./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.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_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/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_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/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_017a7d5f-0020-435b-9288-62d262da13f9/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 326521f65d530a85812f1d291278e004c4dab91ba597589c76a106156950042a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:33:14,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:33:14,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:33:14,320 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:33:14,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:33:14,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:33:14,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:33:14,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:33:14,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:33:14,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:33:14,341 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:33:14,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:33:14,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:33:14,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:33:14,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:33:14,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:33:14,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:33:14,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:33:14,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:33:14,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:33:14,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:33:14,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:33:14,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:33:14,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:33:14,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:33:14,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:33:14,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:33:14,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:33:14,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:33:14,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:33:14,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:33:14,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:33:14,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:33:14,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:33:14,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:33:14,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:33:14,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:33:14,376 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:33:14,376 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:33:14,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:33:14,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:33:14,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:33:14,415 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:33:14,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:33:14,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:33:14,417 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:33:14,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:33:14,418 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:33:14,418 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:33:14,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:33:14,418 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:33:14,419 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:33:14,420 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:33:14,420 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:33:14,420 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:33:14,420 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:33:14,421 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:33:14,421 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:33:14,421 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:33:14,421 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:33:14,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:33:14,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:33:14,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:33:14,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:33:14,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:33:14,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:33:14,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:33:14,423 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:33:14,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:33:14,424 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:33:14,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:33:14,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:14,425 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:33:14,425 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:33:14,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:33:14,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:33:14,427 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:33:14,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:33:14,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:33:14,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:33:14,427 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_017a7d5f-0020-435b-9288-62d262da13f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 326521f65d530a85812f1d291278e004c4dab91ba597589c76a106156950042a [2022-11-26 00:33:14,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:33:14,791 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:33:14,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:33:14,795 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:33:14,795 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:33:14,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2022-11-26 00:33:17,730 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:33:18,043 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:33:18,044 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2022-11-26 00:33:18,056 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data/82e6a6494/4059355594204ab0a839594fb4cf3350/FLAGb5d31f709 [2022-11-26 00:33:18,089 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data/82e6a6494/4059355594204ab0a839594fb4cf3350 [2022-11-26 00:33:18,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:33:18,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:33:18,100 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:18,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:33:18,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:33:18,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e9b88ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18, skipping insertion in model container [2022-11-26 00:33:18,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,116 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:33:18,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:33:18,320 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_017a7d5f-0020-435b-9288-62d262da13f9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1107,1120] [2022-11-26 00:33:18,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:18,603 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:33:18,615 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_017a7d5f-0020-435b-9288-62d262da13f9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1107,1120] [2022-11-26 00:33:18,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:18,707 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:33:18,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18 WrapperNode [2022-11-26 00:33:18,708 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:18,709 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:18,709 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:33:18,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:33:18,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,819 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 763 [2022-11-26 00:33:18,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:18,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:33:18,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:33:18,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:33:18,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,884 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:33:18,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:33:18,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:33:18,885 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:33:18,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (1/1) ... [2022-11-26 00:33:18,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:18,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:18,948 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:33:18,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:33:18,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:33:18,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:33:19,258 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:33:19,261 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:33:21,921 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:33:21,963 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:33:21,963 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:33:21,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:21 BoogieIcfgContainer [2022-11-26 00:33:21,968 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:33:21,971 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:33:21,971 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:33:21,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:33:21,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:33:18" (1/3) ... [2022-11-26 00:33:21,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f8513d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:21, skipping insertion in model container [2022-11-26 00:33:21,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:18" (2/3) ... [2022-11-26 00:33:21,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26f8513d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:21, skipping insertion in model container [2022-11-26 00:33:21,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:21" (3/3) ... [2022-11-26 00:33:21,983 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_dec.c [2022-11-26 00:33:22,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:33:22,003 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:33:22,065 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:33:22,073 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;@cfeb7ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:33:22,075 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:33:22,079 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:22,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:33:22,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:22,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:33:22,087 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:22,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:22,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-26 00:33:22,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:22,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892123164] [2022-11-26 00:33:22,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:22,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:23,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:33:23,649 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:33:24,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:33:24,894 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:33:24,896 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:33:24,897 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:33:24,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:33:24,904 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:33:24,908 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:33:24,955 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-26 00:33:24,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:33:24 BoogieIcfgContainer [2022-11-26 00:33:24,979 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:33:24,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:33:24,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:33:24,981 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:33:24,983 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:21" (3/4) ... [2022-11-26 00:33:24,987 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:33:24,987 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:33:24,989 INFO L158 Benchmark]: Toolchain (without parser) took 6892.38ms. Allocated memory was 155.2MB in the beginning and 232.8MB in the end (delta: 77.6MB). Free memory was 124.2MB in the beginning and 172.9MB in the end (delta: -48.7MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2022-11-26 00:33:24,990 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory was 83.3MB in the beginning and 83.3MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:33:24,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 608.80ms. Allocated memory is still 155.2MB. Free memory was 123.8MB in the beginning and 95.0MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:33:24,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 110.19ms. Allocated memory is still 155.2MB. Free memory was 95.0MB in the beginning and 87.4MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-26 00:33:24,996 INFO L158 Benchmark]: Boogie Preprocessor took 64.29ms. Allocated memory is still 155.2MB. Free memory was 87.4MB in the beginning and 83.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:33:24,997 INFO L158 Benchmark]: RCFGBuilder took 3083.31ms. Allocated memory was 155.2MB in the beginning and 232.8MB in the end (delta: 77.6MB). Free memory was 83.9MB in the beginning and 129.4MB in the end (delta: -45.5MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. [2022-11-26 00:33:24,997 INFO L158 Benchmark]: TraceAbstraction took 3007.93ms. Allocated memory is still 232.8MB. Free memory was 128.4MB in the beginning and 172.9MB in the end (delta: -44.5MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. [2022-11-26 00:33:24,997 INFO L158 Benchmark]: Witness Printer took 7.21ms. Allocated memory is still 232.8MB. Free memory was 172.9MB in the beginning and 172.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:33:25,000 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 113.2MB. Free memory was 83.3MB in the beginning and 83.3MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 608.80ms. Allocated memory is still 155.2MB. Free memory was 123.8MB in the beginning and 95.0MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 110.19ms. Allocated memory is still 155.2MB. Free memory was 95.0MB in the beginning and 87.4MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.29ms. Allocated memory is still 155.2MB. Free memory was 87.4MB in the beginning and 83.9MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3083.31ms. Allocated memory was 155.2MB in the beginning and 232.8MB in the end (delta: 77.6MB). Free memory was 83.9MB in the beginning and 129.4MB in the end (delta: -45.5MB). Peak memory consumption was 85.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3007.93ms. Allocated memory is still 232.8MB. Free memory was 128.4MB in the beginning and 172.9MB in the end (delta: -44.5MB). Peak memory consumption was 70.7MB. Max. memory is 16.1GB. * Witness Printer took 7.21ms. Allocated memory is still 232.8MB. Free memory was 172.9MB in the beginning and 172.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 434, overapproximation of bitwiseAnd at line 149. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 5); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (5 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 1); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (1 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 32); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (32 - 1); [L34] const SORT_8 mask_SORT_8 = (SORT_8)-1 >> (sizeof(SORT_8) * 8 - 10); [L35] const SORT_8 msb_SORT_8 = (SORT_8)1 << (10 - 1); [L37] const SORT_142 mask_SORT_142 = (SORT_142)-1 >> (sizeof(SORT_142) * 8 - 8); [L38] const SORT_142 msb_SORT_142 = (SORT_142)1 << (8 - 1); [L40] const SORT_163 mask_SORT_163 = (SORT_163)-1 >> (sizeof(SORT_163) * 8 - 22); [L41] const SORT_163 msb_SORT_163 = (SORT_163)1 << (22 - 1); [L43] const SORT_165 mask_SORT_165 = (SORT_165)-1 >> (sizeof(SORT_165) * 8 - 9); [L44] const SORT_165 msb_SORT_165 = (SORT_165)1 << (9 - 1); [L46] const SORT_180 mask_SORT_180 = (SORT_180)-1 >> (sizeof(SORT_180) * 8 - 27); [L47] const SORT_180 msb_SORT_180 = (SORT_180)1 << (27 - 1); [L49] const SORT_5 var_6 = 0; [L50] const SORT_5 var_7 = 74; [L51] const SORT_8 var_9 = 0; [L52] const SORT_5 var_13 = 610; [L53] const SORT_5 var_16 = 90; [L54] const SORT_5 var_18 = 609; [L55] const SORT_5 var_21 = 88; [L56] const SORT_5 var_23 = 306; [L57] const SORT_5 var_26 = 75; [L58] const SORT_5 var_28 = 305; [L59] const SORT_5 var_31 = 81; [L60] const SORT_5 var_33 = 303; [L61] const SORT_5 var_36 = 86; [L62] const SORT_5 var_38 = 244; [L63] const SORT_5 var_41 = 66; [L64] const SORT_5 var_43 = 243; [L65] const SORT_5 var_46 = 77; [L66] const SORT_5 var_48 = 122; [L67] const SORT_5 var_51 = 89; [L68] const SORT_5 var_55 = 71; [L69] const SORT_5 var_59 = 87; [L70] const SORT_5 var_61 = 76; [L71] const SORT_5 var_64 = 68; [L72] const SORT_5 var_66 = 59; [L73] const SORT_5 var_69 = 72; [L74] const SORT_5 var_71 = 43; [L75] const SORT_5 var_75 = 38; [L76] const SORT_5 var_78 = 67; [L77] const SORT_5 var_80 = 34; [L78] const SORT_5 var_83 = 70; [L79] const SORT_5 var_85 = 33; [L80] const SORT_5 var_88 = 80; [L81] const SORT_5 var_90 = 32; [L82] const SORT_5 var_93 = 85; [L83] const SORT_5 var_95 = 31; [L84] const SORT_5 var_98 = 84; [L85] const SORT_5 var_100 = 30; [L86] const SORT_5 var_103 = 78; [L87] const SORT_5 var_105 = 26; [L88] const SORT_5 var_108 = 82; [L89] const SORT_5 var_110 = 25; [L90] const SORT_5 var_113 = 79; [L91] const SORT_5 var_115 = 24; [L92] const SORT_5 var_118 = 73; [L93] const SORT_5 var_120 = 23; [L94] const SORT_5 var_123 = 65; [L95] const SORT_5 var_125 = 22; [L96] const SORT_5 var_128 = 83; [L97] const SORT_5 var_130 = 17; [L98] const SORT_5 var_134 = 13; [L99] const SORT_5 var_137 = 69; [L100] const SORT_5 var_139 = 9; [L101] const SORT_5 var_145 = 255; [L102] const SORT_3 var_148 = 1; [L103] const SORT_3 var_162 = 0; [L104] const SORT_163 var_164 = 0; [L105] const SORT_5 var_170 = 1; [L106] const SORT_5 var_171 = 2; [L107] const SORT_8 var_179 = 908; [L108] const SORT_180 var_181 = 0; [L109] const SORT_8 var_191 = 652; [L110] const SORT_8 var_195 = 460; [L111] const SORT_8 var_199 = 332; [L112] const SORT_8 var_203 = 268; [L113] const SORT_8 var_207 = 215; [L114] const SORT_8 var_211 = 151; [L115] const SORT_8 var_215 = 119; [L116] const SORT_8 var_219 = 118; [L117] const SORT_8 var_223 = 86; [L118] const SORT_8 var_227 = 108; [L119] const SORT_8 var_231 = 39; [L120] const SORT_8 var_235 = 38; [L121] const SORT_8 var_239 = 60; [L122] const SORT_8 var_243 = 56; [L123] const SORT_8 var_247 = 40; [L124] const SORT_8 var_251 = 48; [L125] const SORT_8 var_255 = 32; [L126] const SORT_8 var_259 = 31; [L127] const SORT_8 var_263 = 29; [L128] const SORT_8 var_267 = 21; [L129] const SORT_8 var_271 = 25; [L130] const SORT_8 var_275 = 17; [L131] const SORT_8 var_279 = 30; [L132] const SORT_8 var_283 = 20; [L133] const SORT_8 var_287 = 11; [L134] const SORT_8 var_291 = 10; [L136] SORT_1 input_2; [L137] SORT_3 input_4; [L138] SORT_142 input_152; [L139] SORT_3 input_154; [L141] SORT_8 state_10 = __VERIFIER_nondet_ushort() & mask_SORT_8; [L142] SORT_8 state_161 = __VERIFIER_nondet_ushort() & mask_SORT_8; [L144] SORT_8 init_11_arg_1 = var_9; [L145] state_10 = init_11_arg_1 VAL [init_11_arg_1=0, mask_SORT_1=31, mask_SORT_142=255, mask_SORT_163=4294967295, mask_SORT_165=511, mask_SORT_180=4294967295, mask_SORT_3=1, mask_SORT_5=4294967295, mask_SORT_8=1023, msb_SORT_1=16, msb_SORT_142=128, msb_SORT_163=2097152, msb_SORT_165=256, msb_SORT_180=67108864, msb_SORT_3=1, msb_SORT_5=2147483648, msb_SORT_8=512, state_10=0, state_161=0, var_100=30, var_103=78, var_105=26, var_108=82, var_110=25, var_113=79, var_115=24, var_118=73, var_120=23, var_123=65, var_125=22, var_128=83, var_13=610, var_130=17, var_134=13, var_137=69, var_139=9, var_145=255, var_148=1, var_16=90, var_162=0, var_164=0, var_170=1, var_171=2, var_179=908, var_18=609, var_181=0, var_191=652, var_195=460, var_199=332, var_203=268, var_207=215, var_21=88, var_211=151, var_215=119, var_219=118, var_223=86, var_227=108, var_23=306, var_231=39, var_235=38, var_239=60, var_243=56, var_247=40, var_251=48, var_255=32, var_259=31, var_26=75, var_263=29, var_267=21, var_271=25, var_275=17, var_279=30, var_28=305, var_283=20, var_287=11, var_291=10, var_31=81, var_33=303, var_36=86, var_38=244, var_41=66, var_43=243, var_46=77, var_48=122, var_51=89, var_55=71, var_59=87, var_6=0, var_61=76, var_64=68, var_66=59, var_69=72, var_7=74, var_71=43, var_75=38, var_78=67, var_80=34, var_83=70, var_85=33, var_88=80, var_9=0, var_90=32, var_93=85, var_95=31, var_98=84] [L148] input_2 = __VERIFIER_nondet_uchar() [L149] input_2 = input_2 & mask_SORT_1 [L150] input_4 = __VERIFIER_nondet_uchar() [L151] input_152 = __VERIFIER_nondet_uchar() [L152] input_154 = __VERIFIER_nondet_uchar() [L155] SORT_8 var_138_arg_0 = state_10; [L156] var_138_arg_0 = var_138_arg_0 & mask_SORT_8 [L157] SORT_5 var_138 = var_138_arg_0; [L158] SORT_5 var_140_arg_0 = var_138; [L159] SORT_5 var_140_arg_1 = var_139; [L160] SORT_3 var_140 = var_140_arg_0 == var_140_arg_1; [L161] SORT_8 var_133_arg_0 = state_10; [L162] var_133_arg_0 = var_133_arg_0 & mask_SORT_8 [L163] SORT_5 var_133 = var_133_arg_0; [L164] SORT_5 var_135_arg_0 = var_133; [L165] SORT_5 var_135_arg_1 = var_134; [L166] SORT_3 var_135 = var_135_arg_0 == var_135_arg_1; [L167] SORT_8 var_129_arg_0 = state_10; [L168] var_129_arg_0 = var_129_arg_0 & mask_SORT_8 [L169] SORT_5 var_129 = var_129_arg_0; [L170] SORT_5 var_131_arg_0 = var_129; [L171] SORT_5 var_131_arg_1 = var_130; [L172] SORT_3 var_131 = var_131_arg_0 == var_131_arg_1; [L173] SORT_8 var_124_arg_0 = state_10; [L174] var_124_arg_0 = var_124_arg_0 & mask_SORT_8 [L175] SORT_5 var_124 = var_124_arg_0; [L176] SORT_5 var_126_arg_0 = var_124; [L177] SORT_5 var_126_arg_1 = var_125; [L178] SORT_3 var_126 = var_126_arg_0 == var_126_arg_1; [L179] SORT_8 var_119_arg_0 = state_10; [L180] var_119_arg_0 = var_119_arg_0 & mask_SORT_8 [L181] SORT_5 var_119 = var_119_arg_0; [L182] SORT_5 var_121_arg_0 = var_119; [L183] SORT_5 var_121_arg_1 = var_120; [L184] SORT_3 var_121 = var_121_arg_0 == var_121_arg_1; [L185] SORT_8 var_114_arg_0 = state_10; [L186] var_114_arg_0 = var_114_arg_0 & mask_SORT_8 [L187] SORT_5 var_114 = var_114_arg_0; [L188] SORT_5 var_116_arg_0 = var_114; [L189] SORT_5 var_116_arg_1 = var_115; [L190] SORT_3 var_116 = var_116_arg_0 == var_116_arg_1; [L191] SORT_8 var_109_arg_0 = state_10; [L192] var_109_arg_0 = var_109_arg_0 & mask_SORT_8 [L193] SORT_5 var_109 = var_109_arg_0; [L194] SORT_5 var_111_arg_0 = var_109; [L195] SORT_5 var_111_arg_1 = var_110; [L196] SORT_3 var_111 = var_111_arg_0 == var_111_arg_1; [L197] SORT_8 var_104_arg_0 = state_10; [L198] var_104_arg_0 = var_104_arg_0 & mask_SORT_8 [L199] SORT_5 var_104 = var_104_arg_0; [L200] SORT_5 var_106_arg_0 = var_104; [L201] SORT_5 var_106_arg_1 = var_105; [L202] SORT_3 var_106 = var_106_arg_0 == var_106_arg_1; [L203] SORT_8 var_99_arg_0 = state_10; [L204] var_99_arg_0 = var_99_arg_0 & mask_SORT_8 [L205] SORT_5 var_99 = var_99_arg_0; [L206] SORT_5 var_101_arg_0 = var_99; [L207] SORT_5 var_101_arg_1 = var_100; [L208] SORT_3 var_101 = var_101_arg_0 == var_101_arg_1; [L209] SORT_8 var_94_arg_0 = state_10; [L210] var_94_arg_0 = var_94_arg_0 & mask_SORT_8 [L211] SORT_5 var_94 = var_94_arg_0; [L212] SORT_5 var_96_arg_0 = var_94; [L213] SORT_5 var_96_arg_1 = var_95; [L214] SORT_3 var_96 = var_96_arg_0 == var_96_arg_1; [L215] SORT_8 var_89_arg_0 = state_10; [L216] var_89_arg_0 = var_89_arg_0 & mask_SORT_8 [L217] SORT_5 var_89 = var_89_arg_0; [L218] SORT_5 var_91_arg_0 = var_89; [L219] SORT_5 var_91_arg_1 = var_90; [L220] SORT_3 var_91 = var_91_arg_0 == var_91_arg_1; [L221] SORT_8 var_84_arg_0 = state_10; [L222] var_84_arg_0 = var_84_arg_0 & mask_SORT_8 [L223] SORT_5 var_84 = var_84_arg_0; [L224] SORT_5 var_86_arg_0 = var_84; [L225] SORT_5 var_86_arg_1 = var_85; [L226] SORT_3 var_86 = var_86_arg_0 == var_86_arg_1; [L227] SORT_8 var_79_arg_0 = state_10; [L228] var_79_arg_0 = var_79_arg_0 & mask_SORT_8 [L229] SORT_5 var_79 = var_79_arg_0; [L230] SORT_5 var_81_arg_0 = var_79; [L231] SORT_5 var_81_arg_1 = var_80; [L232] SORT_3 var_81 = var_81_arg_0 == var_81_arg_1; [L233] SORT_8 var_74_arg_0 = state_10; [L234] var_74_arg_0 = var_74_arg_0 & mask_SORT_8 [L235] SORT_5 var_74 = var_74_arg_0; [L236] SORT_5 var_76_arg_0 = var_74; [L237] SORT_5 var_76_arg_1 = var_75; [L238] SORT_3 var_76 = var_76_arg_0 == var_76_arg_1; [L239] SORT_8 var_70_arg_0 = state_10; [L240] var_70_arg_0 = var_70_arg_0 & mask_SORT_8 [L241] SORT_5 var_70 = var_70_arg_0; [L242] SORT_5 var_72_arg_0 = var_70; [L243] SORT_5 var_72_arg_1 = var_71; [L244] SORT_3 var_72 = var_72_arg_0 == var_72_arg_1; [L245] SORT_8 var_65_arg_0 = state_10; [L246] var_65_arg_0 = var_65_arg_0 & mask_SORT_8 [L247] SORT_5 var_65 = var_65_arg_0; [L248] SORT_5 var_67_arg_0 = var_65; [L249] SORT_5 var_67_arg_1 = var_66; [L250] SORT_3 var_67 = var_67_arg_0 == var_67_arg_1; [L251] SORT_8 var_60_arg_0 = state_10; [L252] var_60_arg_0 = var_60_arg_0 & mask_SORT_8 [L253] SORT_5 var_60 = var_60_arg_0; [L254] SORT_5 var_62_arg_0 = var_60; [L255] SORT_5 var_62_arg_1 = var_61; [L256] SORT_3 var_62 = var_62_arg_0 == var_62_arg_1; [L257] SORT_8 var_56_arg_0 = state_10; [L258] var_56_arg_0 = var_56_arg_0 & mask_SORT_8 [L259] SORT_5 var_56 = var_56_arg_0; [L260] SORT_5 var_57_arg_0 = var_56; [L261] SORT_5 var_57_arg_1 = var_51; [L262] SORT_3 var_57 = var_57_arg_0 == var_57_arg_1; [L263] SORT_8 var_52_arg_0 = state_10; [L264] var_52_arg_0 = var_52_arg_0 & mask_SORT_8 [L265] SORT_5 var_52 = var_52_arg_0; [L266] SORT_5 var_53_arg_0 = var_52; [L267] SORT_5 var_53_arg_1 = var_16; [L268] SORT_3 var_53 = var_53_arg_0 == var_53_arg_1; [L269] SORT_8 var_47_arg_0 = state_10; [L270] var_47_arg_0 = var_47_arg_0 & mask_SORT_8 [L271] SORT_5 var_47 = var_47_arg_0; [L272] SORT_5 var_49_arg_0 = var_47; [L273] SORT_5 var_49_arg_1 = var_48; [L274] SORT_3 var_49 = var_49_arg_0 == var_49_arg_1; [L275] SORT_8 var_42_arg_0 = state_10; [L276] var_42_arg_0 = var_42_arg_0 & mask_SORT_8 [L277] SORT_5 var_42 = var_42_arg_0; [L278] SORT_5 var_44_arg_0 = var_42; [L279] SORT_5 var_44_arg_1 = var_43; [L280] SORT_3 var_44 = var_44_arg_0 == var_44_arg_1; [L281] SORT_8 var_37_arg_0 = state_10; [L282] var_37_arg_0 = var_37_arg_0 & mask_SORT_8 [L283] SORT_5 var_37 = var_37_arg_0; [L284] SORT_5 var_39_arg_0 = var_37; [L285] SORT_5 var_39_arg_1 = var_38; [L286] SORT_3 var_39 = var_39_arg_0 == var_39_arg_1; [L287] SORT_8 var_32_arg_0 = state_10; [L288] var_32_arg_0 = var_32_arg_0 & mask_SORT_8 [L289] SORT_5 var_32 = var_32_arg_0; [L290] SORT_5 var_34_arg_0 = var_32; [L291] SORT_5 var_34_arg_1 = var_33; [L292] SORT_3 var_34 = var_34_arg_0 == var_34_arg_1; [L293] SORT_8 var_27_arg_0 = state_10; [L294] var_27_arg_0 = var_27_arg_0 & mask_SORT_8 [L295] SORT_5 var_27 = var_27_arg_0; [L296] SORT_5 var_29_arg_0 = var_27; [L297] SORT_5 var_29_arg_1 = var_28; [L298] SORT_3 var_29 = var_29_arg_0 == var_29_arg_1; [L299] SORT_8 var_22_arg_0 = state_10; [L300] var_22_arg_0 = var_22_arg_0 & mask_SORT_8 [L301] SORT_5 var_22 = var_22_arg_0; [L302] SORT_5 var_24_arg_0 = var_22; [L303] SORT_5 var_24_arg_1 = var_23; [L304] SORT_3 var_24 = var_24_arg_0 == var_24_arg_1; [L305] SORT_8 var_17_arg_0 = state_10; [L306] var_17_arg_0 = var_17_arg_0 & mask_SORT_8 [L307] SORT_5 var_17 = var_17_arg_0; [L308] SORT_5 var_19_arg_0 = var_17; [L309] SORT_5 var_19_arg_1 = var_18; [L310] SORT_3 var_19 = var_19_arg_0 == var_19_arg_1; [L311] SORT_8 var_12_arg_0 = state_10; [L312] var_12_arg_0 = var_12_arg_0 & mask_SORT_8 [L313] SORT_5 var_12 = var_12_arg_0; [L314] SORT_5 var_14_arg_0 = var_12; [L315] SORT_5 var_14_arg_1 = var_13; [L316] SORT_3 var_14 = var_14_arg_0 == var_14_arg_1; [L317] SORT_3 var_15_arg_0 = var_14; [L318] SORT_5 var_15_arg_1 = var_7; [L319] SORT_5 var_15_arg_2 = var_6; [L320] SORT_5 var_15 = var_15_arg_0 ? var_15_arg_1 : var_15_arg_2; [L321] SORT_3 var_20_arg_0 = var_19; [L322] SORT_5 var_20_arg_1 = var_16; [L323] SORT_5 var_20_arg_2 = var_15; [L324] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L325] SORT_3 var_25_arg_0 = var_24; [L326] SORT_5 var_25_arg_1 = var_21; [L327] SORT_5 var_25_arg_2 = var_20; [L328] SORT_5 var_25 = var_25_arg_0 ? var_25_arg_1 : var_25_arg_2; [L329] SORT_3 var_30_arg_0 = var_29; [L330] SORT_5 var_30_arg_1 = var_26; [L331] SORT_5 var_30_arg_2 = var_25; [L332] SORT_5 var_30 = var_30_arg_0 ? var_30_arg_1 : var_30_arg_2; [L333] SORT_3 var_35_arg_0 = var_34; [L334] SORT_5 var_35_arg_1 = var_31; [L335] SORT_5 var_35_arg_2 = var_30; [L336] SORT_5 var_35 = var_35_arg_0 ? var_35_arg_1 : var_35_arg_2; [L337] SORT_3 var_40_arg_0 = var_39; [L338] SORT_5 var_40_arg_1 = var_36; [L339] SORT_5 var_40_arg_2 = var_35; [L340] SORT_5 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L341] SORT_3 var_45_arg_0 = var_44; [L342] SORT_5 var_45_arg_1 = var_41; [L343] SORT_5 var_45_arg_2 = var_40; [L344] SORT_5 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L345] SORT_3 var_50_arg_0 = var_49; [L346] SORT_5 var_50_arg_1 = var_46; [L347] SORT_5 var_50_arg_2 = var_45; [L348] SORT_5 var_50 = var_50_arg_0 ? var_50_arg_1 : var_50_arg_2; [L349] SORT_3 var_54_arg_0 = var_53; [L350] SORT_5 var_54_arg_1 = var_51; [L351] SORT_5 var_54_arg_2 = var_50; [L352] SORT_5 var_54 = var_54_arg_0 ? var_54_arg_1 : var_54_arg_2; [L353] SORT_3 var_58_arg_0 = var_57; [L354] SORT_5 var_58_arg_1 = var_55; [L355] SORT_5 var_58_arg_2 = var_54; [L356] SORT_5 var_58 = var_58_arg_0 ? var_58_arg_1 : var_58_arg_2; [L357] SORT_3 var_63_arg_0 = var_62; [L358] SORT_5 var_63_arg_1 = var_59; [L359] SORT_5 var_63_arg_2 = var_58; [L360] SORT_5 var_63 = var_63_arg_0 ? var_63_arg_1 : var_63_arg_2; [L361] SORT_3 var_68_arg_0 = var_67; [L362] SORT_5 var_68_arg_1 = var_64; [L363] SORT_5 var_68_arg_2 = var_63; [L364] SORT_5 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L365] SORT_3 var_73_arg_0 = var_72; [L366] SORT_5 var_73_arg_1 = var_69; [L367] SORT_5 var_73_arg_2 = var_68; [L368] SORT_5 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L369] SORT_3 var_77_arg_0 = var_76; [L370] SORT_5 var_77_arg_1 = var_61; [L371] SORT_5 var_77_arg_2 = var_73; [L372] SORT_5 var_77 = var_77_arg_0 ? var_77_arg_1 : var_77_arg_2; [L373] SORT_3 var_82_arg_0 = var_81; [L374] SORT_5 var_82_arg_1 = var_78; [L375] SORT_5 var_82_arg_2 = var_77; [L376] SORT_5 var_82 = var_82_arg_0 ? var_82_arg_1 : var_82_arg_2; [L377] SORT_3 var_87_arg_0 = var_86; [L378] SORT_5 var_87_arg_1 = var_83; [L379] SORT_5 var_87_arg_2 = var_82; [L380] SORT_5 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L381] SORT_3 var_92_arg_0 = var_91; [L382] SORT_5 var_92_arg_1 = var_88; [L383] SORT_5 var_92_arg_2 = var_87; [L384] SORT_5 var_92 = var_92_arg_0 ? var_92_arg_1 : var_92_arg_2; [L385] SORT_3 var_97_arg_0 = var_96; [L386] SORT_5 var_97_arg_1 = var_93; [L387] SORT_5 var_97_arg_2 = var_92; [L388] SORT_5 var_97 = var_97_arg_0 ? var_97_arg_1 : var_97_arg_2; [L389] SORT_3 var_102_arg_0 = var_101; [L390] SORT_5 var_102_arg_1 = var_98; [L391] SORT_5 var_102_arg_2 = var_97; [L392] SORT_5 var_102 = var_102_arg_0 ? var_102_arg_1 : var_102_arg_2; [L393] SORT_3 var_107_arg_0 = var_106; [L394] SORT_5 var_107_arg_1 = var_103; [L395] SORT_5 var_107_arg_2 = var_102; [L396] SORT_5 var_107 = var_107_arg_0 ? var_107_arg_1 : var_107_arg_2; [L397] SORT_3 var_112_arg_0 = var_111; [L398] SORT_5 var_112_arg_1 = var_108; [L399] SORT_5 var_112_arg_2 = var_107; [L400] SORT_5 var_112 = var_112_arg_0 ? var_112_arg_1 : var_112_arg_2; [L401] SORT_3 var_117_arg_0 = var_116; [L402] SORT_5 var_117_arg_1 = var_113; [L403] SORT_5 var_117_arg_2 = var_112; [L404] SORT_5 var_117 = var_117_arg_0 ? var_117_arg_1 : var_117_arg_2; [L405] SORT_3 var_122_arg_0 = var_121; [L406] SORT_5 var_122_arg_1 = var_118; [L407] SORT_5 var_122_arg_2 = var_117; [L408] SORT_5 var_122 = var_122_arg_0 ? var_122_arg_1 : var_122_arg_2; [L409] SORT_3 var_127_arg_0 = var_126; [L410] SORT_5 var_127_arg_1 = var_123; [L411] SORT_5 var_127_arg_2 = var_122; [L412] SORT_5 var_127 = var_127_arg_0 ? var_127_arg_1 : var_127_arg_2; [L413] SORT_3 var_132_arg_0 = var_131; [L414] SORT_5 var_132_arg_1 = var_128; [L415] SORT_5 var_132_arg_2 = var_127; [L416] SORT_5 var_132 = var_132_arg_0 ? var_132_arg_1 : var_132_arg_2; [L417] SORT_3 var_136_arg_0 = var_135; [L418] SORT_5 var_136_arg_1 = var_90; [L419] SORT_5 var_136_arg_2 = var_132; [L420] SORT_5 var_136 = var_136_arg_0 ? var_136_arg_1 : var_136_arg_2; [L421] SORT_3 var_141_arg_0 = var_140; [L422] SORT_5 var_141_arg_1 = var_137; [L423] SORT_5 var_141_arg_2 = var_136; [L424] SORT_5 var_141 = var_141_arg_0 ? var_141_arg_1 : var_141_arg_2; [L425] SORT_5 var_143_arg_0 = var_141; [L426] SORT_142 var_143 = var_143_arg_0 >> 0; [L427] SORT_142 var_144_arg_0 = var_143; [L428] var_144_arg_0 = var_144_arg_0 & mask_SORT_142 [L429] SORT_5 var_144 = var_144_arg_0; [L430] SORT_5 var_146_arg_0 = var_144; [L431] SORT_5 var_146_arg_1 = var_145; [L432] SORT_3 var_146 = var_146_arg_0 == var_146_arg_1; [L433] SORT_3 var_147_arg_0 = var_146; [L434] SORT_3 var_147 = ~var_147_arg_0; [L435] SORT_3 var_149_arg_0 = var_147; [L436] SORT_3 var_149 = ~var_149_arg_0; [L437] SORT_3 var_150_arg_0 = var_148; [L438] SORT_3 var_150_arg_1 = var_149; [L439] SORT_3 var_150 = var_150_arg_0 & var_150_arg_1; [L440] var_150 = var_150 & mask_SORT_3 [L441] SORT_3 bad_151_arg_0 = var_150; [L442] CALL __VERIFIER_assert(!(bad_151_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: 2.9s, 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, 1.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:33:25,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/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_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/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_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/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_017a7d5f-0020-435b-9288-62d262da13f9/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 326521f65d530a85812f1d291278e004c4dab91ba597589c76a106156950042a --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-26 00:33:27,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:33:27,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:33:27,495 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:33:27,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:33:27,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:33:27,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:33:27,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:33:27,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:33:27,517 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:33:27,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:33:27,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:33:27,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:33:27,526 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:33:27,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:33:27,533 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:33:27,539 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:33:27,540 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:33:27,542 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:33:27,544 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:33:27,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:33:27,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:33:27,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:33:27,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:33:27,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:33:27,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:33:27,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:33:27,560 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:33:27,560 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:33:27,561 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:33:27,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:33:27,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:33:27,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:33:27,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:33:27,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:33:27,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:33:27,570 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:33:27,572 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:33:27,572 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:33:27,573 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:33:27,574 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:33:27,579 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-26 00:33:27,613 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:33:27,613 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:33:27,614 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:33:27,614 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:33:27,615 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:33:27,615 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:33:27,615 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:33:27,615 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:33:27,616 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:33:27,616 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:33:27,616 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:33:27,616 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:33:27,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:33:27,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:33:27,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:33:27,618 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:33:27,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:33:27,618 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:33:27,618 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:33:27,618 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:33:27,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:33:27,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:33:27,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:33:27,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:33:27,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:33:27,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:33:27,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:27,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:33:27,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:33:27,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:33:27,621 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:33:27,621 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:33:27,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:33:27,622 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:33:27,622 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:33:27,622 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_017a7d5f-0020-435b-9288-62d262da13f9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 326521f65d530a85812f1d291278e004c4dab91ba597589c76a106156950042a [2022-11-26 00:33:27,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:33:27,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:33:27,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:33:27,987 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:33:27,988 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:33:27,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2022-11-26 00:33:31,138 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:33:31,432 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:33:31,434 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c [2022-11-26 00:33:31,446 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data/1d68d6d20/a32bb11fc29341a28ff01fe307912b82/FLAGe44f19d75 [2022-11-26 00:33:31,469 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/data/1d68d6d20/a32bb11fc29341a28ff01fe307912b82 [2022-11-26 00:33:31,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:33:31,474 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:33:31,476 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:31,477 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:33:31,481 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:33:31,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:31" (1/1) ... [2022-11-26 00:33:31,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@522831c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:31, skipping insertion in model container [2022-11-26 00:33:31,486 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:31" (1/1) ... [2022-11-26 00:33:31,494 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:33:31,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:33:31,729 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_017a7d5f-0020-435b-9288-62d262da13f9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1107,1120] [2022-11-26 00:33:32,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:32,015 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:33:32,030 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_017a7d5f-0020-435b-9288-62d262da13f9/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.Huffman_dec.c[1107,1120] [2022-11-26 00:33:32,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:32,137 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:33:32,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32 WrapperNode [2022-11-26 00:33:32,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:32,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:32,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:33:32,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:33:32,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,252 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 763 [2022-11-26 00:33:32,253 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:32,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:33:32,254 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:33:32,254 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:33:32,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,306 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,331 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:33:32,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:33:32,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:33:32,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:33:32,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (1/1) ... [2022-11-26 00:33:32,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:32,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:32,408 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:33:32,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:33:32,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:33:32,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:33:32,765 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:33:32,767 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:33:33,615 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:33:33,622 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:33:33,622 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:33:33,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:33 BoogieIcfgContainer [2022-11-26 00:33:33,624 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:33:33,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:33:33,639 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:33:33,642 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:33:33,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:33:31" (1/3) ... [2022-11-26 00:33:33,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c2ecc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:33, skipping insertion in model container [2022-11-26 00:33:33,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:32" (2/3) ... [2022-11-26 00:33:33,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47c2ecc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:33, skipping insertion in model container [2022-11-26 00:33:33,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:33" (3/3) ... [2022-11-26 00:33:33,648 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.Huffman_dec.c [2022-11-26 00:33:33,668 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:33:33,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:33:33,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:33:33,738 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;@12d3795, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:33:33,738 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:33:33,743 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:33,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:33:33,752 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:33,753 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:33:33,753 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:33,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:33,762 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-26 00:33:33,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:33:33,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1515594107] [2022-11-26 00:33:33,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:33,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:33:33,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:33:33,791 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:33:33,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-26 00:33:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:34,246 WARN L261 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 266 conjunts are in the unsatisfiable core [2022-11-26 00:33:34,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:39,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:39,258 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:33:39,259 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:33:39,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1515594107] [2022-11-26 00:33:39,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1515594107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:39,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:39,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:33:39,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426350826] [2022-11-26 00:33:39,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:39,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:33:39,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:33:39,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:33:39,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:33:39,358 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:39,712 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-26 00:33:39,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:33:39,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-26 00:33:39,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:39,723 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:33:39,724 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 00:33:39,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:33:39,730 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:39,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-26 00:33:39,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 00:33:39,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-26 00:33:39,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:39,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-26 00:33:39,766 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-26 00:33:39,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:39,767 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-26 00:33:39,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:33:39,768 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-26 00:33:39,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:33:39,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:39,769 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:39,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:39,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:33:39,985 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:33:39,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:39,986 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-26 00:33:39,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:33:39,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [217751984] [2022-11-26 00:33:39,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:39,988 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:33:39,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:33:39,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-26 00:33:40,025 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-26 00:33:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:40,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-26 00:33:40,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:43,336 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:33:43,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:33:49,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:33:49,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:33:49,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [217751984] [2022-11-26 00:33:49,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [217751984] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:33:49,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1954078149] [2022-11-26 00:33:49,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:49,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:33:49,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:33:49,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:33:49,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-26 00:33:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:50,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 128 conjunts are in the unsatisfiable core [2022-11-26 00:33:50,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:52,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:33:52,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:33:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:33:57,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1954078149] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:33:57,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169013505] [2022-11-26 00:33:57,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:57,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:57,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:57,567 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:57,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:33:58,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:58,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 180 conjunts are in the unsatisfiable core [2022-11-26 00:33:58,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:34:01,532 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:01,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:34:14,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:34:14,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1169013505] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:34:14,365 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-26 00:34:14,365 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 4, 6, 6] total 12 [2022-11-26 00:34:14,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762721173] [2022-11-26 00:34:14,367 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-26 00:34:14,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:34:14,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:34:14,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:34:14,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2022-11-26 00:34:14,369 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:17,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:34:17,819 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2022-11-26 00:34:17,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:34:17,821 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-26 00:34:17,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:34:17,821 INFO L225 Difference]: With dead ends: 16 [2022-11-26 00:34:17,822 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:34:17,822 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=80, Invalid=192, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:34:17,824 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-26 00:34:17,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 10 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-26 00:34:17,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:34:17,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:34:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:17,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:34:17,826 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-11-26 00:34:17,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:34:17,827 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:34:17,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:34:17,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:34:17,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:34:17,830 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:34:17,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:18,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:18,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:34:18,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-26 00:34:18,448 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:34:20,031 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:34:20,031 INFO L895 garLoopResultBuilder]: At program point L787(lines 22 788) the Hoare annotation is: false [2022-11-26 00:34:20,031 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-26 00:34:20,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:34:20,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-26 00:34:20,032 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-26 00:34:20,032 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-26 00:34:20,032 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-26 00:34:20,033 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-26 00:34:20,033 INFO L895 garLoopResultBuilder]: At program point L146-2(lines 146 786) the Hoare annotation is: (let ((.cse0 (= (_ bv83 32) |ULTIMATE.start_main_~var_128~0#1|)) (.cse1 (= (_ bv66 32) |ULTIMATE.start_main_~var_41~0#1|)) (.cse2 (= (_ bv85 32) |ULTIMATE.start_main_~var_93~0#1|)) (.cse3 (= (_ bv70 32) |ULTIMATE.start_main_~var_83~0#1|)) (.cse4 (= (_ bv84 32) |ULTIMATE.start_main_~var_98~0#1|)) (.cse5 (= (_ bv82 32) |ULTIMATE.start_main_~var_108~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_137~0#1| (_ bv69 32))) (.cse7 (= (_ bv68 32) |ULTIMATE.start_main_~var_64~0#1|)) (.cse8 (= (_ bv88 32) |ULTIMATE.start_main_~var_21~0#1|)) (.cse9 (= (_ bv86 32) |ULTIMATE.start_main_~var_36~0#1|)) (.cse10 (= (_ bv80 32) |ULTIMATE.start_main_~var_88~0#1|)) (.cse11 (= (_ bv76 32) |ULTIMATE.start_main_~var_61~0#1|)) (.cse12 (= (_ bv75 32) |ULTIMATE.start_main_~var_26~0#1|)) (.cse13 (= |ULTIMATE.start_main_~var_6~0#1| (_ bv0 32))) (.cse14 (= |ULTIMATE.start_main_~var_145~0#1| (_ bv255 32))) (.cse15 (= (_ bv78 32) |ULTIMATE.start_main_~var_103~0#1|)) (.cse16 (= |ULTIMATE.start_main_~var_123~0#1| (_ bv65 32))) (.cse17 (= (_ bv79 32) |ULTIMATE.start_main_~var_113~0#1|)) (.cse18 (= |ULTIMATE.start_main_~var_90~0#1| (_ bv32 32))) (.cse19 (= (_ bv89 32) |ULTIMATE.start_main_~var_51~0#1|)) (.cse20 (= (_ bv67 32) |ULTIMATE.start_main_~var_78~0#1|)) (.cse21 (= |ULTIMATE.start_main_~var_31~0#1| (_ bv81 32))) (.cse22 (= (_ bv72 32) |ULTIMATE.start_main_~var_69~0#1|)) (.cse23 (= (_ bv90 32) |ULTIMATE.start_main_~var_16~0#1|)) (.cse24 (= (_ bv73 32) |ULTIMATE.start_main_~var_118~0#1|)) (.cse25 (= (_ bv74 32) |ULTIMATE.start_main_~var_7~0#1|)) (.cse26 (= |ULTIMATE.start_main_~var_59~0#1| (_ bv87 32))) (.cse27 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse28 (= |ULTIMATE.start_main_~var_46~0#1| (_ bv77 32))) (.cse29 (= |ULTIMATE.start_main_~var_55~0#1| (_ bv71 32)))) (or (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23 .cse24 .cse25 .cse26 .cse27 .cse28 .cse29) (and .cse0 .cse1 (= (_ bv25 32) |ULTIMATE.start_main_~var_110~0#1|) (= (_ bv33 32) |ULTIMATE.start_main_~var_85~0#1|) (= (_ bv122 32) |ULTIMATE.start_main_~var_48~0#1|) .cse2 (= (_ bv609 32) |ULTIMATE.start_main_~var_18~0#1|) (= (_ bv34 32) |ULTIMATE.start_main_~var_80~0#1|) (= (_ bv2 32) |ULTIMATE.start_main_~var_171~0#1|) .cse3 .cse4 (= |ULTIMATE.start_main_~var_75~0#1| (_ bv38 32)) (= (_ bv22 32) |ULTIMATE.start_main_~var_125~0#1|) .cse5 (= (_ bv244 32) |ULTIMATE.start_main_~var_38~0#1|) .cse6 (= (_ bv17 32) |ULTIMATE.start_main_~var_130~0#1|) .cse7 .cse8 .cse9 (= (_ bv0 16) |ULTIMATE.start_main_~state_10~0#1|) (= |ULTIMATE.start_main_~var_139~0#1| (_ bv9 32)) (= |ULTIMATE.start_main_~var_33~0#1| (_ bv303 32)) .cse10 .cse11 .cse12 .cse13 .cse14 (= (_ bv59 32) |ULTIMATE.start_main_~var_66~0#1|) .cse15 .cse16 (= (_ bv31 32) |ULTIMATE.start_main_~var_95~0#1|) .cse17 .cse18 (= |ULTIMATE.start_main_~var_13~0#1| (_ bv610 32)) .cse19 .cse20 (= |ULTIMATE.start_main_~var_71~0#1| (_ bv43 32)) (= |ULTIMATE.start_main_~var_23~0#1| (_ bv306 32)) (= |ULTIMATE.start_main_~var_115~0#1| (_ bv24 32)) (= |ULTIMATE.start_main_~var_164~0#1| (_ bv0 32)) (= |ULTIMATE.start_main_~var_170~0#1| (_ bv1 32)) .cse21 (= (_ bv26 32) |ULTIMATE.start_main_~var_105~0#1|) (= |ULTIMATE.start_main_~var_100~0#1| (_ bv30 32)) (= |ULTIMATE.start_main_~var_43~0#1| (_ bv243 32)) (= (_ bv13 32) |ULTIMATE.start_main_~var_134~0#1|) .cse22 .cse23 (= (_ bv305 32) |ULTIMATE.start_main_~var_28~0#1|) (= (_ bv23 32) |ULTIMATE.start_main_~var_120~0#1|) .cse24 .cse25 .cse26 (= |ULTIMATE.start_main_~var_162~0#1| (_ bv0 8)) .cse27 .cse28 .cse29 (= (_ bv1023 16) |ULTIMATE.start_main_~mask_SORT_8~0#1|)))) [2022-11-26 00:34:20,034 INFO L899 garLoopResultBuilder]: For program point L146-3(lines 146 786) no Hoare annotation was computed. [2022-11-26 00:34:20,038 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:34:20,040 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:34:20,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:34:20 BoogieIcfgContainer [2022-11-26 00:34:20,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:34:20,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:34:20,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:34:20,061 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:34:20,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:33" (3/4) ... [2022-11-26 00:34:20,065 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:34:20,086 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-26 00:34:20,088 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:34:20,089 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:34:20,241 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:34:20,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:34:20,242 INFO L158 Benchmark]: Toolchain (without parser) took 48768.59ms. Allocated memory was 75.5MB in the beginning and 595.6MB in the end (delta: 520.1MB). Free memory was 49.3MB in the beginning and 239.6MB in the end (delta: -190.2MB). Peak memory consumption was 328.0MB. Max. memory is 16.1GB. [2022-11-26 00:34:20,243 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:34:20,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 661.66ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 37.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:34:20,243 INFO L158 Benchmark]: Boogie Procedure Inliner took 114.11ms. Allocated memory is still 75.5MB. Free memory was 37.8MB in the beginning and 31.8MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-26 00:34:20,244 INFO L158 Benchmark]: Boogie Preprocessor took 90.48ms. Allocated memory is still 75.5MB. Free memory was 31.8MB in the beginning and 49.5MB in the end (delta: -17.7MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-11-26 00:34:20,244 INFO L158 Benchmark]: RCFGBuilder took 1279.74ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 49.5MB in the beginning and 42.3MB in the end (delta: 7.2MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2022-11-26 00:34:20,245 INFO L158 Benchmark]: TraceAbstraction took 46434.09ms. Allocated memory was 92.3MB in the beginning and 595.6MB in the end (delta: 503.3MB). Free memory was 41.6MB in the beginning and 251.1MB in the end (delta: -209.5MB). Peak memory consumption was 294.1MB. Max. memory is 16.1GB. [2022-11-26 00:34:20,245 INFO L158 Benchmark]: Witness Printer took 180.93ms. Allocated memory is still 595.6MB. Free memory was 250.0MB in the beginning and 239.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:34:20,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 56.6MB. Free memory was 34.4MB in the beginning and 34.3MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 661.66ms. Allocated memory is still 75.5MB. Free memory was 49.2MB in the beginning and 37.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 114.11ms. Allocated memory is still 75.5MB. Free memory was 37.8MB in the beginning and 31.8MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.48ms. Allocated memory is still 75.5MB. Free memory was 31.8MB in the beginning and 49.5MB in the end (delta: -17.7MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * RCFGBuilder took 1279.74ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 49.5MB in the beginning and 42.3MB in the end (delta: 7.2MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * TraceAbstraction took 46434.09ms. Allocated memory was 92.3MB in the beginning and 595.6MB in the end (delta: 503.3MB). Free memory was 41.6MB in the beginning and 251.1MB in the end (delta: -209.5MB). Peak memory consumption was 294.1MB. Max. memory is 16.1GB. * Witness Printer took 180.93ms. Allocated memory is still 595.6MB. Free memory was 250.0MB in the beginning and 239.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 10.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 274 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 616 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 37.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 46 ConstructedInterpolants, 12 QuantifiedInterpolants, 7120 SizeOfPredicates, 815 NumberOfNonLiveVariables, 3215 ConjunctsInSsa, 702 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 4/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((83bv32 == var_128 && 66bv32 == var_41) && 85bv32 == var_93) && 70bv32 == var_83) && cond == 1bv32) && 84bv32 == var_98) && 82bv32 == var_108) && var_137 == 69bv32) && 68bv32 == var_64) && 88bv32 == var_21) && 86bv32 == var_36) && 80bv32 == var_88) && 76bv32 == var_61) && 75bv32 == var_26) && var_6 == 0bv32) && var_145 == 255bv32) && 78bv32 == var_103) && var_123 == 65bv32) && 79bv32 == var_113) && var_90 == 32bv32) && 89bv32 == var_51) && 67bv32 == var_78) && var_31 == 81bv32) && 72bv32 == var_69) && 90bv32 == var_16) && 73bv32 == var_118) && 74bv32 == var_7) && var_59 == 87bv32) && 1bv8 == mask_SORT_3) && var_46 == 77bv32) && var_55 == 71bv32) || ((((((((((((((((((((((((((((((((((((((((((((((((((((((((((83bv32 == var_128 && 66bv32 == var_41) && 25bv32 == var_110) && 33bv32 == var_85) && 122bv32 == var_48) && 85bv32 == var_93) && 609bv32 == var_18) && 34bv32 == var_80) && 2bv32 == var_171) && 70bv32 == var_83) && 84bv32 == var_98) && var_75 == 38bv32) && 22bv32 == var_125) && 82bv32 == var_108) && 244bv32 == var_38) && var_137 == 69bv32) && 17bv32 == var_130) && 68bv32 == var_64) && 88bv32 == var_21) && 86bv32 == var_36) && 0bv16 == state_10) && var_139 == 9bv32) && var_33 == 303bv32) && 80bv32 == var_88) && 76bv32 == var_61) && 75bv32 == var_26) && var_6 == 0bv32) && var_145 == 255bv32) && 59bv32 == var_66) && 78bv32 == var_103) && var_123 == 65bv32) && 31bv32 == var_95) && 79bv32 == var_113) && var_90 == 32bv32) && var_13 == 610bv32) && 89bv32 == var_51) && 67bv32 == var_78) && var_71 == 43bv32) && var_23 == 306bv32) && var_115 == 24bv32) && var_164 == 0bv32) && var_170 == 1bv32) && var_31 == 81bv32) && 26bv32 == var_105) && var_100 == 30bv32) && var_43 == 243bv32) && 13bv32 == var_134) && 72bv32 == var_69) && 90bv32 == var_16) && 305bv32 == var_28) && 23bv32 == var_120) && 73bv32 == var_118) && 74bv32 == var_7) && var_59 == 87bv32) && var_162 == 0bv8) && 1bv8 == mask_SORT_3) && var_46 == 77bv32) && var_55 == 71bv32) && 1023bv16 == mask_SORT_8) RESULT: Ultimate proved your program to be correct! [2022-11-26 00:34:20,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_017a7d5f-0020-435b-9288-62d262da13f9/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 Writing output log to file Ultimate.log Result: TRUE