./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 61c8c64e915e431c8be3eb3e21cd37f38facfb7590ca1a7ce35348106d4e6e5f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:40:40,255 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:40:40,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:40:40,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:40:40,273 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:40:40,273 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:40:40,274 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:40:40,276 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:40:40,277 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:40:40,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:40:40,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:40:40,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:40:40,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:40:40,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:40:40,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:40:40,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:40:40,282 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:40:40,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:40:40,285 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:40:40,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:40:40,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:40:40,292 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:40:40,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:40:40,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:40:40,296 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:40:40,296 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:40:40,296 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:40:40,297 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:40:40,297 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:40:40,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:40:40,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:40:40,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:40:40,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:40:40,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:40:40,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:40:40,301 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:40:40,301 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:40:40,302 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:40:40,302 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:40:40,302 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:40:40,303 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:40:40,304 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-12-14 06:40:40,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:40:40,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:40:40,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:40:40,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:40:40,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:40:40,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:40:40,320 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:40:40,321 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:40:40,321 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:40:40,321 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:40:40,321 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:40:40,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:40:40,321 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:40:40,321 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:40:40,321 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:40:40,322 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:40:40,322 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:40:40,322 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:40:40,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:40:40,322 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:40:40,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:40:40,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:40:40,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:40:40,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:40:40,324 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:40:40,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:40:40,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:40:40,324 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:40:40,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:40:40,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:40:40,325 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:40:40,325 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_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61c8c64e915e431c8be3eb3e21cd37f38facfb7590ca1a7ce35348106d4e6e5f [2022-12-14 06:40:40,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:40:40,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:40:40,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:40:40,564 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:40:40,564 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:40:40,565 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2022-12-14 06:40:43,104 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:40:43,275 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:40:43,276 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2022-12-14 06:40:43,282 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data/3d70b7a8d/38073a1b40fe4a06bc6f6cf1664dfd5b/FLAGfdc00da9a [2022-12-14 06:40:43,677 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data/3d70b7a8d/38073a1b40fe4a06bc6f6cf1664dfd5b [2022-12-14 06:40:43,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:40:43,681 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:40:43,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:40:43,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:40:43,685 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:40:43,685 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,686 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47c9670e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43, skipping insertion in model container [2022-12-14 06:40:43,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,692 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:40:43,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:40:43,795 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_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1107,1120] [2022-12-14 06:40:43,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:40:43,833 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:40:43,840 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_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1107,1120] [2022-12-14 06:40:43,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:40:43,868 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:40:43,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43 WrapperNode [2022-12-14 06:40:43,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:40:43,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:40:43,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:40:43,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:40:43,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,898 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 158 [2022-12-14 06:40:43,898 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:40:43,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:40:43,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:40:43,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:40:43,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,914 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,915 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,916 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:40:43,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:40:43,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:40:43,919 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:40:43,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (1/1) ... [2022-12-14 06:40:43,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:40:43,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:40:43,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:40:43,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:40:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:40:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:40:44,049 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:40:44,050 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:40:44,277 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:40:44,291 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:40:44,291 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:40:44,293 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:44 BoogieIcfgContainer [2022-12-14 06:40:44,293 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:40:44,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:40:44,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:40:44,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:40:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:40:43" (1/3) ... [2022-12-14 06:40:44,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20808e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:44, skipping insertion in model container [2022-12-14 06:40:44,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:43" (2/3) ... [2022-12-14 06:40:44,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20808e25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:44, skipping insertion in model container [2022-12-14 06:40:44,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:44" (3/3) ... [2022-12-14 06:40:44,299 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal58.c [2022-12-14 06:40:44,313 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:40:44,313 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:40:44,347 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:40:44,352 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;@23368231, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:40:44,352 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:40:44,355 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:44,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 06:40:44,359 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:40:44,359 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 06:40:44,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:40:44,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:40:44,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-12-14 06:40:44,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:40:44,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43425742] [2022-12-14 06:40:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:40:44,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:40:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:40:44,568 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:40:44,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:40:44,642 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:40:44,644 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:40:44,646 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:40:44,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:40:44,652 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:40:44,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:40:44,668 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-14 06:40:44,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:40:44 BoogieIcfgContainer [2022-12-14 06:40:44,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:40:44,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:40:44,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:40:44,674 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:40:44,675 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:44" (3/4) ... [2022-12-14 06:40:44,677 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:40:44,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:40:44,678 INFO L158 Benchmark]: Toolchain (without parser) took 997.57ms. Allocated memory is still 134.2MB. Free memory was 100.3MB in the beginning and 89.7MB in the end (delta: 10.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2022-12-14 06:40:44,678 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:40:44,679 INFO L158 Benchmark]: CACSL2BoogieTranslator took 187.24ms. Allocated memory is still 134.2MB. Free memory was 100.3MB in the beginning and 87.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 06:40:44,679 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.27ms. Allocated memory is still 134.2MB. Free memory was 87.6MB in the beginning and 85.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:40:44,679 INFO L158 Benchmark]: Boogie Preprocessor took 19.28ms. Allocated memory is still 134.2MB. Free memory was 85.1MB in the beginning and 83.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:40:44,680 INFO L158 Benchmark]: RCFGBuilder took 374.30ms. Allocated memory is still 134.2MB. Free memory was 83.4MB in the beginning and 58.9MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-14 06:40:44,680 INFO L158 Benchmark]: TraceAbstraction took 378.96ms. Allocated memory is still 134.2MB. Free memory was 58.2MB in the beginning and 90.3MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:40:44,680 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 134.2MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:40:44,682 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 87.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 187.24ms. Allocated memory is still 134.2MB. Free memory was 100.3MB in the beginning and 87.6MB in the end (delta: 12.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.27ms. Allocated memory is still 134.2MB. Free memory was 87.6MB in the beginning and 85.1MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.28ms. Allocated memory is still 134.2MB. Free memory was 85.1MB in the beginning and 83.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 374.30ms. Allocated memory is still 134.2MB. Free memory was 83.4MB in the beginning and 58.9MB in the end (delta: 24.5MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 378.96ms. Allocated memory is still 134.2MB. Free memory was 58.2MB in the beginning and 90.3MB in the end (delta: -32.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 134.2MB. Free memory is still 89.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 73, overapproximation of bitwiseOr at line 95, overapproximation of bitwiseAnd at line 61. 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_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L31] const SORT_1 var_11 = 0; [L32] const SORT_5 var_15 = 0; [L33] const SORT_5 var_21 = 4; [L34] const SORT_1 var_31 = 1; [L36] SORT_1 input_2; [L37] SORT_1 input_3; [L38] SORT_1 input_4; [L39] SORT_5 input_6; [L40] SORT_5 input_7; [L41] SORT_1 input_8; [L42] SORT_5 input_9; [L43] SORT_5 input_10; [L45] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L50] SORT_1 init_13_arg_1 = var_11; [L51] state_12 = init_13_arg_1 [L52] SORT_5 init_17_arg_1 = var_15; [L53] state_16 = init_17_arg_1 [L54] SORT_1 init_19_arg_1 = var_11; [L55] state_18 = init_19_arg_1 [L56] SORT_5 init_24_arg_1 = var_15; [L57] state_23 = init_24_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_24_arg_1=0, mask_SORT_1=1, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_23=0, var_11=0, var_15=0, var_21=4, var_31=1] [L60] input_2 = __VERIFIER_nondet_uchar() [L61] input_2 = input_2 & mask_SORT_1 [L62] input_3 = __VERIFIER_nondet_uchar() [L63] input_3 = input_3 & mask_SORT_1 [L64] input_4 = __VERIFIER_nondet_uchar() [L65] input_6 = __VERIFIER_nondet_uchar() [L66] input_7 = __VERIFIER_nondet_uchar() [L67] input_8 = __VERIFIER_nondet_uchar() [L68] input_9 = __VERIFIER_nondet_uchar() [L69] input_10 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_14_arg_0 = state_12; [L73] SORT_1 var_14 = ~var_14_arg_0; [L74] SORT_1 var_20_arg_0 = state_18; [L75] SORT_5 var_20_arg_1 = state_16; [L76] SORT_5 var_20_arg_2 = input_7; [L77] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L78] var_20 = var_20 & mask_SORT_5 [L79] SORT_5 var_22_arg_0 = var_20; [L80] SORT_5 var_22_arg_1 = var_21; [L81] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L82] SORT_1 var_25_arg_0 = state_18; [L83] SORT_5 var_25_arg_1 = state_23; [L84] SORT_5 var_25_arg_2 = input_7; [L85] SORT_5 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L86] var_25 = var_25 & mask_SORT_5 [L87] SORT_5 var_26_arg_0 = var_25; [L88] SORT_5 var_26_arg_1 = var_21; [L89] SORT_1 var_26 = var_26_arg_0 == var_26_arg_1; [L90] SORT_1 var_27_arg_0 = var_22; [L91] SORT_1 var_27_arg_1 = var_26; [L92] SORT_1 var_27 = var_27_arg_0 == var_27_arg_1; [L93] SORT_1 var_28_arg_0 = var_14; [L94] SORT_1 var_28_arg_1 = var_27; [L95] SORT_1 var_28 = var_28_arg_0 | var_28_arg_1; [L96] SORT_1 var_32_arg_0 = var_28; [L97] SORT_1 var_32 = ~var_32_arg_0; [L98] SORT_1 var_33_arg_0 = var_31; [L99] SORT_1 var_33_arg_1 = var_32; [L100] SORT_1 var_33 = var_33_arg_0 & var_33_arg_1; [L101] var_33 = var_33 & mask_SORT_1 [L102] SORT_1 bad_34_arg_0 = var_33; [L103] CALL __VERIFIER_assert(!(bad_34_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 [2022-12-14 06:40:44,696 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 61c8c64e915e431c8be3eb3e21cd37f38facfb7590ca1a7ce35348106d4e6e5f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 06:40:46,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:40:46,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:40:46,407 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:40:46,408 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:40:46,409 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:40:46,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:40:46,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:40:46,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:40:46,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:40:46,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:40:46,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:40:46,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:40:46,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:40:46,425 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:40:46,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:40:46,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:40:46,428 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:40:46,431 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:40:46,434 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:40:46,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:40:46,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:40:46,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:40:46,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:40:46,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:40:46,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:40:46,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:40:46,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:40:46,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:40:46,452 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:40:46,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:40:46,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:40:46,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:40:46,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:40:46,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:40:46,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:40:46,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:40:46,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:40:46,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:40:46,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:40:46,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:40:46,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-12-14 06:40:46,491 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:40:46,491 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:40:46,492 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:40:46,492 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:40:46,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:40:46,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:40:46,493 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:40:46,493 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:40:46,493 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:40:46,493 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:40:46,494 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:40:46,494 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:40:46,495 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:40:46,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:40:46,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:40:46,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:40:46,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:40:46,496 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:40:46,496 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:40:46,496 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:40:46,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:40:46,496 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:40:46,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:40:46,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:40:46,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:40:46,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:40:46,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:40:46,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:40:46,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:40:46,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:40:46,498 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:40:46,498 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:40:46,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:40:46,499 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:40:46,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:40:46,499 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_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 61c8c64e915e431c8be3eb3e21cd37f38facfb7590ca1a7ce35348106d4e6e5f [2022-12-14 06:40:46,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:40:46,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:40:46,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:40:46,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:40:46,800 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:40:46,800 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2022-12-14 06:40:49,427 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:40:49,562 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:40:49,563 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c [2022-12-14 06:40:49,568 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data/1f543086d/d0874dac5c0a46c285bebde7e1b29f9c/FLAG1cfb548f3 [2022-12-14 06:40:49,578 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/data/1f543086d/d0874dac5c0a46c285bebde7e1b29f9c [2022-12-14 06:40:49,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:40:49,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:40:49,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:40:49,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:40:49,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:40:49,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a8eb14c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49, skipping insertion in model container [2022-12-14 06:40:49,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:40:49,607 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:40:49,699 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_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1107,1120] [2022-12-14 06:40:49,738 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:40:49,742 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:40:49,750 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_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal58.c[1107,1120] [2022-12-14 06:40:49,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:40:49,780 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:40:49,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49 WrapperNode [2022-12-14 06:40:49,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:40:49,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:40:49,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:40:49,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:40:49,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,793 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,811 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 158 [2022-12-14 06:40:49,811 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:40:49,812 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:40:49,812 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:40:49,812 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:40:49,819 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:40:49,833 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:40:49,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:40:49,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:40:49,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (1/1) ... [2022-12-14 06:40:49,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:40:49,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:40:49,862 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:40:49,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:40:49,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:40:49,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:40:49,986 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:40:49,988 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:40:50,144 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:40:50,150 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:40:50,151 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-14 06:40:50,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:50 BoogieIcfgContainer [2022-12-14 06:40:50,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:40:50,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:40:50,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:40:50,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:40:50,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:40:49" (1/3) ... [2022-12-14 06:40:50,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2677b3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:50, skipping insertion in model container [2022-12-14 06:40:50,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:40:49" (2/3) ... [2022-12-14 06:40:50,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2677b3ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:40:50, skipping insertion in model container [2022-12-14 06:40:50,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:50" (3/3) ... [2022-12-14 06:40:50,161 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal58.c [2022-12-14 06:40:50,179 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:40:50,180 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-14 06:40:50,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:40:50,228 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;@23bdfe17, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:40:50,228 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-14 06:40:50,232 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:50,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 06:40:50,238 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:40:50,238 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 06:40:50,239 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:40:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:40:50,244 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-14 06:40:50,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:40:50,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1439995994] [2022-12-14 06:40:50,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:40:50,258 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:40:50,258 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:40:50,259 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:40:50,260 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 06:40:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:40:50,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 06:40:50,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:40:50,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:50,461 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:40:50,462 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:40:50,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1439995994] [2022-12-14 06:40:50,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1439995994] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:40:50,463 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:40:50,463 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 06:40:50,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409856411] [2022-12-14 06:40:50,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:40:50,468 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 06:40:50,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:40:50,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 06:40:50,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 06:40:50,490 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:50,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:40:50,535 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-14 06:40:50,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 06:40:50,537 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 06:40:50,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:40:50,543 INFO L225 Difference]: With dead ends: 20 [2022-12-14 06:40:50,543 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 06:40:50,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 06:40:50,549 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 [2022-12-14 06:40:50,549 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] [2022-12-14 06:40:50,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 06:40:50,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-14 06:40:50,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-14 06:40:50,572 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-14 06:40:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:40:50,572 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-14 06:40:50,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-14 06:40:50,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 06:40:50,577 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:40:50,577 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-14 06:40:50,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 06:40:50,777 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:40:50,778 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:40:50,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:40:50,780 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-14 06:40:50,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:40:50,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [104949316] [2022-12-14 06:40:50,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:40:50,782 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:40:50,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:40:50,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:40:50,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-14 06:40:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:40:50,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 39 conjunts are in the unsatisfiable core [2022-12-14 06:40:50,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:40:51,275 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:51,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:40:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:52,293 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:40:52,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [104949316] [2022-12-14 06:40:52,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [104949316] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:40:52,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [74833847] [2022-12-14 06:40:52,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:40:52,294 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:40:52,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:40:52,316 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:40:52,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-12-14 06:40:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:40:52,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-14 06:40:52,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:40:52,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:52,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:40:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:53,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [74833847] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:40:53,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [570499280] [2022-12-14 06:40:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:40:53,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:40:53,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:40:53,161 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:40:53,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 06:40:53,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:40:53,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-14 06:40:53,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:40:53,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:53,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:40:53,917 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:53,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [570499280] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:40:53,918 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:40:53,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 6, 6] total 12 [2022-12-14 06:40:53,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610402731] [2022-12-14 06:40:53,919 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:40:53,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 06:40:53,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:40:53,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 06:40:53,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-12-14 06:40:53,921 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:54,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:40:54,034 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-14 06:40:54,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 06:40:54,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 06:40:54,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:40:54,035 INFO L225 Difference]: With dead ends: 16 [2022-12-14 06:40:54,035 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 06:40:54,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-12-14 06:40:54,036 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 06:40:54,036 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 25 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:40:54,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 06:40:54,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-14 06:40:54,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:54,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-14 06:40:54,039 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-14 06:40:54,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:40:54,039 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-14 06:40:54,039 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:40:54,039 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-14 06:40:54,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:40:54,039 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:40:54,039 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-14 06:40:54,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-12-14 06:40:54,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-14 06:40:54,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-12-14 06:40:54,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt [2022-12-14 06:40:54,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-14 06:40:54,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:40:54,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-14 06:40:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:40:54,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159708813] [2022-12-14 06:40:54,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:40:54,647 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:40:54,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:40:54,648 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 06:40:54,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-14 06:40:54,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:40:54,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:40:54,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 101 conjunts are in the unsatisfiable core [2022-12-14 06:40:54,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:40:55,874 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:40:55,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:41:04,943 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:41:04,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:41:04,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159708813] [2022-12-14 06:41:04,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159708813] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:41:04,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [274581887] [2022-12-14 06:41:04,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:41:04,944 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-12-14 06:41:04,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 [2022-12-14 06:41:04,945 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-12-14 06:41:04,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-12-14 06:41:05,111 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:41:05,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:41:05,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 97 conjunts are in the unsatisfiable core [2022-12-14 06:41:05,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:41:05,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:41:05,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:41:09,033 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:41:09,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [274581887] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:41:09,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255511474] [2022-12-14 06:41:09,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-14 06:41:09,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 06:41:09,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:41:09,035 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 06:41:09,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 06:41:09,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-14 06:41:09,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-14 06:41:09,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 102 conjunts are in the unsatisfiable core [2022-12-14 06:41:09,131 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:41:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:41:09,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 06:41:14,933 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 06:41:14,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255511474] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 06:41:14,933 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-12-14 06:41:14,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 20 [2022-12-14 06:41:14,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044498814] [2022-12-14 06:41:14,933 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-12-14 06:41:14,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-12-14 06:41:14,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:41:14,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-12-14 06:41:14,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-12-14 06:41:14,936 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:41:15,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:41:15,277 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-12-14 06:41:15,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 06:41:15,278 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 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 11 [2022-12-14 06:41:15,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:41:15,278 INFO L225 Difference]: With dead ends: 13 [2022-12-14 06:41:15,278 INFO L226 Difference]: Without dead ends: 0 [2022-12-14 06:41:15,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 37 SyntacticMatches, 5 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=113, Invalid=487, Unknown=0, NotChecked=0, Total=600 [2022-12-14 06:41:15,279 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 24 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 06:41:15,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 13 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 06:41:15,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-14 06:41:15,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-14 06:41:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:41:15,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-14 06:41:15,280 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-12-14 06:41:15,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:41:15,280 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-14 06:41:15,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.8) internal successors, (36), 20 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 06:41:15,281 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-14 06:41:15,281 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 06:41:15,282 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-14 06:41:15,287 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-14 06:41:15,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-12-14 06:41:15,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-12-14 06:41:15,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 06:41:15,888 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-14 06:41:16,082 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-14 06:41:16,083 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 169) the Hoare annotation is: (let ((.cse0 (exists ((|ULTIMATE.start_main_~var_40_arg_1~0#1| (_ BitVec 8))) (let ((.cse12 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_40_arg_1~0#1|)))))))))))) (and (= .cse12 |ULTIMATE.start_main_~state_16~0#1|) (= .cse12 |ULTIMATE.start_main_~state_23~0#1|))))) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= (_ bv4 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse3 (= |ULTIMATE.start_main_~var_31~0#1| |ULTIMATE.start_main_~state_12~0#1|)) (.cse4 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (.cse7 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse8 (= (_ bv1 8) |ULTIMATE.start_main_~var_31~0#1|)) (.cse11 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse9 (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 8))) (.cse10 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv0 8)))) (or (let ((.cse6 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (and .cse0 .cse1 .cse2 .cse3 .cse4 (exists ((|ULTIMATE.start_main_~var_25_arg_2~0#1| (_ BitVec 8))) (let ((.cse5 ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_5~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_25_arg_2~0#1|))))))) (and (= .cse5 |ULTIMATE.start_main_~var_25~0#1|) (= .cse5 |ULTIMATE.start_main_~var_20~0#1|)))) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_7| (_ BitVec 8))) (= |ULTIMATE.start_main_~input_2~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet4#1_7|) .cse6)))) .cse7 .cse8 (= ((_ extract 7 0) (bvand (_ bv1 32) .cse6)) |ULTIMATE.start_main_~state_18~0#1|) .cse9 .cse10 (exists ((|v_ULTIMATE.start_main_#t~nondet5#1_7| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet5#1_7|) .cse6)) |ULTIMATE.start_main_~input_3~0#1|)))) (and .cse0 .cse1 (= (_ bv0 8) |ULTIMATE.start_main_~state_16~0#1|) .cse2 .cse7 .cse8 (= |ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~state_12~0#1|) .cse11 .cse9 .cse10) (and .cse1 .cse2 .cse3 .cse4 .cse7 .cse8 .cse11 .cse9 .cse10))) [2022-12-14 06:41:16,083 INFO L899 garLoopResultBuilder]: For program point L58-3(lines 58 169) no Hoare annotation was computed. [2022-12-14 06:41:16,083 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-14 06:41:16,084 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 171) the Hoare annotation is: false [2022-12-14 06:41:16,084 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-14 06:41:16,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-14 06:41:16,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-14 06:41:16,084 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-14 06:41:16,084 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-14 06:41:16,084 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-14 06:41:16,087 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1] [2022-12-14 06:41:16,089 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:41:16,100 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-12-14 06:41:16,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-12-14 06:41:16,101 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,102 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,109 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,109 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,109 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,110 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,110 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-12-14 06:41:16,110 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-12-14 06:41:16,110 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,110 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:41:16 BoogieIcfgContainer [2022-12-14 06:41:16,112 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:41:16,113 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:41:16,113 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:41:16,113 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:41:16,113 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:40:50" (3/4) ... [2022-12-14 06:41:16,116 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 06:41:16,132 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-14 06:41:16,133 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 06:41:16,133 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 06:41:16,156 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((\exists ULTIMATE.start_main_~var_40_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_23) && 1bv8 == mask_SORT_1) && 4bv8 == var_21) && var_31 == state_12) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_25_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_25 && ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_20)) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_7 : bv8 :: input_2 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet4#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && var_15 == 0bv8) && var_11 == 0bv8) && (\exists v_ULTIMATE.start_main_#t~nondet5#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet5#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == input_3)) || ((((((((((\exists ULTIMATE.start_main_~var_40_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_23) && 1bv8 == mask_SORT_1) && 0bv8 == state_16) && 4bv8 == var_21) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && var_11 == state_12) && 0bv8 == state_18) && var_15 == 0bv8) && var_11 == 0bv8)) || ((((((((1bv8 == mask_SORT_1 && 4bv8 == var_21) && var_31 == state_12) && cond == 1bv32) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && 0bv8 == state_18) && var_15 == 0bv8) && var_11 == 0bv8) [2022-12-14 06:41:16,176 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:41:16,176 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:41:16,177 INFO L158 Benchmark]: Toolchain (without parser) took 26595.48ms. Allocated memory was 71.3MB in the beginning and 182.5MB in the end (delta: 111.1MB). Free memory was 51.8MB in the beginning and 149.6MB in the end (delta: -97.9MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2022-12-14 06:41:16,177 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:41:16,177 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.36ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 38.7MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 06:41:16,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.06ms. Allocated memory is still 71.3MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:41:16,177 INFO L158 Benchmark]: Boogie Preprocessor took 20.75ms. Allocated memory is still 71.3MB. Free memory was 36.4MB in the beginning and 34.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:41:16,178 INFO L158 Benchmark]: RCFGBuilder took 319.87ms. Allocated memory is still 71.3MB. Free memory was 34.7MB in the beginning and 36.3MB in the end (delta: -1.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-12-14 06:41:16,178 INFO L158 Benchmark]: TraceAbstraction took 25957.41ms. Allocated memory was 71.3MB in the beginning and 182.5MB in the end (delta: 111.1MB). Free memory was 35.7MB in the beginning and 153.8MB in the end (delta: -118.1MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. [2022-12-14 06:41:16,178 INFO L158 Benchmark]: Witness Printer took 63.56ms. Allocated memory is still 182.5MB. Free memory was 152.8MB in the beginning and 149.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:41:16,179 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.36ms. Allocated memory is still 71.3MB. Free memory was 51.6MB in the beginning and 38.7MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.06ms. Allocated memory is still 71.3MB. Free memory was 38.5MB in the beginning and 36.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.75ms. Allocated memory is still 71.3MB. Free memory was 36.4MB in the beginning and 34.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 319.87ms. Allocated memory is still 71.3MB. Free memory was 34.7MB in the beginning and 36.3MB in the end (delta: -1.6MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * TraceAbstraction took 25957.41ms. Allocated memory was 71.3MB in the beginning and 182.5MB in the end (delta: 111.1MB). Free memory was 35.7MB in the beginning and 153.8MB in the end (delta: -118.1MB). Peak memory consumption was 93.6MB. Max. memory is 16.1GB. * Witness Printer took 63.56ms. Allocated memory is still 182.5MB. Free memory was 152.8MB in the beginning and 149.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.9s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 45 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 95 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 11 mSDtfsCounter, 95 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 67 SyntacticMatches, 9 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 7.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 20, 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, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 186 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 22.8s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 42 QuantifiedInterpolants, 7420 SizeOfPredicates, 506 NumberOfNonLiveVariables, 1304 ConjunctsInSsa, 448 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/54 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 58]: Loop Invariant [2022-12-14 06:41:16,183 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,183 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,183 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,183 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,184 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-12-14 06:41:16,184 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-12-14 06:41:16,184 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,184 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_25_arg_2~0#1,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] [2022-12-14 06:41:16,185 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_40_arg_1~0#1,QUANTIFIED] Derived loop invariant: ((((((((((((((\exists ULTIMATE.start_main_~var_40_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_23) && 1bv8 == mask_SORT_1) && 4bv8 == var_21) && var_31 == state_12) && cond == 1bv32) && (\exists ULTIMATE.start_main_~var_25_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_25 && ~bvand32(~zero_extendFrom8To32(mask_SORT_5), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_25_arg_2~0#1)[7:0]))[7:0] == var_20)) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_7 : bv8 :: input_2 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet4#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && var_15 == 0bv8) && var_11 == 0bv8) && (\exists v_ULTIMATE.start_main_#t~nondet5#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet5#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == input_3)) || ((((((((((\exists ULTIMATE.start_main_~var_40_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_40_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_23) && 1bv8 == mask_SORT_1) && 0bv8 == state_16) && 4bv8 == var_21) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && var_11 == state_12) && 0bv8 == state_18) && var_15 == 0bv8) && var_11 == 0bv8)) || ((((((((1bv8 == mask_SORT_1 && 4bv8 == var_21) && var_31 == state_12) && cond == 1bv32) && 7bv8 == mask_SORT_5) && 1bv8 == var_31) && 0bv8 == state_18) && var_15 == 0bv8) && var_11 == 0bv8) RESULT: Ultimate proved your program to be correct! [2022-12-14 06:41:16,199 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_391598d6-b8c7-4295-9ba1-f1a8dbf2d92e/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE