./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba --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 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 --- 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-b5237d8 [2022-11-22 01:09:33,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:33,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:33,443 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:33,443 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:33,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:33,446 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:33,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:33,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:33,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:33,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:33,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:33,453 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:33,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:33,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:33,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:33,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:33,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:33,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:33,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:33,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:33,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:33,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:33,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:33,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:33,488 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:33,488 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:33,489 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:33,490 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:33,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:33,492 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:33,492 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:33,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:33,494 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:33,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:33,497 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:33,498 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:33,498 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:33,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:33,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:33,502 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:33,503 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-22 01:09:33,530 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:33,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:33,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:33,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:33,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:33,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:33,533 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:33,534 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:33,534 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:33,534 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:09:33,535 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:33,536 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:33,536 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:09:33,536 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:09:33,536 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:33,537 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:09:33,538 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:09:33,538 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:09:33,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:33,540 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:09:33,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:33,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:09:33,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:33,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:09:33,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:09:33,541 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:33,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:09:33,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:33,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:33,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:33,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:33,543 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:09:33,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:33,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:09:33,543 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:09:33,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:09:33,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:09:33,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:33,544 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_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 [2022-11-22 01:09:33,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:33,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:33,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:33,850 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:33,850 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:33,851 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-22 01:09:36,877 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:37,117 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:37,117 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-22 01:09:37,129 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data/386cd8066/ec633b1740334400a05a495071b81dfe/FLAG0f7cfae8f [2022-11-22 01:09:37,152 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data/386cd8066/ec633b1740334400a05a495071b81dfe [2022-11-22 01:09:37,160 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:37,161 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:37,164 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:37,165 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:37,169 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:37,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13451612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37, skipping insertion in model container [2022-11-22 01:09:37,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:37,208 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:37,346 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_a274ae55-77f1-4017-a44b-9cca2b69179e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-22 01:09:37,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:37,464 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:37,481 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_a274ae55-77f1-4017-a44b-9cca2b69179e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-22 01:09:37,540 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:37,556 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:37,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37 WrapperNode [2022-11-22 01:09:37,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:37,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:37,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:37,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:37,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,576 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,617 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 361 [2022-11-22 01:09:37,617 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:37,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:37,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:37,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:37,628 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,643 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,649 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:37,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:37,660 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:37,660 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:37,661 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (1/1) ... [2022-11-22 01:09:37,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:37,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:37,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:37,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:37,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:37,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:37,889 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:37,891 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:09:38,959 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:09:38,979 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:09:38,979 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:09:38,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:38 BoogieIcfgContainer [2022-11-22 01:09:38,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:09:38,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:09:38,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:09:38,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:09:38,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:37" (1/3) ... [2022-11-22 01:09:38,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11084b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:38, skipping insertion in model container [2022-11-22 01:09:38,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:37" (2/3) ... [2022-11-22 01:09:38,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11084b42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:38, skipping insertion in model container [2022-11-22 01:09:38,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:38" (3/3) ... [2022-11-22 01:09:38,992 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-22 01:09:39,013 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:09:39,013 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:09:39,072 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:09:39,084 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;@700ef136, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:09:39,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:09:39,089 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) [2022-11-22 01:09:39,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-22 01:09:39,096 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:39,097 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-22 01:09:39,098 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:39,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:39,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-22 01:09:39,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:09:39,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506383395] [2022-11-22 01:09:39,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:39,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:09:39,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:09:39,396 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:09:39,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:09:39,494 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:09:39,495 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:09:39,497 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:09:39,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:09:39,503 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:09:39,507 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:09:39,526 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-22 01:09:39,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:09:39 BoogieIcfgContainer [2022-11-22 01:09:39,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:09:39,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:09:39,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:09:39,535 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:09:39,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:38" (3/4) ... [2022-11-22 01:09:39,539 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:09:39,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:09:39,540 INFO L158 Benchmark]: Toolchain (without parser) took 2378.88ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 117.3MB in the beginning and 83.2MB in the end (delta: 34.1MB). Peak memory consumption was 64.4MB. Max. memory is 16.1GB. [2022-11-22 01:09:39,541 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:09:39,541 INFO L158 Benchmark]: CACSL2BoogieTranslator took 392.51ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 100.3MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:09:39,542 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.69ms. Allocated memory is still 151.0MB. Free memory was 99.8MB in the beginning and 96.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-22 01:09:39,542 INFO L158 Benchmark]: Boogie Preprocessor took 41.02ms. Allocated memory is still 151.0MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:09:39,543 INFO L158 Benchmark]: RCFGBuilder took 1322.63ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 93.7MB in the beginning and 110.5MB in the end (delta: -16.7MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. [2022-11-22 01:09:39,544 INFO L158 Benchmark]: TraceAbstraction took 549.35ms. Allocated memory is still 182.5MB. Free memory was 110.5MB in the beginning and 83.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-22 01:09:39,544 INFO L158 Benchmark]: Witness Printer took 4.57ms. Allocated memory is still 182.5MB. Free memory is still 83.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:09:39,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 111.1MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 392.51ms. Allocated memory is still 151.0MB. Free memory was 117.3MB in the beginning and 100.3MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.69ms. Allocated memory is still 151.0MB. Free memory was 99.8MB in the beginning and 96.3MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.02ms. Allocated memory is still 151.0MB. Free memory was 96.3MB in the beginning and 94.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1322.63ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 93.7MB in the beginning and 110.5MB in the end (delta: -16.7MB). Peak memory consumption was 49.7MB. Max. memory is 16.1GB. * TraceAbstraction took 549.35ms. Allocated memory is still 182.5MB. Free memory was 110.5MB in the beginning and 83.2MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.57ms. Allocated memory is still 182.5MB. Free memory is still 83.2MB. 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 145, overapproximation of bitwiseOr at line 143, overapproximation of bitwiseAnd at line 109. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 32); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (32 - 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_16 mask_SORT_16 = (SORT_16)-1 >> (sizeof(SORT_16) * 8 - 2); [L32] const SORT_16 msb_SORT_16 = (SORT_16)1 << (2 - 1); [L34] const SORT_59 mask_SORT_59 = (SORT_59)-1 >> (sizeof(SORT_59) * 8 - 3); [L35] const SORT_59 msb_SORT_59 = (SORT_59)1 << (3 - 1); [L37] const SORT_16 var_17 = 0; [L38] const SORT_16 var_20 = 3; [L39] const SORT_3 var_22 = 1; [L40] const SORT_3 var_36 = 0; [L41] const SORT_16 var_77 = 2; [L42] const SORT_16 var_80 = 1; [L43] const SORT_59 var_92 = 0; [L45] SORT_1 input_2; [L46] SORT_3 input_4; [L47] SORT_1 input_5; [L48] SORT_3 input_6; [L49] SORT_3 input_7; [L50] SORT_3 input_8; [L51] SORT_1 input_9; [L52] SORT_3 input_10; [L53] SORT_3 input_11; [L54] SORT_1 input_12; [L55] SORT_3 input_13; [L56] SORT_3 input_14; [L57] SORT_3 input_15; [L58] SORT_1 input_32; [L59] SORT_3 input_34; [L60] SORT_1 input_39; [L61] SORT_3 input_41; [L62] SORT_1 input_47; [L63] SORT_1 input_53; [L64] SORT_1 input_55; [L65] SORT_1 input_57; [L66] SORT_59 input_60; [L67] SORT_59 input_66; [L68] SORT_1 input_69; [L69] SORT_3 input_73; [L71] SORT_16 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_16; [L72] SORT_3 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L73] SORT_3 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L74] SORT_3 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L75] SORT_3 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L76] SORT_3 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L77] SORT_3 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L78] SORT_3 state_62 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L79] SORT_3 state_64 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L80] SORT_3 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L82] SORT_16 init_19_arg_1 = var_17; [L83] state_18 = init_19_arg_1 [L84] SORT_3 init_24_arg_1 = var_22; [L85] state_23 = init_24_arg_1 [L86] SORT_3 init_38_arg_1 = var_36; [L87] state_37 = init_38_arg_1 [L88] SORT_3 init_44_arg_1 = var_36; [L89] state_43 = init_44_arg_1 [L90] SORT_3 init_46_arg_1 = var_36; [L91] state_45 = init_46_arg_1 [L92] SORT_3 init_50_arg_1 = var_36; [L93] state_49 = init_50_arg_1 [L94] SORT_3 init_52_arg_1 = var_36; [L95] state_51 = init_52_arg_1 [L96] SORT_3 init_63_arg_1 = var_36; [L97] state_62 = init_63_arg_1 [L98] SORT_3 init_65_arg_1 = var_36; [L99] state_64 = init_65_arg_1 [L100] SORT_3 init_72_arg_1 = var_36; [L101] state_71 = init_72_arg_1 VAL [init_19_arg_1=0, init_24_arg_1=1, init_38_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_63_arg_1=0, init_65_arg_1=0, init_72_arg_1=0, mask_SORT_1=4294967295, mask_SORT_16=3, mask_SORT_3=1, mask_SORT_59=7, msb_SORT_1=2147483648, msb_SORT_16=2, msb_SORT_3=1, msb_SORT_59=4, state_18=0, state_23=1, state_37=0, state_43=0, state_45=0, state_49=0, state_51=0, state_62=0, state_64=0, state_71=0, var_17=0, var_20=3, var_22=1, var_36=0, var_77=2, var_80=1, var_92=0] [L104] input_2 = __VERIFIER_nondet_uint() [L105] input_4 = __VERIFIER_nondet_uchar() [L106] input_5 = __VERIFIER_nondet_uint() [L107] input_6 = __VERIFIER_nondet_uchar() [L108] input_7 = __VERIFIER_nondet_uchar() [L109] input_7 = input_7 & mask_SORT_3 [L110] input_8 = __VERIFIER_nondet_uchar() [L111] input_8 = input_8 & mask_SORT_3 [L112] input_9 = __VERIFIER_nondet_uint() [L113] input_10 = __VERIFIER_nondet_uchar() [L114] input_10 = input_10 & mask_SORT_3 [L115] input_11 = __VERIFIER_nondet_uchar() [L116] input_11 = input_11 & mask_SORT_3 [L117] input_12 = __VERIFIER_nondet_uint() [L118] input_13 = __VERIFIER_nondet_uchar() [L119] input_14 = __VERIFIER_nondet_uchar() [L120] input_15 = __VERIFIER_nondet_uchar() [L121] input_32 = __VERIFIER_nondet_uint() [L122] input_34 = __VERIFIER_nondet_uchar() [L123] input_39 = __VERIFIER_nondet_uint() [L124] input_41 = __VERIFIER_nondet_uchar() [L125] input_47 = __VERIFIER_nondet_uint() [L126] input_53 = __VERIFIER_nondet_uint() [L127] input_55 = __VERIFIER_nondet_uint() [L128] input_57 = __VERIFIER_nondet_uint() [L129] input_60 = __VERIFIER_nondet_uchar() [L130] input_66 = __VERIFIER_nondet_uchar() [L131] input_69 = __VERIFIER_nondet_uint() [L132] input_73 = __VERIFIER_nondet_uchar() [L135] SORT_16 var_21_arg_0 = state_18; [L136] SORT_16 var_21_arg_1 = var_20; [L137] SORT_3 var_21 = var_21_arg_0 != var_21_arg_1; [L138] SORT_3 var_25_arg_0 = state_23; [L139] SORT_3 var_25_arg_1 = var_22; [L140] SORT_3 var_25 = var_25_arg_0 == var_25_arg_1; [L141] SORT_3 var_26_arg_0 = var_21; [L142] SORT_3 var_26_arg_1 = var_25; [L143] SORT_3 var_26 = var_26_arg_0 | var_26_arg_1; [L144] SORT_3 var_29_arg_0 = var_26; [L145] SORT_3 var_29 = ~var_29_arg_0; [L146] SORT_3 var_30_arg_0 = var_22; [L147] SORT_3 var_30_arg_1 = var_29; [L148] SORT_3 var_30 = var_30_arg_0 & var_30_arg_1; [L149] var_30 = var_30 & mask_SORT_3 [L150] SORT_3 bad_31_arg_0 = var_30; [L151] CALL __VERIFIER_assert(!(bad_31_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:09:39,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba --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 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 --- 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-b5237d8 [2022-11-22 01:09:42,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:09:42,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:09:42,118 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:09:42,119 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:09:42,123 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:09:42,126 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:09:42,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:09:42,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:09:42,138 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:09:42,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:09:42,142 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:09:42,142 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:09:42,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:09:42,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:09:42,153 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:09:42,154 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:09:42,155 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:09:42,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:09:42,162 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:09:42,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:09:42,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:09:42,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:09:42,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:09:42,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:09:42,180 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:09:42,181 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:09:42,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:09:42,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:09:42,186 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:09:42,186 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:09:42,188 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:09:42,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:09:42,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:09:42,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:09:42,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:09:42,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:09:42,217 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:09:42,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:09:42,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:09:42,219 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:09:42,224 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-22 01:09:42,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:09:42,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:09:42,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:09:42,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:09:42,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:09:42,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:09:42,268 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:09:42,269 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:09:42,269 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:09:42,269 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:09:42,270 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:09:42,271 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:09:42,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:09:42,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:09:42,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:09:42,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:09:42,273 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:09:42,274 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:09:42,274 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:09:42,274 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:09:42,274 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:09:42,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:09:42,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:09:42,275 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:09:42,276 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:09:42,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:09:42,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:42,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:09:42,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:09:42,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:09:42,277 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:09:42,278 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:09:42,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:09:42,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:09:42,279 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:09:42,279 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_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b778e020f927dcd69e8c93a4e5f815b351554054566b59c07b83f21be0bc1f1 [2022-11-22 01:09:42,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:09:42,750 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:09:42,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:09:42,755 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:09:42,755 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:09:42,757 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-22 01:09:45,921 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:09:46,199 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:09:46,199 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-22 01:09:46,222 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data/5d0a22b78/28bb62fd42cf4b37b74d4ea7b8a08928/FLAGeb142a9ad [2022-11-22 01:09:46,236 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/data/5d0a22b78/28bb62fd42cf4b37b74d4ea7b8a08928 [2022-11-22 01:09:46,239 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:09:46,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:09:46,242 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:46,242 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:09:46,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:09:46,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,248 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24185c1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46, skipping insertion in model container [2022-11-22 01:09:46,248 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,256 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:09:46,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:09:46,499 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_a274ae55-77f1-4017-a44b-9cca2b69179e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-22 01:09:46,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:46,598 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:09:46,609 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_a274ae55-77f1-4017-a44b-9cca2b69179e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_bcuvis32.c[1107,1120] [2022-11-22 01:09:46,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:09:46,703 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:09:46,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46 WrapperNode [2022-11-22 01:09:46,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:09:46,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:46,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:09:46,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:09:46,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,819 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 361 [2022-11-22 01:09:46,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:09:46,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:09:46,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:09:46,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:09:46,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,898 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:09:46,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:09:46,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:09:46,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:09:46,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (1/1) ... [2022-11-22 01:09:46,927 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:09:46,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:46,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:09:46,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:09:47,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:09:47,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:09:47,237 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:09:47,244 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:09:47,719 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:09:47,727 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:09:47,727 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:09:47,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:47 BoogieIcfgContainer [2022-11-22 01:09:47,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:09:47,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:09:47,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:09:47,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:09:47,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:09:46" (1/3) ... [2022-11-22 01:09:47,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce8ddbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:47, skipping insertion in model container [2022-11-22 01:09:47,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:09:46" (2/3) ... [2022-11-22 01:09:47,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce8ddbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:09:47, skipping insertion in model container [2022-11-22 01:09:47,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:47" (3/3) ... [2022-11-22 01:09:47,740 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_bcuvis32.c [2022-11-22 01:09:47,760 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:09:47,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:09:47,811 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:09:47,818 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;@2d097b68, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:09:47,818 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:09:47,822 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) [2022-11-22 01:09:47,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 01:09:47,829 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:47,830 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 01:09:47,830 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:47,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:47,836 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-22 01:09:47,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:09:47,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239811642] [2022-11-22 01:09:47,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:47,852 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 [2022-11-22 01:09:47,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:09:47,859 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:09:47,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:48,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-22 01:09:48,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:48,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:48,322 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:09:48,323 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:09:48,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239811642] [2022-11-22 01:09:48,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239811642] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:09:48,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:09:48,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-22 01:09:48,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508822256] [2022-11-22 01:09:48,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:09:48,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:09:48,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:09:48,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:09:48,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:09:48,382 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) [2022-11-22 01:09:48,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:48,484 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-22 01:09:48,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-22 01:09:48,487 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 [2022-11-22 01:09:48,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:48,497 INFO L225 Difference]: With dead ends: 20 [2022-11-22 01:09:48,497 INFO L226 Difference]: Without dead ends: 11 [2022-11-22 01:09:48,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 01:09:48,505 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:48,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:09:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-22 01:09:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-22 01:09:48,541 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) [2022-11-22 01:09:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-22 01:09:48,543 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-22 01:09:48,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:48,544 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-22 01:09:48,544 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) [2022-11-22 01:09:48,544 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-22 01:09:48,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-22 01:09:48,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:48,545 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-22 01:09:48,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:48,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:48,760 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:48,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:48,760 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-22 01:09:48,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:09:48,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575477386] [2022-11-22 01:09:48,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:48,762 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 [2022-11-22 01:09:48,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:09:48,764 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:09:48,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:49,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:49,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 01:09:49,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:49,273 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:49,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:49,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:49,828 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:09:49,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [575477386] [2022-11-22 01:09:49,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [575477386] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:09:49,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [935956984] [2022-11-22 01:09:49,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:49,834 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:09:49,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:09:49,889 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:09:49,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 01:09:50,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:50,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-22 01:09:50,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:50,437 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:50,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:50,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [935956984] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:09:50,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [230913228] [2022-11-22 01:09:50,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:09:50,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:09:50,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:09:50,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:09:50,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:09:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:09:51,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-22 01:09:51,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:51,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:09:51,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:51,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [230913228] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:09:51,502 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:09:51,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 6, 6] total 14 [2022-11-22 01:09:51,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829726381] [2022-11-22 01:09:51,504 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:09:51,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:09:51,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:09:51,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:09:51,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:09:51,508 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2022-11-22 01:09:51,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:09:51,758 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-22 01:09:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-22 01:09:51,759 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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 [2022-11-22 01:09:51,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:09:51,760 INFO L225 Difference]: With dead ends: 19 [2022-11-22 01:09:51,760 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 01:09:51,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-11-22 01:09:51,761 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 26 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:09:51,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 27 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:09:51,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 01:09:51,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-22 01:09:51,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-11-22 01:09:51,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-22 01:09:51,767 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 8 [2022-11-22 01:09:51,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:09:51,768 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-22 01:09:51,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 14 states have internal predecessors, (28), 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) [2022-11-22 01:09:51,768 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-22 01:09:51,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-22 01:09:51,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:09:51,769 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-22 01:09:51,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:09:51,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-22 01:09:52,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:52,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:09:52,370 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:09:52,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:09:52,371 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 2 times [2022-11-22 01:09:52,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:09:52,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826109311] [2022-11-22 01:09:52,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:09:52,373 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 [2022-11-22 01:09:52,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:09:52,374 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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) [2022-11-22 01:09:52,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-22 01:09:52,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:09:52,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:09:52,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 130 conjunts are in the unsatisfiable core [2022-11-22 01:09:52,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:09:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:09:56,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:10,541 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:10,541 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:10:10,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826109311] [2022-11-22 01:10:10,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826109311] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:10:10,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1019612406] [2022-11-22 01:10:10,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:10:10,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:10:10,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:10:10,547 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:10:10,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 01:10:11,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:10:11,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:10:11,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 193 conjunts are in the unsatisfiable core [2022-11-22 01:10:11,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:18,652 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:18,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:43,458 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1019612406] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:10:43,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657260929] [2022-11-22 01:10:43,458 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-22 01:10:43,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:10:43,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:10:43,460 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:10:43,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:10:43,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-22 01:10:43,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-22 01:10:43,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 122 conjunts are in the unsatisfiable core [2022-11-22 01:10:43,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:10:47,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:10:47,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:10:54,474 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:10:54,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657260929] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:10:54,475 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:10:54,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7, 7, 11, 9] total 35 [2022-11-22 01:10:54,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360468065] [2022-11-22 01:10:54,476 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:10:54,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-11-22 01:10:54,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:10:54,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-11-22 01:10:54,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=915, Unknown=0, NotChecked=0, Total=1190 [2022-11-22 01:10:54,478 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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) [2022-11-22 01:10:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:10:55,737 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-22 01:10:55,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:10:55,739 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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 14 [2022-11-22 01:10:55,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:10:55,739 INFO L225 Difference]: With dead ends: 16 [2022-11-22 01:10:55,739 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:10:55,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=408, Invalid=1152, Unknown=0, NotChecked=0, Total=1560 [2022-11-22 01:10:55,741 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 30 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:10:55,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 20 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-22 01:10:55,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:10:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:10:55,743 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) [2022-11-22 01:10:55,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:10:55,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-22 01:10:55,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:10:55,744 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:10:55,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.9142857142857144) internal successors, (67), 35 states have internal predecessors, (67), 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) [2022-11-22 01:10:55,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:10:55,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:10:55,748 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:10:55,765 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:55,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:56,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:10:56,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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 [2022-11-22 01:10:56,363 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:10:56,671 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:10:56,673 INFO L895 garLoopResultBuilder]: At program point L102-2(lines 102 351) the Hoare annotation is: (let ((.cse2 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_22~0#1|)))) (.cse5 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse0 (= (_ bv3 8) |ULTIMATE.start_main_~mask_SORT_16~0#1|)) (.cse1 (= (_ bv1 8) |ULTIMATE.start_main_~var_22~0#1|)) (.cse4 (= |ULTIMATE.start_main_~var_20~0#1| (_ bv3 8))) (.cse3 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_3~0#1|)) (.cse6 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_3~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~var_36~0#1| |ULTIMATE.start_main_~state_51~0#1|) (= (_ bv2 8) |ULTIMATE.start_main_~var_77~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_45~0#1|) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse2 .cse3))))) .cse3)) |ULTIMATE.start_main_~state_23~0#1|) (exists ((|v_ULTIMATE.start_main_#t~nondet18#1_7| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet18#1_7|) .cse3)) |ULTIMATE.start_main_~state_64~0#1|)) (= (_ bv1 8) |ULTIMATE.start_main_~var_80~0#1|) (exists ((|ULTIMATE.start_main_~var_130_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_130_arg_2~0#1|))) .cse3)) |ULTIMATE.start_main_~state_49~0#1|)) .cse4 (= |ULTIMATE.start_main_~var_17~0#1| |ULTIMATE.start_main_~state_18~0#1|) .cse5 (= |ULTIMATE.start_main_~var_36~0#1| (_ bv0 8)) (= (_ bv0 8) |ULTIMATE.start_main_~state_62~0#1|) .cse6) (and (or (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) .cse2)))) .cse3))))) .cse3)) |ULTIMATE.start_main_~state_23~0#1|) .cse5) .cse0 .cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= |ULTIMATE.start_main_~var_17~0#1| (_ bv0 8)) .cse4 (exists ((|ULTIMATE.start_main_~var_116_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_116_arg_2~0#1|))) .cse3)) |ULTIMATE.start_main_~state_23~0#1|)) (exists ((|ULTIMATE.start_main_~var_107_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_16~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_107_arg_2~0#1|))))) |ULTIMATE.start_main_~state_18~0#1|)) .cse6))) [2022-11-22 01:10:56,673 INFO L899 garLoopResultBuilder]: For program point L102-3(lines 102 351) no Hoare annotation was computed. [2022-11-22 01:10:56,673 INFO L895 garLoopResultBuilder]: At program point L352(lines 22 353) the Hoare annotation is: false [2022-11-22 01:10:56,674 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-22 01:10:56,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:10:56,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-22 01:10:56,674 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-22 01:10:56,674 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-22 01:10:56,675 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-22 01:10:56,675 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-22 01:10:56,678 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-22 01:10:56,681 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:10:56,690 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-11-22 01:10:56,691 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,692 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,692 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,698 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-11-22 01:10:56,699 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,699 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,699 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:10:56 BoogieIcfgContainer [2022-11-22 01:10:56,701 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:10:56,702 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:10:56,702 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:10:56,703 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:10:56,703 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:09:47" (3/4) ... [2022-11-22 01:10:56,707 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:10:56,725 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-22 01:10:56,729 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-22 01:10:56,729 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:10:56,758 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && var_36 == state_51) && 2bv8 == var_77) && 0bv8 == state_45) && ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23) && (\exists v_ULTIMATE.start_main_#t~nondet18#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet18#1_7), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_64)) && 1bv8 == var_80) && (\exists ULTIMATE.start_main_~var_130_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_130_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_49)) && var_20 == 3bv8) && var_17 == state_18) && 0bv8 == state_18) && var_36 == 0bv8) && 0bv8 == state_62) && 1bv8 == mask_SORT_3) || (((((((((~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0])[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23 || 0bv8 == state_18) && 3bv8 == mask_SORT_16) && 1bv8 == var_22) && cond == 1bv32) && var_17 == 0bv8) && var_20 == 3bv8) && (\exists ULTIMATE.start_main_~var_116_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_116_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23)) && (\exists ULTIMATE.start_main_~var_107_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_16), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_107_arg_2~0#1)[7:0]))[7:0] == state_18)) && 1bv8 == mask_SORT_3) [2022-11-22 01:10:56,793 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:10:56,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:10:56,799 INFO L158 Benchmark]: Toolchain (without parser) took 70558.20ms. Allocated memory was 83.9MB in the beginning and 343.9MB in the end (delta: 260.0MB). Free memory was 60.9MB in the beginning and 284.3MB in the end (delta: -223.4MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2022-11-22 01:10:56,799 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:10:56,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 463.58ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 43.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 01:10:56,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 112.50ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 62.9MB in the end (delta: -19.5MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. [2022-11-22 01:10:56,800 INFO L158 Benchmark]: Boogie Preprocessor took 99.21ms. Allocated memory is still 83.9MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:10:56,800 INFO L158 Benchmark]: RCFGBuilder took 809.87ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 60.5MB in the beginning and 82.0MB in the end (delta: -21.5MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2022-11-22 01:10:56,801 INFO L158 Benchmark]: TraceAbstraction took 68969.83ms. Allocated memory was 113.2MB in the beginning and 343.9MB in the end (delta: 230.7MB). Free memory was 80.9MB in the beginning and 290.6MB in the end (delta: -209.7MB). Peak memory consumption was 202.1MB. Max. memory is 16.1GB. [2022-11-22 01:10:56,801 INFO L158 Benchmark]: Witness Printer took 95.78ms. Allocated memory is still 343.9MB. Free memory was 290.6MB in the beginning and 284.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-22 01:10:56,804 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 83.9MB. Free memory is still 61.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 463.58ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 43.6MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 112.50ms. Allocated memory is still 83.9MB. Free memory was 43.4MB in the beginning and 62.9MB in the end (delta: -19.5MB). Peak memory consumption was 8.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.21ms. Allocated memory is still 83.9MB. Free memory was 62.9MB in the beginning and 60.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 809.87ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 60.5MB in the beginning and 82.0MB in the end (delta: -21.5MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * TraceAbstraction took 68969.83ms. Allocated memory was 113.2MB in the beginning and 343.9MB in the end (delta: 230.7MB). Free memory was 80.9MB in the beginning and 290.6MB in the end (delta: -209.7MB). Peak memory consumption was 202.1MB. Max. memory is 16.1GB. * Witness Printer took 95.78ms. Allocated memory is still 343.9MB. Free memory was 290.6MB in the beginning and 284.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 68.9s, OverallIterations: 3, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 49 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 67 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 11 mSDtfsCounter, 67 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 134 GetRequests, 72 SyntacticMatches, 5 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 15.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=2, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 142 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 312 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 62.8s InterpolantComputationTime, 71 NumberOfCodeBlocks, 71 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 124 ConstructedInterpolants, 59 QuantifiedInterpolants, 10402 SizeOfPredicates, 571 NumberOfNonLiveVariables, 3346 ConjunctsInSsa, 541 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 6/102 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: 102]: Loop Invariant [2022-11-22 01:10:56,826 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-11-22 01:10:56,829 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,830 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,830 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,832 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet18#1_7,QUANTIFIED] [2022-11-22 01:10:56,837 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_130_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,837 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_116_arg_2~0#1,QUANTIFIED] [2022-11-22 01:10:56,838 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_107_arg_2~0#1,QUANTIFIED] Derived loop invariant: ((((((((((((((3bv8 == mask_SORT_16 && 1bv8 == var_22) && var_36 == state_51) && 2bv8 == var_77) && 0bv8 == state_45) && ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23) && (\exists v_ULTIMATE.start_main_#t~nondet18#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet18#1_7), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_64)) && 1bv8 == var_80) && (\exists ULTIMATE.start_main_~var_130_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_130_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_49)) && var_20 == 3bv8) && var_17 == state_18) && 0bv8 == state_18) && var_36 == 0bv8) && 0bv8 == state_62) && 1bv8 == mask_SORT_3) || (((((((((~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(var_22)[7:0])[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0])[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23 || 0bv8 == state_18) && 3bv8 == mask_SORT_16) && 1bv8 == var_22) && cond == 1bv32) && var_17 == 0bv8) && var_20 == 3bv8) && (\exists ULTIMATE.start_main_~var_116_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_116_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_3))[7:0] == state_23)) && (\exists ULTIMATE.start_main_~var_107_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_16), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_107_arg_2~0#1)[7:0]))[7:0] == state_18)) && 1bv8 == mask_SORT_3) RESULT: Ultimate proved your program to be correct! [2022-11-22 01:10:56,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a274ae55-77f1-4017-a44b-9cca2b69179e/bin/utaipan-g80aRyZoba/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