:06,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:53:06,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:53:06,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:53:06,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:53:06,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:53:06,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:53:06,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:53:06,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:53:06,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:53:06,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:53:06,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:53:06,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:53:06,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:53:06,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:53:06,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:53:06,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:53:06,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:53:06,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:53:06,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:53:06,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:53:06,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:53:06,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:53:06,462 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:53:06,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:53:06,463 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:53:06,463 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:53:06,463 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:53:06,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:53:06,463 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:53:06,464 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:53:06,464 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:53:06,464 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:53:06,464 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:53:06,465 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:53:06,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:53:06,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:53:06,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:53:06,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:53:06,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:53:06,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:53:06,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:53:06,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:53:06,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:53:06,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:53:06,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:53:06,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:53:06,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:53:06,468 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:53:06,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:53:06,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:53:06,469 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:53:06,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:53:06,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:53:06,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:53:06,470 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_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 [2022-11-22 01:53:06,745 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:53:06,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:53:06,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:53:06,770 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:53:06,771 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:53:06,772 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-22 01:53:09,872 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:53:10,177 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:53:10,178 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-22 01:53:10,185 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data/98bc20cda/121c0fdc71a0409dada4f71bd65170e3/FLAGfcfb91276 [2022-11-22 01:53:10,199 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data/98bc20cda/121c0fdc71a0409dada4f71bd65170e3 [2022-11-22 01:53:10,202 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:53:10,204 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:53:10,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:53:10,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:53:10,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:53:10,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@187e7eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10, skipping insertion in model container [2022-11-22 01:53:10,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:53:10,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:53:10,371 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_71adf93f-9621-4971-a884-735810c20900/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-22 01:53:10,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:53:10,406 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:53:10,417 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_71adf93f-9621-4971-a884-735810c20900/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-22 01:53:10,435 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:53:10,447 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:53:10,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10 WrapperNode [2022-11-22 01:53:10,448 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:53:10,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:53:10,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:53:10,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:53:10,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,460 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,480 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-22 01:53:10,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:53:10,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:53:10,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:53:10,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:53:10,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,502 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,503 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:53:10,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:53:10,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:53:10,507 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:53:10,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (1/1) ... [2022-11-22 01:53:10,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:53:10,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:10,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:53:10,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:53:10,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:53:10,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:53:10,677 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:53:10,680 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:53:10,832 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:53:10,855 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:53:10,855 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:53:10,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:10 BoogieIcfgContainer [2022-11-22 01:53:10,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:53:10,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:53:10,861 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:53:10,864 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:53:10,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:53:10" (1/3) ... [2022-11-22 01:53:10,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5541086c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:10, skipping insertion in model container [2022-11-22 01:53:10,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:10" (2/3) ... [2022-11-22 01:53:10,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5541086c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:10, skipping insertion in model container [2022-11-22 01:53:10,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:10" (3/3) ... [2022-11-22 01:53:10,868 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2022-11-22 01:53:10,888 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:53:10,888 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:53:10,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:53:10,946 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;@4a52af92, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:53:10,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:53:10,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:10,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:53:10,959 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:10,959 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:53:10,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:10,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:10,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-22 01:53:10,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:53:10,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045775298] [2022-11-22 01:53:10,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:10,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:53:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:53:11,123 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:53:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:53:11,253 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:53:11,255 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:53:11,256 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:53:11,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:53:11,264 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:53:11,268 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:53:11,290 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:11,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:53:11 BoogieIcfgContainer [2022-11-22 01:53:11,301 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:53:11,304 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:53:11,305 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:53:11,316 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:53:11,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:10" (3/4) ... [2022-11-22 01:53:11,324 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:53:11,324 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:53:11,327 INFO L158 Benchmark]: Toolchain (without parser) took 1122.75ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 87.5MB in the beginning and 131.4MB in the end (delta: -43.9MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-22 01:53:11,328 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory was 84.2MB in the beginning and 84.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:53:11,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 243.31ms. Allocated memory is still 119.5MB. Free memory was 87.1MB in the beginning and 76.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:53:11,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.52ms. Allocated memory is still 119.5MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:53:11,335 INFO L158 Benchmark]: Boogie Preprocessor took 24.54ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 73.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:53:11,336 INFO L158 Benchmark]: RCFGBuilder took 351.57ms. Allocated memory is still 119.5MB. Free memory was 73.6MB in the beginning and 60.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:53:11,338 INFO L158 Benchmark]: TraceAbstraction took 440.58ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 59.8MB in the beginning and 130.6MB in the end (delta: -70.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2022-11-22 01:53:11,338 INFO L158 Benchmark]: Witness Printer took 20.93ms. Allocated memory is still 161.5MB. Free memory was 130.6MB in the beginning and 131.4MB in the end (delta: -880.8kB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-22 01:53:11,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 119.5MB. Free memory was 84.2MB in the beginning and 84.2MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 243.31ms. Allocated memory is still 119.5MB. Free memory was 87.1MB in the beginning and 76.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.52ms. Allocated memory is still 119.5MB. Free memory was 76.6MB in the beginning and 74.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.54ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 73.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.57ms. Allocated memory is still 119.5MB. Free memory was 73.6MB in the beginning and 60.3MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 440.58ms. Allocated memory was 119.5MB in the beginning and 161.5MB in the end (delta: 41.9MB). Free memory was 59.8MB in the beginning and 130.6MB in the end (delta: -70.8MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. * Witness Printer took 20.93ms. Allocated memory is still 161.5MB. Free memory was 130.6MB in the beginning and 131.4MB in the end (delta: -880.8kB). Peak memory consumption was 6.5MB. 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 bitwiseComplement at line 59, overapproximation of bitwiseAnd at line 62. 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L31] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L32] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_4 var_8 = 6; [L36] const SORT_1 var_14 = 1; [L37] const SORT_19 var_21 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] SORT_4 init_7_arg_1 = var_5; [L46] state_6 = init_7_arg_1 [L47] SORT_4 init_10_arg_1 = var_8; [L48] state_9 = init_10_arg_1 VAL [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_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: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:53:11,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba --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 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 --- 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-b5237d8 [2022-11-22 01:53:13,768 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:53:13,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:53:13,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:53:13,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:53:13,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:53:13,836 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:53:13,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:53:13,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:53:13,848 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:53:13,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:53:13,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:53:13,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:53:13,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:53:13,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:53:13,862 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:53:13,863 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:53:13,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:53:13,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:53:13,870 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:53:13,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:53:13,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:53:13,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:53:13,879 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:53:13,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:53:13,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:53:13,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:53:13,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:53:13,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:53:13,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:53:13,894 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:53:13,896 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:53:13,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:53:13,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:53:13,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:53:13,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:53:13,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:53:13,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:53:13,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:53:13,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:53:13,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:53:13,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:53:13,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:53:13,951 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:53:13,952 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:53:13,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:53:13,954 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:53:13,954 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:53:13,954 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:53:13,954 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:53:13,954 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:53:13,955 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:53:13,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:53:13,956 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:53:13,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:53:13,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:53:13,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:53:13,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:53:13,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:53:13,958 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:53:13,958 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:53:13,958 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:53:13,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:53:13,959 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:53:13,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:53:13,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:53:13,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:53:13,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:53:13,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:53:13,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:53:13,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:53:13,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:53:13,961 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:53:13,961 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:53:13,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:53:13,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:53:13,962 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:53:13,962 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_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3e805276abc7f14bc5be1a3339bfd86fb912fa89a331920bf99557173610f622 [2022-11-22 01:53:14,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:53:14,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:53:14,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:53:14,410 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:53:14,411 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:53:14,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-22 01:53:17,548 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:53:17,797 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:53:17,797 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c [2022-11-22 01:53:17,804 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data/f81ad4370/43238c3d562a4a749f64e86fe33a8b2a/FLAGa97a43bf5 [2022-11-22 01:53:17,817 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/data/f81ad4370/43238c3d562a4a749f64e86fe33a8b2a [2022-11-22 01:53:17,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:53:17,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:53:17,823 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:53:17,823 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:53:17,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:53:17,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:53:17" (1/1) ... [2022-11-22 01:53:17,835 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e641a66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:17, skipping insertion in model container [2022-11-22 01:53:17,835 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:53:17" (1/1) ... [2022-11-22 01:53:17,843 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:53:17,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:53:18,060 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_71adf93f-9621-4971-a884-735810c20900/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-22 01:53:18,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:53:18,134 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:53:18,148 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_71adf93f-9621-4971-a884-735810c20900/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.synabs2.c[1107,1120] [2022-11-22 01:53:18,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:53:18,211 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:53:18,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18 WrapperNode [2022-11-22 01:53:18,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:53:18,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:53:18,214 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:53:18,214 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:53:18,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,263 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-22 01:53:18,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:53:18,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:53:18,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:53:18,265 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:53:18,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,289 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,290 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,297 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,298 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:53:18,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:53:18,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:53:18,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:53:18,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (1/1) ... [2022-11-22 01:53:18,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:53:18,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:18,349 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:53:18,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:53:18,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:53:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:53:18,502 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:53:18,504 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:53:18,770 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:53:18,776 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:53:18,776 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:53:18,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:18 BoogieIcfgContainer [2022-11-22 01:53:18,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:53:18,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:53:18,782 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:53:18,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:53:18,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:53:17" (1/3) ... [2022-11-22 01:53:18,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29231243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:18, skipping insertion in model container [2022-11-22 01:53:18,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:53:18" (2/3) ... [2022-11-22 01:53:18,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29231243 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:53:18, skipping insertion in model container [2022-11-22 01:53:18,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:18" (3/3) ... [2022-11-22 01:53:18,790 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.synabs2.c [2022-11-22 01:53:18,809 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:53:18,809 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:53:18,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:53:18,879 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;@53526879, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:53:18,880 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:53:18,884 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:18,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:53:18,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:18,891 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:53:18,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:18,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:18,900 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 01:53:18,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:53:18,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1303337635] [2022-11-22 01:53:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:18,916 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:53:18,917 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:53:18,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:53:18,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:53:19,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:19,049 WARN L261 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-22 01:53:19,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:19,295 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:53:19,296 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:53:19,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1303337635] [2022-11-22 01:53:19,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1303337635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:53:19,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:53:19,297 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:53:19,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816363190] [2022-11-22 01:53:19,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:53:19,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:53:19,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:53:19,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:53:19,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:53:19,333 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:19,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:19,397 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 01:53:19,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:53:19,400 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-22 01:53:19,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:19,407 INFO L225 Difference]: With dead ends: 20 [2022-11-22 01:53:19,408 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 01:53:19,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:53:19,414 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:19,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:53:19,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 01:53:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 01:53:19,443 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) [2022-11-22 01:53:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 01:53:19,445 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 01:53:19,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:19,445 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 01:53:19,446 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 01:53:19,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:53:19,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:19,446 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:53:19,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:19,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:53:19,658 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:19,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:19,659 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 01:53:19,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:53:19,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045988706] [2022-11-22 01:53:19,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:19,661 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:53:19,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:53:19,662 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:53:19,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:53:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:19,735 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-22 01:53:19,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:20,009 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:20,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:20,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:20,297 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:53:20,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045988706] [2022-11-22 01:53:20,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045988706] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:20,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [346870670] [2022-11-22 01:53:20,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:20,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:53:20,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:53:20,336 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:53:20,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 01:53:20,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:20,448 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 38 conjunts are in the unsatisfiable core [2022-11-22 01:53:20,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:20,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:20,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:20,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [346870670] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:20,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521448483] [2022-11-22 01:53:20,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:53:20,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:20,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:20,766 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:20,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:53:20,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:53:20,828 WARN L261 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-22 01:53:20,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:20,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:21,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:21,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521448483] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:21,242 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:53:21,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 10 [2022-11-22 01:53:21,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961107876] [2022-11-22 01:53:21,244 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:53:21,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 01:53:21,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:53:21,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 01:53:21,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-11-22 01:53:21,246 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:21,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:21,495 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-22 01:53:21,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:53:21,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 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 [2022-11-22 01:53:21,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:21,496 INFO L225 Difference]: With dead ends: 19 [2022-11-22 01:53:21,497 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 01:53:21,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:53:21,498 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 18 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:21,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 19 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:53:21,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 01:53:21,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-22 01:53:21,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:21,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-22 01:53:21,505 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-22 01:53:21,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:21,506 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-22 01:53:21,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.8) internal successors, (18), 10 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:21,506 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-22 01:53:21,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:53:21,507 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:21,507 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-22 01:53:21,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-22 01:53:21,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:21,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:22,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:22,120 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:22,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:22,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-22 01:53:22,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:53:22,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1243180149] [2022-11-22 01:53:22,121 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:53:22,122 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:53:22,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:53:22,123 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:53:22,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:53:22,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:53:22,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:53:22,237 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-22 01:53:22,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:22,584 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:22,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:23,265 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:53:23,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1243180149] [2022-11-22 01:53:23,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1243180149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:23,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1661043460] [2022-11-22 01:53:23,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:53:23,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:53:23,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:53:23,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:53:23,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 01:53:23,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:53:23,419 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:53:23,425 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-22 01:53:23,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:23,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:23,921 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:23,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1661043460] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:23,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424199759] [2022-11-22 01:53:23,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:53:23,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:23,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:23,927 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:23,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:53:24,011 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:53:24,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:53:24,015 WARN L261 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-22 01:53:24,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:24,297 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:24,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:24,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424199759] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:24,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:53:24,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 8, 8] total 14 [2022-11-22 01:53:24,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262032523] [2022-11-22 01:53:24,705 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:53:24,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:53:24,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:53:24,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:53:24,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:53:24,706 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:25,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:25,593 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-11-22 01:53:25,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-22 01:53:25,614 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 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 14 [2022-11-22 01:53:25,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:25,615 INFO L225 Difference]: With dead ends: 31 [2022-11-22 01:53:25,615 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 01:53:25,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:53:25,617 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 35 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:25,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 33 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-22 01:53:25,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 01:53:25,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-11-22 01:53:25,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:25,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-11-22 01:53:25,625 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-11-22 01:53:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:25,626 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-11-22 01:53:25,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.142857142857143) internal successors, (30), 14 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-11-22 01:53:25,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-22 01:53:25,627 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:25,627 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-11-22 01:53:25,652 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:25,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:26,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:26,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:53:26,228 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:26,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:26,229 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 3 times [2022-11-22 01:53:26,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:53:26,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950946163] [2022-11-22 01:53:26,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:53:26,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:53:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:53:26,233 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:53:26,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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 (9)] Waiting until timeout for monitored process [2022-11-22 01:53:26,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-22 01:53:26,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:53:26,393 WARN L261 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 146 conjunts are in the unsatisfiable core [2022-11-22 01:53:26,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:27,357 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:27,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:29,615 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:53:29,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950946163] [2022-11-22 01:53:29,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950946163] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:29,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1658738232] [2022-11-22 01:53:29,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:53:29,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:53:29,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:53:29,619 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:53:29,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-22 01:53:29,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-22 01:53:29,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:53:29,890 WARN L261 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 146 conjunts are in the unsatisfiable core [2022-11-22 01:53:29,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:30,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:30,989 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:30,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1658738232] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:30,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1495349848] [2022-11-22 01:53:30,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-22 01:53:30,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:53:30,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:53:30,992 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:53:31,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:53:31,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-11-22 01:53:31,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:53:31,144 WARN L261 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 149 conjunts are in the unsatisfiable core [2022-11-22 01:53:31,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:53:31,752 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:31,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:53:32,639 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:53:32,639 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1495349848] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:53:32,639 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:53:32,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 12, 12] total 22 [2022-11-22 01:53:32,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651249240] [2022-11-22 01:53:32,647 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:53:32,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-11-22 01:53:32,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:53:32,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-11-22 01:53:32,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:53:32,651 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:35,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:53:35,357 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-22 01:53:35,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-22 01:53:35,363 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-11-22 01:53:35,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:53:35,367 INFO L225 Difference]: With dead ends: 49 [2022-11-22 01:53:35,367 INFO L226 Difference]: Without dead ends: 47 [2022-11-22 01:53:35,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 128 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=308, Invalid=882, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 01:53:35,374 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 89 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:53:35,374 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 36 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:53:35,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-22 01:53:35,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2022-11-22 01:53:35,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.0227272727272727) internal successors, (45), 44 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2022-11-22 01:53:35,389 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 26 [2022-11-22 01:53:35,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:53:35,389 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2022-11-22 01:53:35,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.4545454545454546) internal successors, (54), 22 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:53:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2022-11-22 01:53:35,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-22 01:53:35,391 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:53:35,391 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 1, 1, 1, 1] [2022-11-22 01:53:35,409 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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 (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:35,615 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:35,812 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:36,009 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:53:36,010 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:53:36,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:53:36,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1244940003, now seen corresponding path program 4 times [2022-11-22 01:53:36,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:53:36,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [572375251] [2022-11-22 01:53:36,011 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-11-22 01:53:36,011 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:53:36,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:53:36,012 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:53:36,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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 (12)] Waiting until timeout for monitored process [2022-11-22 01:53:36,255 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-11-22 01:53:36,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-22 01:53:36,255 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:53:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:53:36,513 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-22 01:53:36,514 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:53:36,515 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:53:36,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/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 (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:53:36,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:53:36,736 INFO L444 BasicCegarLoop]: Path program histogram: [4, 1] [2022-11-22 01:53:36,740 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:53:36,802 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,802 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,802 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,815 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,815 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,815 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,815 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,815 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,816 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,816 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,816 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,816 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,816 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,816 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:53:36 BoogieIcfgContainer [2022-11-22 01:53:36,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:53:36,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:53:36,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:53:36,853 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:53:36,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:53:18" (3/4) ... [2022-11-22 01:53:36,855 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 01:53:36,889 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,889 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,889 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,889 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,889 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,889 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,889 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,890 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:53:36,997 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:53:36,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:53:36,998 INFO L158 Benchmark]: Toolchain (without parser) took 19177.31ms. Allocated memory was 86.0MB in the beginning and 182.5MB in the end (delta: 96.5MB). Free memory was 63.6MB in the beginning and 118.7MB in the end (delta: -55.1MB). Peak memory consumption was 44.2MB. Max. memory is 16.1GB. [2022-11-22 01:53:36,999 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:53:36,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 390.29ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 52.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:53:36,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.49ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 50.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:53:37,000 INFO L158 Benchmark]: Boogie Preprocessor took 36.59ms. Allocated memory is still 86.0MB. Free memory was 50.7MB in the beginning and 49.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:53:37,000 INFO L158 Benchmark]: RCFGBuilder took 476.51ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 61.6MB in the end (delta: -12.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-11-22 01:53:37,001 INFO L158 Benchmark]: TraceAbstraction took 18070.29ms. Allocated memory was 86.0MB in the beginning and 182.5MB in the end (delta: 96.5MB). Free memory was 60.8MB in the beginning and 130.5MB in the end (delta: -69.7MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2022-11-22 01:53:37,001 INFO L158 Benchmark]: Witness Printer took 145.64ms. Allocated memory is still 182.5MB. Free memory was 130.5MB in the beginning and 118.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:53:37,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 390.29ms. Allocated memory is still 86.0MB. Free memory was 63.5MB in the beginning and 52.4MB in the end (delta: 11.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.49ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 50.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.59ms. Allocated memory is still 86.0MB. Free memory was 50.7MB in the beginning and 49.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 476.51ms. Allocated memory is still 86.0MB. Free memory was 49.2MB in the beginning and 61.6MB in the end (delta: -12.4MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 18070.29ms. Allocated memory was 86.0MB in the beginning and 182.5MB in the end (delta: 96.5MB). Free memory was 60.8MB in the beginning and 130.5MB in the end (delta: -69.7MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * Witness Printer took 145.64ms. Allocated memory is still 182.5MB. Free memory was 130.5MB in the beginning and 118.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 20]: a call to reach_error is reachable a call to reach_error is reachable We found a 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_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 5); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (5 - 1); [L31] const SORT_19 mask_SORT_19 = (SORT_19)-1 >> (sizeof(SORT_19) * 8 - 32); [L32] const SORT_19 msb_SORT_19 = (SORT_19)1 << (32 - 1); [L34] const SORT_4 var_5 = 0; [L35] const SORT_4 var_8 = 6; [L36] const SORT_1 var_14 = 1; [L37] const SORT_19 var_21 = 2; [L39] SORT_1 input_2; [L40] SORT_1 input_3; [L42] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L43] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L45] SORT_4 init_7_arg_1 = var_5; [L46] state_6 = init_7_arg_1 [L47] SORT_4 init_10_arg_1 = var_8; [L48] state_9 = init_10_arg_1 VAL [init_10_arg_1=6, init_7_arg_1=0, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, state_6=0, state_9=6, var_14=1, var_21=2, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=3, input_3=5, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=2, next_28_arg_1=8, state_6=2, state_9=8, var_11=1, var_11_arg_0=0, var_11_arg_1=6, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=0, var_20_arg_0=0, var_21=2, var_22=2, var_22_arg_0=0, var_22_arg_1=2, var_23=2, var_23_arg_0=2, var_25=6, var_25_arg_0=6, var_26=8, var_26_arg_0=6, var_26_arg_1=2, var_27=8, var_27_arg_0=8, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=7, input_3=9, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=4, next_28_arg_1=10, state_6=4, state_9=10, var_11=1, var_11_arg_0=2, var_11_arg_1=8, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=2, var_20_arg_0=2, var_21=2, var_22=4, var_22_arg_0=2, var_22_arg_1=2, var_23=4, var_23_arg_0=4, var_25=8, var_25_arg_0=8, var_26=10, var_26_arg_0=8, var_26_arg_1=2, var_27=10, var_27_arg_0=10, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=11, input_3=13, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=6, next_28_arg_1=12, state_6=6, state_9=12, var_11=1, var_11_arg_0=4, var_11_arg_1=10, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=4, var_20_arg_0=4, var_21=2, var_22=6, var_22_arg_0=4, var_22_arg_1=2, var_23=6, var_23_arg_0=6, var_25=10, var_25_arg_0=10, var_26=12, var_26_arg_0=10, var_26_arg_1=2, var_27=12, var_27_arg_0=12, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=15, input_3=17, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=8, next_28_arg_1=14, state_6=8, state_9=14, var_11=1, var_11_arg_0=6, var_11_arg_1=12, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=6, var_20_arg_0=6, var_21=2, var_22=8, var_22_arg_0=6, var_22_arg_1=2, var_23=8, var_23_arg_0=8, var_25=12, var_25_arg_0=12, var_26=14, var_26_arg_0=12, var_26_arg_1=2, var_27=14, var_27_arg_0=14, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=19, input_3=21, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=10, next_28_arg_1=16, state_6=10, state_9=16, var_11=1, var_11_arg_0=8, var_11_arg_1=14, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=8, var_20_arg_0=8, var_21=2, var_22=10, var_22_arg_0=8, var_22_arg_1=2, var_23=10, var_23_arg_0=10, var_25=14, var_25_arg_0=14, var_26=16, var_26_arg_0=14, var_26_arg_1=2, var_27=16, var_27_arg_0=16, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=23, input_3=25, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=12, next_28_arg_1=18, state_6=12, state_9=18, var_11=1, var_11_arg_0=10, var_11_arg_1=16, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=10, var_20_arg_0=10, var_21=2, var_22=12, var_22_arg_0=10, var_22_arg_1=2, var_23=12, var_23_arg_0=12, var_25=16, var_25_arg_0=16, var_26=18, var_26_arg_0=16, var_26_arg_1=2, var_27=18, var_27_arg_0=18, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=27, input_3=29, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=14, next_28_arg_1=20, state_6=14, state_9=20, var_11=1, var_11_arg_0=12, var_11_arg_1=18, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=12, var_20_arg_0=12, var_21=2, var_22=14, var_22_arg_0=12, var_22_arg_1=2, var_23=14, var_23_arg_0=14, var_25=18, var_25_arg_0=18, var_26=20, var_26_arg_0=18, var_26_arg_1=2, var_27=20, var_27_arg_0=20, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=33, input_3=34, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=16, next_28_arg_1=22, state_6=16, state_9=22, var_11=1, var_11_arg_0=14, var_11_arg_1=20, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=14, var_20_arg_0=14, var_21=2, var_22=16, var_22_arg_0=14, var_22_arg_1=2, var_23=16, var_23_arg_0=16, var_25=20, var_25_arg_0=20, var_26=22, var_26_arg_0=20, var_26_arg_1=2, var_27=22, var_27_arg_0=22, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=35, input_3=36, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=18, next_28_arg_1=24, state_6=18, state_9=24, var_11=1, var_11_arg_0=16, var_11_arg_1=22, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=16, var_20_arg_0=16, var_21=2, var_22=18, var_22_arg_0=16, var_22_arg_1=2, var_23=18, var_23_arg_0=18, var_25=22, var_25_arg_0=22, var_26=24, var_26_arg_0=22, var_26_arg_1=2, var_27=24, var_27_arg_0=24, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=37, input_3=38, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=20, next_28_arg_1=26, state_6=20, state_9=26, var_11=1, var_11_arg_0=18, var_11_arg_1=24, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=18, var_20_arg_0=18, var_21=2, var_22=20, var_22_arg_0=18, var_22_arg_1=2, var_23=20, var_23_arg_0=20, var_25=24, var_25_arg_0=24, var_26=26, var_26_arg_0=24, var_26_arg_1=2, var_27=26, var_27_arg_0=26, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=39, input_3=40, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=22, next_28_arg_1=28, state_6=22, state_9=28, var_11=1, var_11_arg_0=20, var_11_arg_1=26, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=20, var_20_arg_0=20, var_21=2, var_22=22, var_22_arg_0=20, var_22_arg_1=2, var_23=22, var_23_arg_0=22, var_25=26, var_25_arg_0=26, var_26=28, var_26_arg_0=26, var_26_arg_1=2, var_27=28, var_27_arg_0=28, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=41, input_3=42, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=24, next_28_arg_1=30, state_6=24, state_9=30, var_11=1, var_11_arg_0=22, var_11_arg_1=28, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=22, var_20_arg_0=22, var_21=2, var_22=24, var_22_arg_0=22, var_22_arg_1=2, var_23=24, var_23_arg_0=24, var_25=28, var_25_arg_0=28, var_26=30, var_26_arg_0=28, var_26_arg_1=2, var_27=30, var_27_arg_0=30, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_arg_0)) [L20] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L65] RET __VERIFIER_assert(!(bad_17_arg_0)) [L67] SORT_4 var_20_arg_0 = state_6; [L68] var_20_arg_0 = var_20_arg_0 & mask_SORT_4 [L69] SORT_19 var_20 = var_20_arg_0; [L70] SORT_19 var_22_arg_0 = var_20; [L71] SORT_19 var_22_arg_1 = var_21; [L72] SORT_19 var_22 = var_22_arg_0 + var_22_arg_1; [L73] SORT_19 var_23_arg_0 = var_22; [L74] SORT_4 var_23 = var_23_arg_0 >> 0; [L75] var_23 = var_23 & mask_SORT_4 [L76] SORT_4 next_24_arg_1 = var_23; [L77] SORT_4 var_25_arg_0 = state_9; [L78] var_25_arg_0 = var_25_arg_0 & mask_SORT_4 [L79] SORT_19 var_25 = var_25_arg_0; [L80] SORT_19 var_26_arg_0 = var_25; [L81] SORT_19 var_26_arg_1 = var_21; [L82] SORT_19 var_26 = var_26_arg_0 + var_26_arg_1; [L83] SORT_19 var_27_arg_0 = var_26; [L84] SORT_4 var_27 = var_27_arg_0 >> 0; [L85] var_27 = var_27 & mask_SORT_4 [L86] SORT_4 next_28_arg_1 = var_27; [L88] state_6 = next_24_arg_1 [L89] state_9 = next_28_arg_1 VAL [bad_17_arg_0=0, init_10_arg_1=6, init_7_arg_1=0, input_2=43, input_3=44, mask_SORT_1=1, mask_SORT_19=4294967295, mask_SORT_4=31, msb_SORT_1=1, msb_SORT_19=2147483648, msb_SORT_4=16, next_24_arg_1=26, next_28_arg_1=0, state_6=26, state_9=0, var_11=1, var_11_arg_0=24, var_11_arg_1=30, var_14=1, var_15=254, var_15_arg_0=1, var_16=0, var_16_arg_0=1, var_16_arg_1=254, var_20=24, var_20_arg_0=24, var_21=2, var_22=26, var_22_arg_0=24, var_22_arg_1=2, var_23=26, var_23_arg_0=26, var_25=30, var_25_arg_0=30, var_26=32, var_26_arg_0=30, var_26_arg_1=2, var_27=0, var_27_arg_0=32, var_5=0, var_8=6] [L51] input_2 = __VERIFIER_nondet_uchar() [L52] input_3 = __VERIFIER_nondet_uchar() [L55] SORT_4 var_11_arg_0 = state_6; [L56] SORT_4 var_11_arg_1 = state_9; [L57] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L58] SORT_1 var_15_arg_0 = var_11; [L59] SORT_1 var_15 = ~var_15_arg_0; [L60] SORT_1 var_16_arg_0 = var_14; [L61] SORT_1 var_16_arg_1 = var_15; [L62] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L63] var_16 = var_16 & mask_SORT_1 [L64] SORT_1 bad_17_arg_0 = var_16; [L65] CALL __VERIFIER_assert(!(bad_17_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.9s, OverallIterations: 5, TraceHistogramMax: 14, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 4.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 84 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 339 IncrementalHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 17 mSDtfsCounter, 339 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 298 GetRequests, 226 SyntacticMatches, 6 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=4, InterpolantAutomatonStates: 46, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 9.6s InterpolantComputationTime, 193 NumberOfCodeBlocks, 193 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 274 ConstructedInterpolants, 108 QuantifiedInterpolants, 19605 SizeOfPredicates, 725 NumberOfNonLiveVariables, 1376 ConjunctsInSsa, 801 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 0/564 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-22 01:53:37,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_71adf93f-9621-4971-a884-735810c20900/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE