./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur --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 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 --- 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-38b53e6 [2022-11-26 01:03:50,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:03:50,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:03:50,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:03:50,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:03:50,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:03:50,270 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:03:50,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:03:50,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:03:50,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:03:50,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:03:50,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:03:50,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:03:50,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:03:50,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:03:50,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:03:50,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:03:50,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:03:50,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:03:50,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:03:50,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:03:50,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:03:50,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:03:50,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:03:50,311 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:03:50,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:03:50,312 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:03:50,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:03:50,313 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:03:50,314 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:03:50,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:03:50,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:03:50,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:03:50,325 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:03:50,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:03:50,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:03:50,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:03:50,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:03:50,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:03:50,333 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:03:50,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:03:50,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 01:03:50,374 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:03:50,374 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:03:50,375 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:03:50,375 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:03:50,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:03:50,376 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:03:50,376 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:03:50,376 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:03:50,377 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:03:50,377 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 01:03:50,377 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:03:50,377 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:03:50,378 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 01:03:50,378 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 01:03:50,378 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:03:50,378 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 01:03:50,378 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 01:03:50,379 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 01:03:50,380 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:03:50,380 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 01:03:50,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:03:50,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:03:50,380 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:03:50,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:03:50,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:03:50,381 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:03:50,381 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:03:50,382 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:03:50,382 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:03:50,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:03:50,382 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:03:50,383 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 01:03:50,383 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:03:50,383 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:03:50,383 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 01:03:50,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 01:03:50,384 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:03:50,384 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:03:50,384 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_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 [2022-11-26 01:03:50,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:03:50,748 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:03:50,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:03:50,752 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:03:50,752 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:03:50,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-26 01:03:53,870 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:03:54,105 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:03:54,106 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-26 01:03:54,116 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data/d3165405d/9d99b9184cae47518c6fddeb866a6b98/FLAGa122abbf9 [2022-11-26 01:03:54,137 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data/d3165405d/9d99b9184cae47518c6fddeb866a6b98 [2022-11-26 01:03:54,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:03:54,144 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:03:54,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:03:54,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:03:54,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:03:54,153 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c737380 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54, skipping insertion in model container [2022-11-26 01:03:54,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,163 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:03:54,218 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:03:54,367 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-26 01:03:54,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:03:54,516 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:03:54,526 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-26 01:03:54,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:03:54,614 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:03:54,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54 WrapperNode [2022-11-26 01:03:54,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:03:54,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:03:54,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:03:54,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:03:54,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,704 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-26 01:03:54,704 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:03:54,705 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:03:54,705 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:03:54,706 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:03:54,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,785 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:03:54,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:03:54,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:03:54,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:03:54,814 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (1/1) ... [2022-11-26 01:03:54,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:03:54,833 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:03:54,850 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:03:54,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:03:54,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:03:54,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:03:55,149 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:03:55,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:04:02,709 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:04:02,728 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:04:02,728 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:04:02,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:02 BoogieIcfgContainer [2022-11-26 01:04:02,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:04:02,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:04:02,734 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:04:02,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:04:02,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:03:54" (1/3) ... [2022-11-26 01:04:02,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735da20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:02, skipping insertion in model container [2022-11-26 01:04:02,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:03:54" (2/3) ... [2022-11-26 01:04:02,741 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@735da20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:02, skipping insertion in model container [2022-11-26 01:04:02,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:02" (3/3) ... [2022-11-26 01:04:02,744 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-26 01:04:02,765 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:04:02,766 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:04:02,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:04:02,833 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;@4ab59208, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:04:02,834 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 01:04:02,839 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) [2022-11-26 01:04:02,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 01:04:02,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:02,848 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 01:04:02,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:04:02,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:02,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-26 01:04:02,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 01:04:02,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213584449] [2022-11-26 01:04:02,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:02,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 01:04:03,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:04:03,171 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 01:04:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 01:04:03,368 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 01:04:03,372 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 01:04:03,374 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 01:04:03,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 01:04:03,382 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 01:04:03,386 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 01:04:03,423 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-26 01:04:03,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 01:04:03 BoogieIcfgContainer [2022-11-26 01:04:03,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 01:04:03,434 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 01:04:03,434 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 01:04:03,434 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 01:04:03,435 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:02" (3/4) ... [2022-11-26 01:04:03,443 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 01:04:03,443 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 01:04:03,445 INFO L158 Benchmark]: Toolchain (without parser) took 9300.97ms. Allocated memory was 157.3MB in the beginning and 385.9MB in the end (delta: 228.6MB). Free memory was 112.3MB in the beginning and 234.6MB in the end (delta: -122.3MB). Peak memory consumption was 107.9MB. Max. memory is 16.1GB. [2022-11-26 01:04:03,446 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 157.3MB. Free memory was 98.4MB in the beginning and 98.2MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:04:03,447 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.46ms. Allocated memory is still 157.3MB. Free memory was 112.3MB in the beginning and 90.7MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 01:04:03,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.57ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 84.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-26 01:04:03,452 INFO L158 Benchmark]: Boogie Preprocessor took 97.07ms. Allocated memory is still 157.3MB. Free memory was 84.5MB in the beginning and 80.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:04:03,453 INFO L158 Benchmark]: RCFGBuilder took 7927.79ms. Allocated memory was 157.3MB in the beginning and 385.9MB in the end (delta: 228.6MB). Free memory was 80.8MB in the beginning and 269.2MB in the end (delta: -188.4MB). Peak memory consumption was 194.6MB. Max. memory is 16.1GB. [2022-11-26 01:04:03,453 INFO L158 Benchmark]: TraceAbstraction took 699.78ms. Allocated memory is still 385.9MB. Free memory was 269.2MB in the beginning and 235.6MB in the end (delta: 33.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-26 01:04:03,454 INFO L158 Benchmark]: Witness Printer took 10.30ms. Allocated memory is still 385.9MB. Free memory is still 234.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:04:03,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 157.3MB. Free memory was 98.4MB in the beginning and 98.2MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.46ms. Allocated memory is still 157.3MB. Free memory was 112.3MB in the beginning and 90.7MB in the end (delta: 21.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.57ms. Allocated memory is still 157.3MB. Free memory was 90.7MB in the beginning and 84.5MB in the end (delta: 6.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.07ms. Allocated memory is still 157.3MB. Free memory was 84.5MB in the beginning and 80.8MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 7927.79ms. Allocated memory was 157.3MB in the beginning and 385.9MB in the end (delta: 228.6MB). Free memory was 80.8MB in the beginning and 269.2MB in the end (delta: -188.4MB). Peak memory consumption was 194.6MB. Max. memory is 16.1GB. * TraceAbstraction took 699.78ms. Allocated memory is still 385.9MB. Free memory was 269.2MB in the beginning and 235.6MB in the end (delta: 33.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 10.30ms. Allocated memory is still 385.9MB. Free memory is still 234.6MB. 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 104, overapproximation of shiftRight at line 108, overapproximation of bitwiseAnd at line 86, overapproximation of bitwiseComplement at line 106, overapproximation of bitwiseXor at line 101. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 5); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (5 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_3 var_5 = 0; [L38] const SORT_1 var_12 = 0; [L39] const SORT_4 var_27 = 749; [L40] const SORT_3 var_28 = 1; [L41] const SORT_3 var_30 = 0; [L42] const SORT_4 var_32 = 16; [L43] const SORT_4 var_79 = 400; [L45] SORT_1 input_37; [L46] SORT_1 input_38; [L47] SORT_1 input_43; [L48] SORT_1 input_48; [L49] SORT_1 input_52; [L50] SORT_1 input_57; [L52] SORT_3 state_6 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L53] SORT_3 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L54] SORT_3 state_10 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L55] SORT_1 state_13 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L57] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L58] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L59] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L60] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L61] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L63] SORT_3 init_7_arg_1 = var_5; [L64] state_6 = init_7_arg_1 [L65] SORT_3 init_9_arg_1 = var_5; [L66] state_8 = init_9_arg_1 [L67] SORT_3 init_11_arg_1 = var_5; [L68] state_10 = init_11_arg_1 [L69] SORT_1 init_14_arg_1 = var_12; [L70] state_13 = init_14_arg_1 [L71] SORT_1 init_16_arg_1 = var_12; [L72] state_15 = init_16_arg_1 [L73] SORT_1 init_18_arg_1 = var_12; [L74] state_17 = init_18_arg_1 [L75] SORT_1 init_20_arg_1 = var_12; [L76] state_19 = init_20_arg_1 [L77] SORT_1 init_22_arg_1 = var_12; [L78] state_21 = init_22_arg_1 [L79] SORT_1 init_24_arg_1 = var_12; [L80] state_23 = init_24_arg_1 [L81] SORT_1 init_26_arg_1 = var_12; [L82] state_25 = init_26_arg_1 VAL [init_11_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=31, mask_SORT_3=65535, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=16, msb_SORT_3=32768, msb_SORT_4=2147483648, state_10=0, state_13=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_6=0, state_8=0, var_12=0, var_27=749, var_28=1, var_30=0, var_32=16, var_5=0, var_79=400] [L85] input_37 = __VERIFIER_nondet_uchar() [L86] input_37 = input_37 & mask_SORT_1 [L87] input_38 = __VERIFIER_nondet_uchar() [L88] input_38 = input_38 & mask_SORT_1 [L89] input_43 = __VERIFIER_nondet_uchar() [L90] input_43 = input_43 & mask_SORT_1 [L91] input_48 = __VERIFIER_nondet_uchar() [L92] input_48 = input_48 & mask_SORT_1 [L93] input_52 = __VERIFIER_nondet_uchar() [L94] input_52 = input_52 & mask_SORT_1 [L95] input_57 = __VERIFIER_nondet_uchar() [L96] input_57 = input_57 & mask_SORT_1 [L99] SORT_3 var_29_arg_0 = var_28; [L100] SORT_3 var_29_arg_1 = state_6; [L101] SORT_3 var_29 = var_29_arg_0 ^ var_29_arg_1; [L102] SORT_3 var_31_arg_0 = var_29; [L103] SORT_3 var_31_arg_1 = var_30; [L104] SORT_4 var_31 = ((SORT_4)var_31_arg_0 << 16) | var_31_arg_1; [L105] SORT_4 var_33_arg_0 = var_31; [L106] var_33_arg_0 = (var_33_arg_0 & msb_SORT_4) ? (var_33_arg_0 | ~mask_SORT_4) : (var_33_arg_0 & mask_SORT_4) [L107] SORT_4 var_33_arg_1 = var_32; [L108] SORT_4 var_33 = (int)var_33_arg_0 >> var_33_arg_1; [L109] var_33 = (var_33_arg_0 & msb_SORT_4) ? (var_33 | ~(mask_SORT_4 >> var_33_arg_1)) : var_33 [L110] var_33 = var_33 & mask_SORT_4 [L111] SORT_4 var_34_arg_0 = var_27; [L112] SORT_4 var_34_arg_1 = var_33; [L113] SORT_1 var_34 = var_34_arg_0 == var_34_arg_1; [L114] SORT_1 var_35_arg_0 = ~state_25; [L115] var_35_arg_0 = var_35_arg_0 & mask_SORT_1 [L116] SORT_1 var_35_arg_1 = var_34; [L117] SORT_1 var_35 = var_35_arg_0 & var_35_arg_1; [L118] var_35 = var_35 & mask_SORT_1 [L119] SORT_1 bad_36_arg_0 = var_35; [L120] CALL __VERIFIER_assert(!(bad_36_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: 0.6s, 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 [2022-11-26 01:04:03,491 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur --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 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 --- 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-38b53e6 [2022-11-26 01:04:05,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 01:04:05,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 01:04:05,958 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 01:04:05,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 01:04:05,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 01:04:05,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 01:04:05,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 01:04:05,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 01:04:05,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 01:04:05,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 01:04:05,984 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 01:04:05,984 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 01:04:05,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 01:04:05,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 01:04:05,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 01:04:05,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 01:04:05,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 01:04:05,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 01:04:06,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 01:04:06,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 01:04:06,010 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 01:04:06,011 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 01:04:06,012 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 01:04:06,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 01:04:06,021 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 01:04:06,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 01:04:06,023 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 01:04:06,024 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 01:04:06,025 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 01:04:06,026 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 01:04:06,027 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 01:04:06,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 01:04:06,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 01:04:06,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 01:04:06,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 01:04:06,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 01:04:06,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 01:04:06,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 01:04:06,047 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 01:04:06,047 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 01:04:06,048 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-26 01:04:06,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 01:04:06,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 01:04:06,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 01:04:06,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 01:04:06,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 01:04:06,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 01:04:06,093 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 01:04:06,094 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 01:04:06,094 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 01:04:06,094 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 01:04:06,095 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 01:04:06,096 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 01:04:06,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 01:04:06,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 01:04:06,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 01:04:06,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 01:04:06,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 01:04:06,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 01:04:06,098 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 01:04:06,098 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 01:04:06,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 01:04:06,099 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 01:04:06,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 01:04:06,100 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 01:04:06,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 01:04:06,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 01:04:06,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:06,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 01:04:06,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 01:04:06,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 01:04:06,101 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 01:04:06,102 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 01:04:06,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 01:04:06,102 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 01:04:06,103 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 01:04:06,103 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_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3783d3587da248155a249631d60a45401ba312300bba2be3ca998d8320e145d4 [2022-11-26 01:04:06,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 01:04:06,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 01:04:06,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 01:04:06,517 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 01:04:06,517 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 01:04:06,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-26 01:04:09,550 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 01:04:09,811 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 01:04:09,812 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-26 01:04:09,825 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data/ed3d9b184/64cfa2dc9e9b4829828d8b5fcc5e421a/FLAGf0f6495ca [2022-11-26 01:04:09,842 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/data/ed3d9b184/64cfa2dc9e9b4829828d8b5fcc5e421a [2022-11-26 01:04:09,844 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 01:04:09,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 01:04:09,847 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:09,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 01:04:09,851 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 01:04:09,852 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:09" (1/1) ... [2022-11-26 01:04:09,853 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5648e376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:09, skipping insertion in model container [2022-11-26 01:04:09,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 01:04:09" (1/1) ... [2022-11-26 01:04:09,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 01:04:09,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 01:04:10,035 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-26 01:04:10,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:10,174 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 01:04:10,188 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.4.prop1-func-interl.c[1014,1027] [2022-11-26 01:04:10,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 01:04:10,374 INFO L208 MainTranslator]: Completed translation [2022-11-26 01:04:10,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10 WrapperNode [2022-11-26 01:04:10,374 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 01:04:10,375 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:10,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 01:04:10,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 01:04:10,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,493 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-26 01:04:10,494 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 01:04:10,495 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 01:04:10,495 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 01:04:10,495 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 01:04:10,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,554 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,569 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,571 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 01:04:10,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 01:04:10,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 01:04:10,576 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 01:04:10,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (1/1) ... [2022-11-26 01:04:10,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 01:04:10,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:04:10,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 01:04:10,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 01:04:10,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 01:04:10,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 01:04:10,888 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 01:04:10,890 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 01:04:11,565 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 01:04:11,573 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 01:04:11,574 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 01:04:11,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:11 BoogieIcfgContainer [2022-11-26 01:04:11,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 01:04:11,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 01:04:11,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 01:04:11,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 01:04:11,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 01:04:09" (1/3) ... [2022-11-26 01:04:11,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e280d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:11, skipping insertion in model container [2022-11-26 01:04:11,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 01:04:10" (2/3) ... [2022-11-26 01:04:11,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54e280d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 01:04:11, skipping insertion in model container [2022-11-26 01:04:11,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 01:04:11" (3/3) ... [2022-11-26 01:04:11,589 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.4.prop1-func-interl.c [2022-11-26 01:04:11,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 01:04:11,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 01:04:11,669 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 01:04:11,675 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;@5abb73a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 01:04:11,675 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 01:04:11,680 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) [2022-11-26 01:04:11,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 01:04:11,685 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:11,685 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 01:04:11,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:04:11,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:11,690 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-26 01:04:11,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:04:11,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [632095620] [2022-11-26 01:04:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:11,708 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 [2022-11-26 01:04:11,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:04:11,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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) [2022-11-26 01:04:11,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:04:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:11,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-26 01:04:11,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:04:12,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:04:12,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 01:04:12,425 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:04:12,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [632095620] [2022-11-26 01:04:12,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [632095620] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 01:04:12,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 01:04:12,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 01:04:12,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972616715] [2022-11-26 01:04:12,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 01:04:12,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 01:04:12,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:04:12,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 01:04:12,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 01:04:12,486 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) [2022-11-26 01:04:12,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 01:04:12,606 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-26 01:04:12,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 01:04:12,611 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 [2022-11-26 01:04:12,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 01:04:12,619 INFO L225 Difference]: With dead ends: 20 [2022-11-26 01:04:12,619 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 01:04:12,622 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 01:04:12,625 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 [2022-11-26 01:04:12,627 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] [2022-11-26 01:04:12,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 01:04:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-26 01:04:12,656 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) [2022-11-26 01:04:12,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-26 01:04:12,658 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-26 01:04:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 01:04:12,659 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-26 01:04:12,659 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) [2022-11-26 01:04:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-26 01:04:12,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 01:04:12,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 01:04:12,660 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-26 01:04:12,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:04:12,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:04:12,872 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 01:04:12,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 01:04:12,873 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-26 01:04:12,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 01:04:12,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813439526] [2022-11-26 01:04:12,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:04:12,875 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 [2022-11-26 01:04:12,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 01:04:12,876 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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) [2022-11-26 01:04:12,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:04:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:04:13,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-26 01:04:13,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:05:13,927 WARN L233 SmtUtils]: Spent 59.72s on a formula simplification. DAG size of input: 148 DAG size of output: 145 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:05:14,411 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:05:14,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:05:17,781 WARN L837 $PredicateComparison]: unable to prove that (or (forall ((|v_ULTIMATE.start_main_~var_137_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_138_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_123_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_89_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_109_arg_1~0#1_4| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_86_arg_0~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_91_arg_1~0#1_3| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_99_arg_1~0#1_3| (_ BitVec 8))) (= ((_ extract 7 0) (let ((.cse0 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_137_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_99_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_23~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_37~0#1|)))))))))) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_89_arg_1~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_86_arg_0~0#1_3|) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_17~0#1|) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse0 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_38~0#1|)))))))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_91_arg_1~0#1_3|)))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_109_arg_1~0#1_4|)))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_123_arg_1~0#1_3|))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_138_arg_1~0#1_4|))))))) .cse0))))))))) (_ bv1 32)))) .cse0))) (_ bv0 8))) (let ((.cse7 (bvnot (bvlshr |c_ULTIMATE.start_main_~mask_SORT_4~0#1| |c_ULTIMATE.start_main_~var_32~0#1|))) (.cse8 (bvnot |c_ULTIMATE.start_main_~mask_SORT_4~0#1|)) (.cse9 ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_28~0#1|)) (.cse14 (= |c_ULTIMATE.start_main_~input_37~0#1| (_ bv0 8)))) (let ((.cse1 (= |c_ULTIMATE.start_main_~input_38~0#1| (_ bv0 8))) (.cse3 (not .cse14)) (.cse2 (or (and (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse12 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand (bvashr (bvand .cse12 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|)) (not (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse12)))))) (forall ((|v_ULTIMATE.start_main_~var_40_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse13 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_40_arg_1~0#1_3|))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse13 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)) (= (_ bv0 32) (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse13)))))) .cse14))) (and (or (not .cse1) (and .cse2 (or .cse3 (let ((.cse5 (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |c_ULTIMATE.start_main_~var_29~0#1|))))) .cse9))) .cse9))) (_ bv16 32)))) (and (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse4 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse4) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| .cse4) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse6 (bvor .cse5 ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand |c_ULTIMATE.start_main_~msb_SORT_4~0#1| .cse6) (_ bv0 32)) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvor .cse7 (bvashr (bvor .cse6 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|))) |c_ULTIMATE.start_main_~var_27~0#1|)))))))))) (or .cse1 (and (or .cse3 (and (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse10 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (= (bvand .cse10 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32)) (not (= (bvand (bvor .cse7 (bvashr (bvor .cse10 .cse8) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_27~0#1|))))) (forall ((|v_ULTIMATE.start_main_~var_39_arg_1~0#1_3| (_ BitVec 16)) (|v_ULTIMATE.start_main_~var_31_arg_1~0#1_3| (_ BitVec 16))) (let ((.cse11 (bvor (bvshl ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) (bvxor ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) ((_ extract 15 0) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_39_arg_1~0#1_3|))))) .cse9))) .cse9))) (_ bv16 32)) ((_ zero_extend 16) |v_ULTIMATE.start_main_~var_31_arg_1~0#1_3|)))) (or (not (= (bvand .cse11 |c_ULTIMATE.start_main_~msb_SORT_4~0#1|) (_ bv0 32))) (not (= (bvand |c_ULTIMATE.start_main_~mask_SORT_4~0#1| (bvashr (bvand .cse11 |c_ULTIMATE.start_main_~mask_SORT_4~0#1|) |c_ULTIMATE.start_main_~var_32~0#1|)) |c_ULTIMATE.start_main_~var_27~0#1|))))))) .cse2)))))) is different from false [2022-11-26 01:06:32,509 WARN L233 SmtUtils]: Spent 1.19m on a formula simplification that was a NOOP. DAG size: 227 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:06:32,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-26 01:06:32,650 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 01:06:32,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [813439526] [2022-11-26 01:06:32,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [813439526] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:06:32,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1193825688] [2022-11-26 01:06:32,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:06:32,657 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 01:06:32,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 01:06:32,659 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 01:06:32,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-26 01:06:33,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:06:33,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-26 01:06:33,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:07:16,417 WARN L233 SmtUtils]: Spent 39.11s on a formula simplification that was a NOOP. DAG size: 151 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:07:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:07:16,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:07:26,265 WARN L233 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 215 DAG size of output: 209 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:08:46,568 WARN L233 SmtUtils]: Spent 1.23m on a formula simplification that was a NOOP. DAG size: 219 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 01:08:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:08:46,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1193825688] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 01:08:46,633 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008147893] [2022-11-26 01:08:46,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 01:08:46,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 01:08:46,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 01:08:46,638 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 01:08:46,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 01:08:46,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 01:08:46,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-26 01:08:46,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 01:08:48,526 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 01:08:48,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 01:09:28,553 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-26 01:09:28,554 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2022-11-26 01:09:28,555 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2022-11-26 01:09:28,555 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-26 01:09:28,555 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 16 [2022-11-26 01:09:28,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647353229] [2022-11-26 01:09:28,556 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-26 01:09:28,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 01:09:28,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 01:09:28,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 01:09:28,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=186, Unknown=5, NotChecked=28, Total=272 [2022-11-26 01:09:28,559 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 16 states, 16 states have (on average 1.5) internal successors, (24), 16 states have internal predecessors, (24), 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) [2022-11-26 01:09:28,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 267.2s TimeCoverageRelationStatistics Valid=53, Invalid=186, Unknown=5, NotChecked=28, Total=272 [2022-11-26 01:09:28,562 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 01:09:28,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 01:09:28,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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 [2022-11-26 01:09:28,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-26 01:09:28,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-26 01:09:29,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/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_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt [2022-11-26 01:09:29,172 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:158) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.unAssertCodeBlock(IncrementalHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.clearAssertionStack(IncrementalHoareTripleChecker.java:278) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.releaseLock(IncrementalHoareTripleChecker.java:284) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.releaseLock(ChainingHoareTripleChecker.java:449) at java.base/java.util.ArrayList$ArrayListSpliterator.forEachRemaining(ArrayList.java:1655) at java.base/java.util.stream.ReferencePipeline$Head.forEach(ReferencePipeline.java:658) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.releaseLock(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.releaseLock(CachingHoareTripleChecker.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.switchToReadonlyMode(AbstractInterpolantAutomaton.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.computeAutomataDifference(NwaCegarLoop.java:365) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.NwaCegarLoop.refineAbstraction(NwaCegarLoop.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:487) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Broken pipe at java.base/java.io.FileOutputStream.writeBytes(Native Method) at java.base/java.io.FileOutputStream.write(FileOutputStream.java:354) at java.base/java.io.BufferedOutputStream.flushBuffer(BufferedOutputStream.java:81) at java.base/java.io.BufferedOutputStream.flush(BufferedOutputStream.java:142) at java.base/sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:318) at java.base/sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:153) at java.base/java.io.OutputStreamWriter.flush(OutputStreamWriter.java:251) at java.base/java.io.BufferedWriter.flush(BufferedWriter.java:257) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.input(Executor.java:156) ... 36 more [2022-11-26 01:09:29,175 INFO L158 Benchmark]: Toolchain (without parser) took 319329.79ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 65.6MB in the beginning and 65.7MB in the end (delta: -182.0kB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 01:09:29,176 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 01:09:29,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 527.80ms. Allocated memory is still 88.1MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 131.4kB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-11-26 01:09:29,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.24ms. Allocated memory is still 88.1MB. Free memory was 65.2MB in the beginning and 61.2MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:09:29,177 INFO L158 Benchmark]: Boogie Preprocessor took 80.56ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 58.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 01:09:29,178 INFO L158 Benchmark]: RCFGBuilder took 1000.01ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 59.6MB in the end (delta: -1.5MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2022-11-26 01:09:29,178 INFO L158 Benchmark]: TraceAbstraction took 317594.51ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 59.1MB in the beginning and 65.7MB in the end (delta: -6.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-11-26 01:09:29,181 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 65.0MB. Free memory was 42.9MB in the beginning and 42.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 527.80ms. Allocated memory is still 88.1MB. Free memory was 65.3MB in the beginning and 65.2MB in the end (delta: 131.4kB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.24ms. Allocated memory is still 88.1MB. Free memory was 65.2MB in the beginning and 61.2MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.56ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 58.5MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1000.01ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 59.6MB in the end (delta: -1.5MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. * TraceAbstraction took 317594.51ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 59.1MB in the beginning and 65.7MB in the end (delta: -6.6MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.convertIOException(Executor.java:314) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_13bc445f-506a-4068-b2ee-fdbad6a32c4d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken