./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS --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 cc9ca6fcf65430b35c3fcee8fb6c355a2b14d7ec23e0c438e140ab674c29f76b --- 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-8393723 [2022-11-19 08:19:47,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:19:47,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:19:47,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:19:47,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:19:47,206 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:19:47,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:19:47,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:19:47,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:19:47,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:19:47,219 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:19:47,222 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:19:47,223 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:19:47,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:19:47,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:19:47,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:19:47,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:19:47,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:19:47,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:19:47,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:19:47,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:19:47,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:19:47,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:19:47,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:19:47,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:19:47,260 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:19:47,260 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:19:47,262 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:19:47,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:19:47,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:19:47,265 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:19:47,266 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:19:47,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:19:47,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:19:47,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:19:47,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:19:47,271 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:19:47,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:19:47,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:19:47,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:19:47,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:19:47,275 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:19:47,313 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:19:47,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:19:47,319 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:19:47,319 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:19:47,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:19:47,320 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:19:47,320 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:19:47,321 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:19:47,321 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:19:47,321 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:19:47,322 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:19:47,323 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:19:47,323 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:19:47,323 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:19:47,323 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:19:47,324 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:19:47,324 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:19:47,324 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:19:47,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:19:47,325 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:19:47,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:19:47,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:19:47,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:19:47,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:19:47,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:19:47,326 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:19:47,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:19:47,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:19:47,327 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:19:47,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:47,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:19:47,328 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:19:47,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:19:47,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:19:47,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:19:47,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:19:47,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:19:47,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:19:47,330 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_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc9ca6fcf65430b35c3fcee8fb6c355a2b14d7ec23e0c438e140ab674c29f76b [2022-11-19 08:19:47,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:19:47,719 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:19:47,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:19:47,724 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:19:47,725 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:19:47,726 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2022-11-19 08:19:47,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/3bae8d72c/61ba76bde5b842a7a440992dc2164fda/FLAG0f2a135bd [2022-11-19 08:19:48,271 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:19:48,271 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2022-11-19 08:19:48,313 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/3bae8d72c/61ba76bde5b842a7a440992dc2164fda/FLAG0f2a135bd [2022-11-19 08:19:48,590 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/3bae8d72c/61ba76bde5b842a7a440992dc2164fda [2022-11-19 08:19:48,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:19:48,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:19:48,600 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:48,601 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:19:48,604 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:19:48,606 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:48" (1/1) ... [2022-11-19 08:19:48,607 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6ad5bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:48, skipping insertion in model container [2022-11-19 08:19:48,607 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:48" (1/1) ... [2022-11-19 08:19:48,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:19:48,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:19:48,840 WARN L234 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_16408254-c5f8-4aa0-b524-71117fd47e49/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1107,1120] [2022-11-19 08:19:49,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:49,021 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:19:49,034 WARN L234 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_16408254-c5f8-4aa0-b524-71117fd47e49/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1107,1120] [2022-11-19 08:19:49,152 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:49,183 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:19:49,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49 WrapperNode [2022-11-19 08:19:49,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:49,185 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:49,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:19:49,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:19:49,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,314 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 649 [2022-11-19 08:19:49,315 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:49,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:19:49,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:19:49,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:19:49,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,360 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:19:49,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:19:49,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:19:49,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:19:49,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (1/1) ... [2022-11-19 08:19:49,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:49,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:49,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:19:49,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:19:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:19:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:19:49,731 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:19:49,734 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:19:50,868 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:19:52,277 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:19:52,277 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:19:52,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:52 BoogieIcfgContainer [2022-11-19 08:19:52,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:19:52,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:19:52,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:19:52,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:19:52,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:19:48" (1/3) ... [2022-11-19 08:19:52,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62454e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:52, skipping insertion in model container [2022-11-19 08:19:52,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:49" (2/3) ... [2022-11-19 08:19:52,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62454e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:52, skipping insertion in model container [2022-11-19 08:19:52,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:52" (3/3) ... [2022-11-19 08:19:52,293 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Ibuf.c [2022-11-19 08:19:52,314 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:19:52,315 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:19:52,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:19:52,404 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;@b6c41d5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:19:52,405 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:19:52,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:52,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 08:19:52,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:52,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 08:19:52,417 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:52,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:52,424 INFO L85 PathProgramCache]: Analyzing trace with hash 9326346, now seen corresponding path program 1 times [2022-11-19 08:19:52,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:19:52,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250338197] [2022-11-19 08:19:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:52,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:19:52,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:19:52,705 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-19 08:19:52,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-19 08:19:52,804 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-19 08:19:52,806 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-19 08:19:52,808 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:19:52,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:19:52,815 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-19 08:19:52,820 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:19:52,840 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-19 08:19:52,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:19:52 BoogieIcfgContainer [2022-11-19 08:19:52,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:19:52,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:19:52,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:19:52,851 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:19:52,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:52" (3/4) ... [2022-11-19 08:19:52,856 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-19 08:19:52,856 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:19:52,859 INFO L158 Benchmark]: Toolchain (without parser) took 4262.84ms. Allocated memory was 83.9MB in the beginning and 188.7MB in the end (delta: 104.9MB). Free memory was 44.7MB in the beginning and 78.9MB in the end (delta: -34.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2022-11-19 08:19:52,860 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:19:52,861 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.47ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 75.2MB in the end (delta: -30.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:19:52,862 INFO L158 Benchmark]: Boogie Procedure Inliner took 130.45ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 68.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:19:52,867 INFO L158 Benchmark]: Boogie Preprocessor took 66.80ms. Allocated memory is still 111.1MB. Free memory was 68.4MB in the beginning and 64.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:19:52,868 INFO L158 Benchmark]: RCFGBuilder took 2899.43ms. Allocated memory was 111.1MB in the beginning and 188.7MB in the end (delta: 77.6MB). Free memory was 64.3MB in the beginning and 107.2MB in the end (delta: -42.9MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. [2022-11-19 08:19:52,869 INFO L158 Benchmark]: TraceAbstraction took 563.74ms. Allocated memory is still 188.7MB. Free memory was 106.2MB in the beginning and 78.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-19 08:19:52,870 INFO L158 Benchmark]: Witness Printer took 6.12ms. Allocated memory is still 188.7MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:19:52,878 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory is still 62.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.47ms. Allocated memory was 83.9MB in the beginning and 111.1MB in the end (delta: 27.3MB). Free memory was 44.5MB in the beginning and 75.2MB in the end (delta: -30.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 130.45ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 68.4MB in the end (delta: 6.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.80ms. Allocated memory is still 111.1MB. Free memory was 68.4MB in the beginning and 64.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2899.43ms. Allocated memory was 111.1MB in the beginning and 188.7MB in the end (delta: 77.6MB). Free memory was 64.3MB in the beginning and 107.2MB in the end (delta: -42.9MB). Peak memory consumption was 96.5MB. Max. memory is 16.1GB. * TraceAbstraction took 563.74ms. Allocated memory is still 188.7MB. Free memory was 106.2MB in the beginning and 78.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 6.12ms. Allocated memory is still 188.7MB. Free memory is still 78.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 68, overapproximation of bitwiseComplement at line 65, overapproximation of bitwiseAnd at line 75. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 2); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (2 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L34] const SORT_5 var_9 = 0; [L35] const SORT_1 var_26 = 1; [L36] const SORT_1 var_140 = 0; [L38] SORT_1 input_2; [L39] SORT_3 input_4; [L40] SORT_5 input_6; [L41] SORT_3 input_7; [L42] SORT_5 input_8; [L44] SORT_5 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L45] SORT_5 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L47] SORT_5 init_11_arg_1 = var_9; [L48] state_10 = init_11_arg_1 [L49] SORT_5 init_14_arg_1 = var_9; [L50] state_13 = init_14_arg_1 VAL [init_11_arg_1=0, init_14_arg_1=0, mask_SORT_1=1, mask_SORT_3=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_3=2, msb_SORT_5=4, state_10=0, state_13=0, var_140=0, var_26=1, var_9=0] [L53] input_2 = __VERIFIER_nondet_uchar() [L54] input_4 = __VERIFIER_nondet_uchar() [L55] input_6 = __VERIFIER_nondet_uchar() [L56] input_7 = __VERIFIER_nondet_uchar() [L57] input_8 = __VERIFIER_nondet_uchar() [L60] SORT_5 var_12_arg_0 = state_10; [L61] SORT_1 var_12 = var_12_arg_0 >> 0; [L62] SORT_5 var_15_arg_0 = state_13; [L63] SORT_1 var_15 = var_15_arg_0 >> 0; [L64] SORT_1 var_16_arg_0 = var_15; [L65] SORT_1 var_16 = ~var_16_arg_0; [L66] SORT_1 var_17_arg_0 = var_12; [L67] SORT_1 var_17_arg_1 = var_16; [L68] SORT_1 var_17 = var_17_arg_0 | var_17_arg_1; [L69] SORT_5 var_18_arg_0 = state_10; [L70] SORT_1 var_18 = var_18_arg_0 >> 1; [L71] SORT_1 var_19_arg_0 = var_18; [L72] SORT_1 var_19 = ~var_19_arg_0; [L73] SORT_1 var_20_arg_0 = var_12; [L74] SORT_1 var_20_arg_1 = var_19; [L75] SORT_1 var_20 = var_20_arg_0 & var_20_arg_1; [L76] SORT_1 var_21_arg_0 = var_20; [L77] SORT_1 var_21 = ~var_21_arg_0; [L78] SORT_1 var_22_arg_0 = var_21; [L79] SORT_1 var_22_arg_1 = var_15; [L80] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L81] SORT_1 var_23_arg_0 = var_17; [L82] SORT_1 var_23_arg_1 = var_22; [L83] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L84] SORT_1 var_27_arg_0 = var_23; [L85] SORT_1 var_27 = ~var_27_arg_0; [L86] SORT_1 var_28_arg_0 = var_26; [L87] SORT_1 var_28_arg_1 = var_27; [L88] SORT_1 var_28 = var_28_arg_0 & var_28_arg_1; [L89] var_28 = var_28 & mask_SORT_1 [L90] SORT_1 bad_29_arg_0 = var_28; [L91] CALL __VERIFIER_assert(!(bad_29_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: 0.4s, 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-19 08:19:52,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS --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 cc9ca6fcf65430b35c3fcee8fb6c355a2b14d7ec23e0c438e140ab674c29f76b --- 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-8393723 [2022-11-19 08:19:55,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:19:55,333 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:19:55,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:19:55,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:19:55,354 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:19:55,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:19:55,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:19:55,359 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:19:55,360 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:19:55,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:19:55,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:19:55,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:19:55,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:19:55,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:19:55,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:19:55,367 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:19:55,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:19:55,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:19:55,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:19:55,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:19:55,374 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:19:55,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:19:55,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:19:55,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:19:55,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:19:55,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:19:55,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:19:55,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:19:55,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:19:55,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:19:55,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:19:55,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:19:55,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:19:55,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:19:55,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:19:55,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:19:55,389 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:19:55,389 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:19:55,390 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:19:55,391 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:19:55,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-19 08:19:55,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:19:55,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:19:55,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:19:55,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:19:55,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:19:55,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:19:55,418 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:19:55,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:19:55,419 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:19:55,419 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:19:55,419 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:19:55,419 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:19:55,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:19:55,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:19:55,421 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:19:55,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:19:55,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:19:55,421 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-19 08:19:55,422 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-19 08:19:55,422 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-19 08:19:55,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:19:55,422 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:19:55,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:19:55,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:19:55,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-19 08:19:55,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:19:55,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:55,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:19:55,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:19:55,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:19:55,425 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-19 08:19:55,425 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-19 08:19:55,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:19:55,425 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:19:55,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-19 08:19:55,426 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_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc9ca6fcf65430b35c3fcee8fb6c355a2b14d7ec23e0c438e140ab674c29f76b [2022-11-19 08:19:55,838 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:19:55,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:19:55,871 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:19:55,873 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:19:55,873 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:19:55,875 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2022-11-19 08:19:55,957 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/3f482b102/de607e7dec304283a4a6ce530ce988cf/FLAGf9d91fc04 [2022-11-19 08:19:56,553 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:19:56,553 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2022-11-19 08:19:56,567 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/3f482b102/de607e7dec304283a4a6ce530ce988cf/FLAGf9d91fc04 [2022-11-19 08:19:56,853 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/data/3f482b102/de607e7dec304283a4a6ce530ce988cf [2022-11-19 08:19:56,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:19:56,858 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:19:56,859 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:56,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:19:56,865 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:19:56,866 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:56" (1/1) ... [2022-11-19 08:19:56,867 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@188553c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:56, skipping insertion in model container [2022-11-19 08:19:56,867 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:19:56" (1/1) ... [2022-11-19 08:19:56,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:19:56,934 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:19:57,129 WARN L234 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_16408254-c5f8-4aa0-b524-71117fd47e49/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1107,1120] [2022-11-19 08:19:57,325 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:57,329 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:19:57,339 WARN L234 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_16408254-c5f8-4aa0-b524-71117fd47e49/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1107,1120] [2022-11-19 08:19:57,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:19:57,429 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:19:57,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57 WrapperNode [2022-11-19 08:19:57,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:19:57,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:57,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:19:57,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:19:57,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,516 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 509 [2022-11-19 08:19:57,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:19:57,517 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:19:57,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:19:57,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:19:57,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,596 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,605 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:19:57,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:19:57,607 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:19:57,607 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:19:57,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (1/1) ... [2022-11-19 08:19:57,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:19:57,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:19:57,659 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:19:57,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:19:57,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:19:57,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:19:58,007 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:19:58,009 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:19:58,740 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:19:58,746 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:19:58,747 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-19 08:19:58,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:58 BoogieIcfgContainer [2022-11-19 08:19:58,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:19:58,751 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:19:58,752 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:19:58,755 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:19:58,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:19:56" (1/3) ... [2022-11-19 08:19:58,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4f0501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:58, skipping insertion in model container [2022-11-19 08:19:58,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:19:57" (2/3) ... [2022-11-19 08:19:58,757 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c4f0501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:19:58, skipping insertion in model container [2022-11-19 08:19:58,757 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:58" (3/3) ... [2022-11-19 08:19:58,758 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Ibuf.c [2022-11-19 08:19:58,777 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:19:58,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:19:58,828 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:19:58,837 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;@5b54a9a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:19:58,837 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:19:58,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:58,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-19 08:19:58,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:58,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-19 08:19:58,852 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:58,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:58,859 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-19 08:19:58,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:19:58,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1837921254] [2022-11-19 08:19:58,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:58,871 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:19:58,871 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:19:58,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:19:58,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-19 08:19:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:19:59,104 WARN L261 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-19 08:19:59,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:19:59,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:19:59,337 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:19:59,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:19:59,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1837921254] [2022-11-19 08:19:59,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1837921254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:19:59,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:19:59,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:19:59,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804484361] [2022-11-19 08:19:59,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:19:59,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:19:59,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:19:59,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:19:59,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:19:59,389 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:59,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:19:59,488 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-19 08:19:59,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 08:19:59,491 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-19 08:19:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:19:59,498 INFO L225 Difference]: With dead ends: 20 [2022-11-19 08:19:59,499 INFO L226 Difference]: Without dead ends: 11 [2022-11-19 08:19:59,501 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 [2022-11-19 08:19:59,505 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:19:59,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 08:19:59,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-19 08:19:59,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-19 08:19:59,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:59,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-19 08:19:59,540 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-19 08:19:59,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:19:59,541 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-19 08:19:59,541 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:19:59,541 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-19 08:19:59,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:19:59,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:19:59,542 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-19 08:19:59,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:19:59,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:19:59,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:19:59,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:19:59,756 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-19 08:19:59,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:19:59,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [366113635] [2022-11-19 08:19:59,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:19:59,759 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:19:59,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:19:59,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:19:59,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-19 08:20:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:00,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-19 08:20:00,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:00,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:04,078 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:04,078 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:20:04,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [366113635] [2022-11-19 08:20:04,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [366113635] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:04,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1828774] [2022-11-19 08:20:04,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:20:04,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:20:04,087 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:20:04,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-19 08:20:04,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:04,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 76 conjunts are in the unsatisfiable core [2022-11-19 08:20:04,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:04,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:04,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:05,742 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:05,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1828774] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:05,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682434323] [2022-11-19 08:20:05,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:20:05,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:05,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:05,746 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:20:05,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:20:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:20:06,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-19 08:20:06,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:06,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:09,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:20:09,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682434323] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:09,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:20:09,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 7, 7] total 12 [2022-11-19 08:20:09,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889574397] [2022-11-19 08:20:09,314 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:20:09,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:20:09,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:20:09,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:20:09,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=100, Unknown=2, NotChecked=0, Total=132 [2022-11-19 08:20:09,318 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:09,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:09,610 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-19 08:20:09,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 08:20:09,611 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-19 08:20:09,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:09,612 INFO L225 Difference]: With dead ends: 16 [2022-11-19 08:20:09,612 INFO L226 Difference]: Without dead ends: 14 [2022-11-19 08:20:09,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=59, Invalid=149, Unknown=2, NotChecked=0, Total=210 [2022-11-19 08:20:09,614 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 14 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:09,614 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 20 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 14 Unchecked, 0.1s Time] [2022-11-19 08:20:09,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-19 08:20:09,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-19 08:20:09,637 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) [2022-11-19 08:20:09,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-19 08:20:09,638 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-19 08:20:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:09,639 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-19 08:20:09,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:09,639 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-19 08:20:09,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 08:20:09,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:20:09,640 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-19 08:20:09,662 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/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 [2022-11-19 08:20:09,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:10,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:10,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/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_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt [2022-11-19 08:20:10,251 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:20:10,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:20:10,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-19 08:20:10,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-19 08:20:10,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [960805247] [2022-11-19 08:20:10,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:20:10,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:10,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat [2022-11-19 08:20:10,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-19 08:20:10,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-19 08:20:10,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:20:10,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:20:10,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-19 08:20:10,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:10,900 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:20:10,900 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:11,265 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:20:11,265 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-19 08:20:11,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [960805247] [2022-11-19 08:20:11,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [960805247] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:11,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [526091205] [2022-11-19 08:20:11,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:20:11,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-19 08:20:11,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 [2022-11-19 08:20:11,271 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-19 08:20:11,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-19 08:20:12,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:20:12,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:20:12,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 62 conjunts are in the unsatisfiable core [2022-11-19 08:20:12,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:20:12,219 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:12,618 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-19 08:20:12,618 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [526091205] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:12,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440974985] [2022-11-19 08:20:12,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-19 08:20:12,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:20:12,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:20:12,620 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:20:12,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-19 08:20:13,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-19 08:20:13,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-19 08:20:13,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 957 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-19 08:20:13,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:20:16,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:20:16,072 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:20:22,690 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:20:22,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440974985] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:20:22,690 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-19 08:20:22,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 12 [2022-11-19 08:20:22,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810065476] [2022-11-19 08:20:22,691 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-19 08:20:22,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-19 08:20:22,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-19 08:20:22,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-19 08:20:22,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=95, Unknown=4, NotChecked=0, Total=132 [2022-11-19 08:20:22,693 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:22,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:20:22,868 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-11-19 08:20:22,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 08:20:22,870 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-19 08:20:22,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:20:22,870 INFO L225 Difference]: With dead ends: 12 [2022-11-19 08:20:22,870 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 08:20:22,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=55, Invalid=123, Unknown=4, NotChecked=0, Total=182 [2022-11-19 08:20:22,872 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:20:22,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-11-19 08:20:22,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 08:20:22,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 08:20:22,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:22,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 08:20:22,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-19 08:20:22,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:20:22,874 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 08:20:22,874 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:20:22,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 08:20:22,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 08:20:22,877 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 08:20:22,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:23,088 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:23,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-19 08:20:23,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-19 08:20:23,485 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 08:20:25,010 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 08:20:25,011 INFO L895 garLoopResultBuilder]: At program point L527(lines 22 528) the Hoare annotation is: false [2022-11-19 08:20:25,011 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-19 08:20:25,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-19 08:20:25,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-19 08:20:25,011 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-19 08:20:25,012 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-19 08:20:25,012 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-19 08:20:25,012 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-19 08:20:25,013 INFO L895 garLoopResultBuilder]: At program point L51-2(lines 51 526) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~mask_SORT_3~0#1| (_ bv3 8)))) (or (and .cse0 (= (_ bv0 8) |ULTIMATE.start_main_~state_10~0#1|) (= |ULTIMATE.start_main_~state_10~0#1| |ULTIMATE.start_main_~state_13~0#1|) .cse1) (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 (exists ((|ULTIMATE.start_main_~var_208_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_207_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_167_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_153_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_190_arg_0~0#1| (_ BitVec 8)) (|ULTIMATE.start_main_~var_195_arg_0~0#1| (_ BitVec 8))) (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_167_arg_0~0#1|)))) (.cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_153_arg_0~0#1|)))) (.cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (and (= ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv3 32) ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl .cse2 (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse3 .cse4))))))))) (bvshl ((_ zero_extend 24) |ULTIMATE.start_main_~var_190_arg_0~0#1|) (_ bv2 32)))) |ULTIMATE.start_main_~state_10~0#1|) (= ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv3 32) ((_ zero_extend 24) ((_ extract 7 0) (bvor (bvshl ((_ zero_extend 24) |ULTIMATE.start_main_~var_207_arg_0~0#1|) (_ bv1 32)) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse2))) ((_ zero_extend 24) |ULTIMATE.start_main_~var_195_arg_0~0#1|)))) .cse3))) .cse4))))))))) (bvshl ((_ zero_extend 24) |ULTIMATE.start_main_~var_208_arg_0~0#1|) (_ bv2 32)))) |ULTIMATE.start_main_~state_13~0#1|))))))) [2022-11-19 08:20:25,013 INFO L899 garLoopResultBuilder]: For program point L51-3(lines 51 526) no Hoare annotation was computed. [2022-11-19 08:20:25,017 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-19 08:20:25,019 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 08:20:25,029 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,030 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,031 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_190_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,031 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_207_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,031 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,032 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_195_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,032 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,032 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_208_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,038 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,039 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,039 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_190_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,039 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_207_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,039 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,040 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_195_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,040 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,040 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_208_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 08:20:25 BoogieIcfgContainer [2022-11-19 08:20:25,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 08:20:25,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 08:20:25,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 08:20:25,044 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 08:20:25,044 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:19:58" (3/4) ... [2022-11-19 08:20:25,047 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 08:20:25,061 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-19 08:20:25,062 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-19 08:20:25,063 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 08:20:25,089 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((1bv8 == mask_SORT_1 && 0bv8 == state_10) && state_10 == state_13) && mask_SORT_3 == 3bv8) || (((1bv8 == mask_SORT_1 && cond == 1bv32) && mask_SORT_3 == 3bv8) && (\exists ULTIMATE.start_main_~var_208_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_207_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_167_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_153_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_190_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_195_arg_0~0#1 : bv8 :: ~bvor32(~zero_extendFrom8To32(~bvand32(3bv32, ~zero_extendFrom8To32(~bvor32(~bvshl32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_167_arg_0~0#1)[7:0]), 1bv32), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_153_arg_0~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))[7:0]))[7:0]), ~bvshl32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_190_arg_0~0#1), 2bv32))[7:0] == state_10 && ~bvor32(~zero_extendFrom8To32(~bvand32(3bv32, ~zero_extendFrom8To32(~bvor32(~bvshl32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_207_arg_0~0#1), 1bv32), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvor32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_167_arg_0~0#1)[7:0]))[7:0]), ~zero_extendFrom8To32(ULTIMATE.start_main_~var_195_arg_0~0#1))[7:0]), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_153_arg_0~0#1)[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))[7:0]))[7:0]), ~bvshl32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_208_arg_0~0#1), 2bv32))[7:0] == state_13)) [2022-11-19 08:20:25,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 08:20:25,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 08:20:25,145 INFO L158 Benchmark]: Toolchain (without parser) took 28287.23ms. Allocated memory was 75.5MB in the beginning and 237.0MB in the end (delta: 161.5MB). Free memory was 58.8MB in the beginning and 92.6MB in the end (delta: -33.8MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2022-11-19 08:20:25,145 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 08:20:25,146 INFO L158 Benchmark]: CACSL2BoogieTranslator took 570.77ms. Allocated memory is still 75.5MB. Free memory was 58.5MB in the beginning and 48.7MB in the end (delta: 9.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-11-19 08:20:25,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.91ms. Allocated memory is still 75.5MB. Free memory was 48.7MB in the beginning and 44.0MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 08:20:25,146 INFO L158 Benchmark]: Boogie Preprocessor took 88.29ms. Allocated memory is still 75.5MB. Free memory was 44.0MB in the beginning and 41.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 08:20:25,147 INFO L158 Benchmark]: RCFGBuilder took 1142.66ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 40.7MB in the beginning and 60.1MB in the end (delta: -19.3MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-11-19 08:20:25,147 INFO L158 Benchmark]: TraceAbstraction took 26291.19ms. Allocated memory was 104.9MB in the beginning and 237.0MB in the end (delta: 132.1MB). Free memory was 59.5MB in the beginning and 99.9MB in the end (delta: -40.4MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. [2022-11-19 08:20:25,148 INFO L158 Benchmark]: Witness Printer took 101.15ms. Allocated memory is still 237.0MB. Free memory was 99.9MB in the beginning and 92.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 08:20:25,150 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 75.5MB. Free memory is still 57.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 570.77ms. Allocated memory is still 75.5MB. Free memory was 58.5MB in the beginning and 48.7MB in the end (delta: 9.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.91ms. Allocated memory is still 75.5MB. Free memory was 48.7MB in the beginning and 44.0MB in the end (delta: 4.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.29ms. Allocated memory is still 75.5MB. Free memory was 44.0MB in the beginning and 41.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1142.66ms. Allocated memory was 75.5MB in the beginning and 104.9MB in the end (delta: 29.4MB). Free memory was 40.7MB in the beginning and 60.1MB in the end (delta: -19.3MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. * TraceAbstraction took 26291.19ms. Allocated memory was 104.9MB in the beginning and 237.0MB in the end (delta: 132.1MB). Free memory was 59.5MB in the beginning and 99.9MB in the end (delta: -40.4MB). Peak memory consumption was 92.3MB. Max. memory is 16.1GB. * Witness Printer took 101.15ms. Allocated memory is still 237.0MB. Free memory was 99.9MB in the beginning and 92.6MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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_167_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_190_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_207_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_195_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_208_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_190_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_207_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_195_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_208_arg_0~0#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: 26.2s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 19 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 25 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 11 mSDtfsCounter, 25 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 77 SyntacticMatches, 7 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 17.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 19, 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, 100 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 179 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.7s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 19.4s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 39 QuantifiedInterpolants, 7826 SizeOfPredicates, 504 NumberOfNonLiveVariables, 4444 ConjunctsInSsa, 453 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 17/54 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: 51]: Loop Invariant [2022-11-19 08:20:25,161 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,161 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,162 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_190_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,162 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_207_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,162 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,162 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_195_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,163 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,163 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_208_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,164 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_190_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_207_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,165 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_167_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,166 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_195_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,166 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_153_arg_0~0#1,QUANTIFIED] [2022-11-19 08:20:25,166 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_208_arg_0~0#1,QUANTIFIED] Derived loop invariant: (((1bv8 == mask_SORT_1 && 0bv8 == state_10) && state_10 == state_13) && mask_SORT_3 == 3bv8) || (((1bv8 == mask_SORT_1 && cond == 1bv32) && mask_SORT_3 == 3bv8) && (\exists ULTIMATE.start_main_~var_208_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_207_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_167_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_153_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_190_arg_0~0#1 : bv8, ULTIMATE.start_main_~var_195_arg_0~0#1 : bv8 :: ~bvor32(~zero_extendFrom8To32(~bvand32(3bv32, ~zero_extendFrom8To32(~bvor32(~bvshl32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_167_arg_0~0#1)[7:0]), 1bv32), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_153_arg_0~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))[7:0]))[7:0]), ~bvshl32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_190_arg_0~0#1), 2bv32))[7:0] == state_10 && ~bvor32(~zero_extendFrom8To32(~bvand32(3bv32, ~zero_extendFrom8To32(~bvor32(~bvshl32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_207_arg_0~0#1), 1bv32), ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~bvor32(~zero_extendFrom8To32(~bvnot32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_167_arg_0~0#1)[7:0]))[7:0]), ~zero_extendFrom8To32(ULTIMATE.start_main_~var_195_arg_0~0#1))[7:0]), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_153_arg_0~0#1)[7:0]))[7:0]), ~zero_extendFrom8To32(mask_SORT_1))[7:0]))[7:0]))[7:0]), ~bvshl32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_208_arg_0~0#1), 2bv32))[7:0] == state_13)) RESULT: Ultimate proved your program to be correct! [2022-11-19 08:20:25,191 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16408254-c5f8-4aa0-b524-71117fd47e49/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE