./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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_842aa213-e8a9-41f5-a245-78902de93274/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 a944a36163c7b4fa5b48c60d1a0d4a18ecec257b1371681a86606945763c584d --- 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 [2022-11-25 23:24:33,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:24:33,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:24:33,333 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:24:33,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:24:33,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:24:33,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:24:33,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:24:33,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:24:33,358 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:24:33,360 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:24:33,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:24:33,363 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:24:33,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:24:33,369 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:24:33,371 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:24:33,373 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:24:33,374 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:24:33,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:24:33,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:24:33,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:24:33,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:24:33,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:24:33,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:24:33,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:24:33,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:24:33,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:24:33,402 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:24:33,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:24:33,404 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:24:33,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:24:33,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:24:33,408 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:24:33,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:24:33,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:24:33,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:24:33,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:24:33,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:24:33,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:24:33,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:24:33,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:24:33,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-25 23:24:33,457 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:24:33,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:24:33,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:24:33,459 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:24:33,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:24:33,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:24:33,461 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:24:33,461 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:24:33,461 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:24:33,462 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:24:33,463 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:24:33,463 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:24:33,464 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:24:33,464 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:24:33,464 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:24:33,465 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:24:33,465 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:24:33,465 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:24:33,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:24:33,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:24:33,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:24:33,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:24:33,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:24:33,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:24:33,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:24:33,469 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:24:33,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:24:33,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:24:33,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:24:33,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:24:33,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:24:33,471 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:24:33,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:24:33,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:24:33,472 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:24:33,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:24:33,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:24:33,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:24:33,473 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_842aa213-e8a9-41f5-a245-78902de93274/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a944a36163c7b4fa5b48c60d1a0d4a18ecec257b1371681a86606945763c584d [2022-11-25 23:24:33,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:24:33,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:24:33,875 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:24:33,876 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:24:33,876 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:24:33,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c [2022-11-25 23:24:36,988 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:24:37,271 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:24:37,274 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c [2022-11-25 23:24:37,283 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data/0f678d9bc/d864133ee24041faa2dbdd11366c64de/FLAGf378ff8e3 [2022-11-25 23:24:37,300 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data/0f678d9bc/d864133ee24041faa2dbdd11366c64de [2022-11-25 23:24:37,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:24:37,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:24:37,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:24:37,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:24:37,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:24:37,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@647fc130 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37, skipping insertion in model container [2022-11-25 23:24:37,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,325 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:24:37,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:24:37,559 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_842aa213-e8a9-41f5-a245-78902de93274/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c[1014,1027] [2022-11-25 23:24:37,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:24:37,732 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:24:37,743 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_842aa213-e8a9-41f5-a245-78902de93274/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c[1014,1027] [2022-11-25 23:24:37,819 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:24:37,833 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:24:37,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37 WrapperNode [2022-11-25 23:24:37,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:24:37,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:24:37,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:24:37,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:24:37,844 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,928 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-25 23:24:37,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:24:37,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:24:37,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:24:37,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:24:37,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:37,997 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:38,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:38,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:38,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:38,033 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:24:38,034 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:24:38,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:24:38,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:24:38,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (1/1) ... [2022-11-25 23:24:38,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:24:38,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:24:38,096 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:24:38,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:24:38,155 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:24:38,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:24:38,345 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:24:38,347 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:24:44,370 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:24:44,390 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:24:44,390 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:24:44,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:44 BoogieIcfgContainer [2022-11-25 23:24:44,393 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:24:44,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:24:44,407 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:24:44,410 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:24:44,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:24:37" (1/3) ... [2022-11-25 23:24:44,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf90fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:24:44, skipping insertion in model container [2022-11-25 23:24:44,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:37" (2/3) ... [2022-11-25 23:24:44,412 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cf90fbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:24:44, skipping insertion in model container [2022-11-25 23:24:44,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:44" (3/3) ... [2022-11-25 23:24:44,415 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.2.prop1-func-interl.c [2022-11-25 23:24:44,435 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:24:44,436 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:24:44,487 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:24:44,494 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;@2ae20686, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:24:44,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:24:44,499 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) [2022-11-25 23:24:44,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:24:44,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:44,506 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:24:44,506 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:24:44,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:44,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-25 23:24:44,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:24:44,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371195304] [2022-11-25 23:24:44,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:44,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:24:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:24:44,954 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:24:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:24:45,066 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:24:45,068 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:24:45,070 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 23:24:45,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:24:45,098 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:24:45,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:24:45,165 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 23:24:45,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:24:45 BoogieIcfgContainer [2022-11-25 23:24:45,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:24:45,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:24:45,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:24:45,207 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:24:45,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:44" (3/4) ... [2022-11-25 23:24:45,212 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:24:45,212 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:24:45,214 INFO L158 Benchmark]: Toolchain (without parser) took 7908.03ms. Allocated memory was 138.4MB in the beginning and 383.8MB in the end (delta: 245.4MB). Free memory was 77.7MB in the beginning and 342.9MB in the end (delta: -265.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:24:45,215 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 101.7MB in the beginning and 101.7MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:24:45,217 INFO L158 Benchmark]: CACSL2BoogieTranslator took 523.82ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 77.4MB in the beginning and 143.8MB in the end (delta: -66.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-11-25 23:24:45,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.10ms. Allocated memory is still 182.5MB. Free memory was 143.8MB in the beginning and 137.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:24:45,223 INFO L158 Benchmark]: Boogie Preprocessor took 104.11ms. Allocated memory is still 182.5MB. Free memory was 137.5MB in the beginning and 133.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:24:45,224 INFO L158 Benchmark]: RCFGBuilder took 6359.12ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 133.3MB in the beginning and 199.3MB in the end (delta: -66.1MB). Peak memory consumption was 183.2MB. Max. memory is 16.1GB. [2022-11-25 23:24:45,225 INFO L158 Benchmark]: TraceAbstraction took 798.63ms. Allocated memory was 318.8MB in the beginning and 383.8MB in the end (delta: 65.0MB). Free memory was 198.3MB in the beginning and 344.0MB in the end (delta: -145.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-25 23:24:45,226 INFO L158 Benchmark]: Witness Printer took 6.67ms. Allocated memory is still 383.8MB. Free memory was 344.0MB in the beginning and 342.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:24:45,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory was 101.7MB in the beginning and 101.7MB in the end (delta: 21.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 523.82ms. Allocated memory was 138.4MB in the beginning and 182.5MB in the end (delta: 44.0MB). Free memory was 77.4MB in the beginning and 143.8MB in the end (delta: -66.3MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.10ms. Allocated memory is still 182.5MB. Free memory was 143.8MB in the beginning and 137.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 104.11ms. Allocated memory is still 182.5MB. Free memory was 137.5MB in the beginning and 133.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 6359.12ms. Allocated memory was 182.5MB in the beginning and 318.8MB in the end (delta: 136.3MB). Free memory was 133.3MB in the beginning and 199.3MB in the end (delta: -66.1MB). Peak memory consumption was 183.2MB. Max. memory is 16.1GB. * TraceAbstraction took 798.63ms. Allocated memory was 318.8MB in the beginning and 383.8MB in the end (delta: 65.0MB). Free memory was 198.3MB in the beginning and 344.0MB in the end (delta: -145.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 6.67ms. Allocated memory is still 383.8MB. Free memory was 344.0MB in the beginning and 342.9MB in the end (delta: 1.1MB). 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 = 500; [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 = 200; [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=500, var_28=1, var_30=0, var_32=16, var_5=0, var_79=200] [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, 0.3s 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 [2022-11-25 23:24:45,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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_842aa213-e8a9-41f5-a245-78902de93274/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 a944a36163c7b4fa5b48c60d1a0d4a18ecec257b1371681a86606945763c584d --- 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 [2022-11-25 23:24:47,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:24:47,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:24:47,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:24:47,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:24:47,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:24:47,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:24:47,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:24:47,901 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:24:47,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:24:47,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:24:47,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:24:47,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:24:47,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:24:47,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:24:47,924 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:24:47,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:24:47,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:24:47,929 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:24:47,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:24:47,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:24:47,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:24:47,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:24:47,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:24:47,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:24:47,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:24:47,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:24:47,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:24:47,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:24:47,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:24:47,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:24:47,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:24:47,964 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:24:47,965 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:24:47,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:24:47,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:24:47,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:24:47,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:24:47,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:24:47,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:24:47,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:24:47,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-25 23:24:48,016 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:24:48,017 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:24:48,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:24:48,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:24:48,018 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:24:48,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:24:48,019 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:24:48,019 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:24:48,019 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:24:48,020 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:24:48,020 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:24:48,020 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:24:48,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:24:48,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:24:48,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:24:48,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:24:48,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:24:48,022 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:24:48,023 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:24:48,023 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:24:48,023 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:24:48,024 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:24:48,024 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:24:48,024 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:24:48,024 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:24:48,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:24:48,025 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:24:48,025 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:24:48,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:24:48,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:24:48,026 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:24:48,026 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:24:48,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:24:48,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:24:48,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:24:48,028 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_842aa213-e8a9-41f5-a245-78902de93274/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a944a36163c7b4fa5b48c60d1a0d4a18ecec257b1371681a86606945763c584d [2022-11-25 23:24:48,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:24:48,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:24:48,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:24:48,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:24:48,448 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:24:48,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c [2022-11-25 23:24:51,710 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:24:51,986 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:24:51,987 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c [2022-11-25 23:24:51,998 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data/1be88815c/fa54a07f1b604e738f0984ca3870aa67/FLAG834f90b45 [2022-11-25 23:24:52,023 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/data/1be88815c/fa54a07f1b604e738f0984ca3870aa67 [2022-11-25 23:24:52,027 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:24:52,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:24:52,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:24:52,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:24:52,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:24:52,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6bbeb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52, skipping insertion in model container [2022-11-25 23:24:52,038 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:24:52,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:24:52,233 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_842aa213-e8a9-41f5-a245-78902de93274/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c[1014,1027] [2022-11-25 23:24:52,355 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:24:52,370 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:24:52,381 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_842aa213-e8a9-41f5-a245-78902de93274/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.adding.2.prop1-func-interl.c[1014,1027] [2022-11-25 23:24:52,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:24:52,530 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:24:52,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52 WrapperNode [2022-11-25 23:24:52,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:24:52,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:24:52,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:24:52,539 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:24:52,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,645 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 431 [2022-11-25 23:24:52,653 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:24:52,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:24:52,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:24:52,655 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:24:52,665 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,725 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,727 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:24:52,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:24:52,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:24:52,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:24:52,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (1/1) ... [2022-11-25 23:24:52,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:24:52,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:24:52,788 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:24:52,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:24:52,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:24:52,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:24:52,991 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:24:52,993 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:24:53,709 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:24:53,716 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:24:53,716 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 23:24:53,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:53 BoogieIcfgContainer [2022-11-25 23:24:53,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:24:53,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:24:53,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:24:53,724 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:24:53,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:24:52" (1/3) ... [2022-11-25 23:24:53,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6483d370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:24:53, skipping insertion in model container [2022-11-25 23:24:53,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:24:52" (2/3) ... [2022-11-25 23:24:53,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6483d370 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:24:53, skipping insertion in model container [2022-11-25 23:24:53,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:24:53" (3/3) ... [2022-11-25 23:24:53,728 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.adding.2.prop1-func-interl.c [2022-11-25 23:24:53,748 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:24:53,748 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 23:24:53,796 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:24:53,805 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;@3275fa04, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:24:53,805 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 23:24:53,809 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) [2022-11-25 23:24:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:24:53,816 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:53,817 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:24:53,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:24:53,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:53,826 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 23:24:53,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:24:53,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118134539] [2022-11-25 23:24:53,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:53,844 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 [2022-11-25 23:24:53,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:24:53,854 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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) [2022-11-25 23:24:53,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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 [2022-11-25 23:24:54,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:54,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-25 23:24:54,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:24:54,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:24:54,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:24:54,601 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:24:54,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118134539] [2022-11-25 23:24:54,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [118134539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:24:54,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:24:54,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:24:54,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185676863] [2022-11-25 23:24:54,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:24:54,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:24:54,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:24:54,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:24:54,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:24:54,675 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) [2022-11-25 23:24:54,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:24:54,796 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 23:24:54,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:24:54,801 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 [2022-11-25 23:24:54,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:24:54,809 INFO L225 Difference]: With dead ends: 20 [2022-11-25 23:24:54,809 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 23:24:54,812 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 [2022-11-25 23:24:54,816 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 [2022-11-25 23:24:54,817 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] [2022-11-25 23:24:54,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 23:24:54,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 23:24:54,846 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) [2022-11-25 23:24:54,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 23:24:54,848 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 23:24:54,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:24:54,849 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 23:24:54,850 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) [2022-11-25 23:24:54,850 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 23:24:54,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:24:54,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:24:54,851 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 23:24:54,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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 [2022-11-25 23:24:55,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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 [2022-11-25 23:24:55,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 23:24:55,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:24:55,070 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 23:24:55,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:24:55,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728392740] [2022-11-25 23:24:55,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:24:55,072 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 [2022-11-25 23:24:55,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:24:55,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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) [2022-11-25 23:24:55,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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 [2022-11-25 23:24:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:24:55,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-25 23:24:55,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:25:54,454 WARN L233 SmtUtils]: Spent 57.94s 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) [2022-11-25 23:25:54,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:25:54,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:25:58,050 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 [2022-11-25 23:27:12,726 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) [2022-11-25 23:27:12,856 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-11-25 23:27:12,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 23:27:12,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728392740] [2022-11-25 23:27:12,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1728392740] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:27:12,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [395627339] [2022-11-25 23:27:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:27:12,858 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-25 23:27:12,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-25 23:27:12,864 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-25 23:27:12,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-25 23:27:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:27:13,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 75 conjunts are in the unsatisfiable core [2022-11-25 23:27:13,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:27:15,079 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:27:15,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:27:36,615 WARN L233 SmtUtils]: Spent 19.53s on a formula simplification. DAG size of input: 215 DAG size of output: 214 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:28:59,647 WARN L233 SmtUtils]: Spent 1.21m 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) [2022-11-25 23:28:59,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:28:59,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [395627339] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:28:59,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1980126537] [2022-11-25 23:28:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:28:59,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:28:59,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:28:59,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:28:59,822 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:29:00,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:29:00,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 78 conjunts are in the unsatisfiable core [2022-11-25 23:29:00,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:29:02,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:29:02,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:29:43,953 WARN L230 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-11-25 23:29:43,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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") [2022-11-25 23:29:43,954 INFO L184 FreeRefinementEngine]: Found 0 perfect and 4 imperfect interpolant sequences. [2022-11-25 23:29:43,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6] total 12 [2022-11-25 23:29:43,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500516958] [2022-11-25 23:29:43,955 INFO L85 oduleStraightlineAll]: Using 4 imperfect interpolants to construct interpolant automaton [2022-11-25 23:29:43,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-25 23:29:43,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 23:29:43,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-25 23:29:43,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=99, Unknown=5, NotChecked=20, Total=156 [2022-11-25 23:29:43,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-11-25 23:29:43,959 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 12 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:29:43,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 238.5s TimeCoverageRelationStatistics Valid=32, Invalid=99, Unknown=5, NotChecked=20, Total=156 [2022-11-25 23:29:43,962 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 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 [2022-11-25 23:29:43,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:29:43,977 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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 [2022-11-25 23:29:44,180 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:29:44,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:29:44,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/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=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:29:44,577 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_842aa213-e8a9-41f5-a245-78902de93274/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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: java.io.IOException: Stream closed at java.base/java.lang.ProcessBuilder$NullOutputStream.write(ProcessBuilder.java:442) at java.base/java.io.OutputStream.write(OutputStream.java:157) 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 [2022-11-25 23:29:44,581 INFO L158 Benchmark]: Toolchain (without parser) took 292552.03ms. Allocated memory was 81.8MB in the beginning and 125.8MB in the end (delta: 44.0MB). Free memory was 60.8MB in the beginning and 59.8MB in the end (delta: 1.0MB). Peak memory consumption was 43.5MB. Max. memory is 16.1GB. [2022-11-25 23:29:44,581 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:29:44,582 INFO L158 Benchmark]: CACSL2BoogieTranslator took 507.16ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 40.4MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:29:44,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.49ms. Allocated memory is still 81.8MB. Free memory was 40.3MB in the beginning and 59.4MB in the end (delta: -19.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 23:29:44,583 INFO L158 Benchmark]: Boogie Preprocessor took 77.98ms. Allocated memory is still 81.8MB. Free memory was 59.4MB in the beginning and 56.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:29:44,583 INFO L158 Benchmark]: RCFGBuilder took 985.09ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 56.6MB in the beginning and 77.7MB in the end (delta: -21.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-25 23:29:44,583 INFO L158 Benchmark]: TraceAbstraction took 290859.22ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 77.0MB in the beginning and 59.8MB in the end (delta: 17.3MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-11-25 23:29:44,585 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 81.8MB. Free memory is still 59.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 507.16ms. Allocated memory is still 81.8MB. Free memory was 60.5MB in the beginning and 40.4MB in the end (delta: 20.2MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.49ms. Allocated memory is still 81.8MB. Free memory was 40.3MB in the beginning and 59.4MB in the end (delta: -19.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 77.98ms. Allocated memory is still 81.8MB. Free memory was 59.4MB in the beginning and 56.6MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 985.09ms. Allocated memory was 81.8MB in the beginning and 104.9MB in the end (delta: 23.1MB). Free memory was 56.6MB in the beginning and 77.7MB in the end (delta: -21.1MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * TraceAbstraction took 290859.22ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 77.0MB in the beginning and 59.8MB in the end (delta: 17.3MB). Peak memory consumption was 38.2MB. 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_842aa213-e8a9-41f5-a245-78902de93274/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_842aa213-e8a9-41f5-a245-78902de93274/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_842aa213-e8a9-41f5-a245-78902de93274/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken