./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.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_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f --- 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 [2022-11-21 13:41:55,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:41:55,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:41:55,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:41:55,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:41:55,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:41:55,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:41:55,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:41:55,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:41:55,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:41:55,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:41:55,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:41:55,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:41:55,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:41:55,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:41:55,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:41:55,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:41:55,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:41:55,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:41:55,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:41:55,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:41:55,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:41:55,455 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:41:55,456 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:41:55,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:41:55,459 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:41:55,460 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:41:55,461 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:41:55,461 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:41:55,462 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:41:55,463 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:41:55,464 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:41:55,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:41:55,465 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:41:55,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:41:55,467 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:41:55,468 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:41:55,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:41:55,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:41:55,469 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:41:55,470 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:41:55,471 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 13:41:55,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:41:55,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:41:55,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:41:55,493 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:41:55,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:41:55,494 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:41:55,495 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:41:55,495 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:41:55,495 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:41:55,496 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:41:55,496 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 13:41:55,496 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:41:55,496 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:41:55,496 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:41:55,497 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:41:55,497 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:41:55,497 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:41:55,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:41:55,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:41:55,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:41:55,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:41:55,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:41:55,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:41:55,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:41:55,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:41:55,499 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 13:41:55,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 13:41:55,499 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:41:55,499 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:41:55,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:41:55,499 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_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f [2022-11-21 13:41:55,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:41:55,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:41:55,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:41:55,852 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:41:55,853 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:41:55,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-21 13:41:58,955 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:41:59,299 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:41:59,301 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-21 13:41:59,326 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data/2ff95b990/2beb41355b684d3abbea58310fc2a55d/FLAGb0e35d201 [2022-11-21 13:41:59,341 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data/2ff95b990/2beb41355b684d3abbea58310fc2a55d [2022-11-21 13:41:59,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:41:59,346 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:41:59,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:41:59,348 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:41:59,351 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:41:59,352 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:59" (1/1) ... [2022-11-21 13:41:59,353 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57112595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:41:59, skipping insertion in model container [2022-11-21 13:41:59,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:41:59" (1/1) ... [2022-11-21 13:41:59,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:41:59,416 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:41:59,650 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_1e987156-5f88-41fa-846b-734e172ab0db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-21 13:42:00,043 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:42:00,049 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:42:00,061 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_1e987156-5f88-41fa-846b-734e172ab0db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-21 13:42:00,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:42:00,330 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:42:00,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00 WrapperNode [2022-11-21 13:42:00,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:42:00,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:00,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:42:00,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:42:00,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,512 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1779 [2022-11-21 13:42:00,513 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:42:00,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:42:00,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:42:00,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:42:00,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,539 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,588 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,597 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:42:00,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:42:00,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:42:00,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:42:00,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (1/1) ... [2022-11-21 13:42:00,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:42:00,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:42:00,741 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:42:00,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:42:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:42:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:42:01,256 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:42:01,258 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:44:19,426 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:44:19,439 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:44:19,449 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:44:19,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:19 BoogieIcfgContainer [2022-11-21 13:44:19,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:44:19,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:44:19,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:44:19,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:44:19,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:41:59" (1/3) ... [2022-11-21 13:44:19,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608447e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:19, skipping insertion in model container [2022-11-21 13:44:19,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:42:00" (2/3) ... [2022-11-21 13:44:19,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@608447e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:19, skipping insertion in model container [2022-11-21 13:44:19,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:19" (3/3) ... [2022-11-21 13:44:19,462 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-21 13:44:19,482 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:44:19,482 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:44:19,529 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:19,536 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=PETRI_NET, 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;@76d6fad0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:19,536 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:44:19,541 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) [2022-11-21 13:44:19,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 13:44:19,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:19,548 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 13:44:19,548 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:19,555 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 13:44:19,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 13:44:19,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012675443] [2022-11-21 13:44:19,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:19,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 13:44:19,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:19,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 13:44:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 13:44:20,026 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 13:44:20,028 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 13:44:20,029 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 13:44:20,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 13:44:20,037 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 13:44:20,041 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 13:44:20,083 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 13:44:20,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:44:20 BoogieIcfgContainer [2022-11-21 13:44:20,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 13:44:20,093 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 13:44:20,093 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 13:44:20,093 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 13:44:20,094 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:19" (3/4) ... [2022-11-21 13:44:20,097 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 13:44:20,097 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 13:44:20,098 INFO L158 Benchmark]: Toolchain (without parser) took 140752.30ms. Allocated memory was 146.8MB in the beginning and 790.6MB in the end (delta: 643.8MB). Free memory was 105.3MB in the beginning and 540.7MB in the end (delta: -435.4MB). Peak memory consumption was 209.2MB. Max. memory is 16.1GB. [2022-11-21 13:44:20,099 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 119.5MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 13:44:20,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 984.26ms. Allocated memory is still 146.8MB. Free memory was 105.3MB in the beginning and 67.1MB in the end (delta: 38.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-21 13:44:20,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 180.70ms. Allocated memory is still 146.8MB. Free memory was 67.1MB in the beginning and 47.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-21 13:44:20,101 INFO L158 Benchmark]: Boogie Preprocessor took 195.86ms. Allocated memory is still 146.8MB. Free memory was 47.6MB in the beginning and 102.3MB in the end (delta: -54.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-11-21 13:44:20,101 INFO L158 Benchmark]: RCFGBuilder took 138742.08ms. Allocated memory was 146.8MB in the beginning and 790.6MB in the end (delta: 643.8MB). Free memory was 102.3MB in the beginning and 581.6MB in the end (delta: -479.4MB). Peak memory consumption was 487.4MB. Max. memory is 16.1GB. [2022-11-21 13:44:20,102 INFO L158 Benchmark]: TraceAbstraction took 637.82ms. Allocated memory is still 790.6MB. Free memory was 580.6MB in the beginning and 541.8MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-21 13:44:20,102 INFO L158 Benchmark]: Witness Printer took 4.47ms. Allocated memory is still 790.6MB. Free memory was 541.8MB in the beginning and 540.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 13:44:20,106 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 119.5MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 984.26ms. Allocated memory is still 146.8MB. Free memory was 105.3MB in the beginning and 67.1MB in the end (delta: 38.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 180.70ms. Allocated memory is still 146.8MB. Free memory was 67.1MB in the beginning and 47.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 195.86ms. Allocated memory is still 146.8MB. Free memory was 47.6MB in the beginning and 102.3MB in the end (delta: -54.7MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * RCFGBuilder took 138742.08ms. Allocated memory was 146.8MB in the beginning and 790.6MB in the end (delta: 643.8MB). Free memory was 102.3MB in the beginning and 581.6MB in the end (delta: -479.4MB). Peak memory consumption was 487.4MB. Max. memory is 16.1GB. * TraceAbstraction took 637.82ms. Allocated memory is still 790.6MB. Free memory was 580.6MB in the beginning and 541.8MB in the end (delta: 38.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 4.47ms. Allocated memory is still 790.6MB. Free memory was 541.8MB in the beginning and 540.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. 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 197, overapproximation of bitwiseAnd at line 192. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_38 mask_SORT_38 = (SORT_38)-1 >> (sizeof(SORT_38) * 8 - 12); [L32] const SORT_38 msb_SORT_38 = (SORT_38)1 << (12 - 1); [L34] const SORT_44 mask_SORT_44 = (SORT_44)-1 >> (sizeof(SORT_44) * 8 - 3); [L35] const SORT_44 msb_SORT_44 = (SORT_44)1 << (3 - 1); [L37] const SORT_71 mask_SORT_71 = (SORT_71)-1 >> (sizeof(SORT_71) * 8 - 2); [L38] const SORT_71 msb_SORT_71 = (SORT_71)1 << (2 - 1); [L40] const SORT_230 mask_SORT_230 = (SORT_230)-1 >> (sizeof(SORT_230) * 8 - 4); [L41] const SORT_230 msb_SORT_230 = (SORT_230)1 << (4 - 1); [L43] const SORT_232 mask_SORT_232 = (SORT_232)-1 >> (sizeof(SORT_232) * 8 - 5); [L44] const SORT_232 msb_SORT_232 = (SORT_232)1 << (5 - 1); [L46] const SORT_234 mask_SORT_234 = (SORT_234)-1 >> (sizeof(SORT_234) * 8 - 6); [L47] const SORT_234 msb_SORT_234 = (SORT_234)1 << (6 - 1); [L49] const SORT_236 mask_SORT_236 = (SORT_236)-1 >> (sizeof(SORT_236) * 8 - 7); [L50] const SORT_236 msb_SORT_236 = (SORT_236)1 << (7 - 1); [L52] const SORT_238 mask_SORT_238 = (SORT_238)-1 >> (sizeof(SORT_238) * 8 - 8); [L53] const SORT_238 msb_SORT_238 = (SORT_238)1 << (8 - 1); [L55] const SORT_240 mask_SORT_240 = (SORT_240)-1 >> (sizeof(SORT_240) * 8 - 9); [L56] const SORT_240 msb_SORT_240 = (SORT_240)1 << (9 - 1); [L58] const SORT_242 mask_SORT_242 = (SORT_242)-1 >> (sizeof(SORT_242) * 8 - 10); [L59] const SORT_242 msb_SORT_242 = (SORT_242)1 << (10 - 1); [L61] const SORT_244 mask_SORT_244 = (SORT_244)-1 >> (sizeof(SORT_244) * 8 - 11); [L62] const SORT_244 msb_SORT_244 = (SORT_244)1 << (11 - 1); [L64] const SORT_247 mask_SORT_247 = (SORT_247)-1 >> (sizeof(SORT_247) * 8 - 13); [L65] const SORT_247 msb_SORT_247 = (SORT_247)1 << (13 - 1); [L67] const SORT_249 mask_SORT_249 = (SORT_249)-1 >> (sizeof(SORT_249) * 8 - 14); [L68] const SORT_249 msb_SORT_249 = (SORT_249)1 << (14 - 1); [L70] const SORT_251 mask_SORT_251 = (SORT_251)-1 >> (sizeof(SORT_251) * 8 - 15); [L71] const SORT_251 msb_SORT_251 = (SORT_251)1 << (15 - 1); [L73] const SORT_460 mask_SORT_460 = (SORT_460)-1 >> (sizeof(SORT_460) * 8 - 17); [L74] const SORT_460 msb_SORT_460 = (SORT_460)1 << (17 - 1); [L76] const SORT_3 var_6 = 0; [L77] const SORT_1 var_11 = 0; [L78] const SORT_1 var_22 = 1; [L79] const SORT_38 var_39 = 0; [L80] const SORT_44 var_45 = 0; [L81] const SORT_44 var_49 = 2; [L82] const SORT_44 var_53 = 1; [L83] const SORT_44 var_58 = 4; [L84] const SORT_44 var_60 = 5; [L85] const SORT_44 var_64 = 3; [L86] const SORT_71 var_73 = 0; [L87] const SORT_3 var_80 = 65535; [L88] const SORT_232 var_461 = 0; [L89] const SORT_236 var_507 = 5; [L90] const SORT_236 var_511 = 4; [L91] const SORT_236 var_515 = 3; [L92] const SORT_236 var_519 = 2; [L93] const SORT_236 var_523 = 1; [L94] const SORT_236 var_527 = 0; [L95] const SORT_38 var_561 = 2; [L97] SORT_1 input_2; [L98] SORT_3 input_4; [L99] SORT_3 input_5; [L100] SORT_3 input_68; [L101] SORT_3 input_69; [L102] SORT_3 input_70; [L103] SORT_3 input_79; [L104] SORT_3 input_88; [L105] SORT_3 input_89; [L106] SORT_3 input_90; [L107] SORT_3 input_93; [L108] SORT_3 input_111; [L109] SORT_3 input_112; [L110] SORT_3 input_113; [L111] SORT_3 input_116; [L112] SORT_3 input_118; [L113] SORT_71 input_132; [L114] SORT_71 input_133; [L115] SORT_71 input_134; [L117] SORT_3 state_7 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L118] SORT_3 state_9 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L119] SORT_3 state_13 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L120] SORT_3 state_15 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] SORT_3 state_26 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L123] SORT_3 state_30 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_3 state_34 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L126] SORT_3 state_36 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L127] SORT_38 state_40 = __VERIFIER_nondet_ushort() & mask_SORT_38; [L128] SORT_38 state_42 = __VERIFIER_nondet_ushort() & mask_SORT_38; [L129] SORT_44 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_44; [L131] SORT_3 init_8_arg_1 = var_6; [L132] state_7 = init_8_arg_1 [L133] SORT_3 init_10_arg_1 = var_6; [L134] state_9 = init_10_arg_1 [L135] SORT_3 init_14_arg_1 = var_6; [L136] state_13 = init_14_arg_1 [L137] SORT_3 init_16_arg_1 = var_6; [L138] state_15 = init_16_arg_1 [L139] SORT_3 init_27_arg_1 = var_6; [L140] state_26 = init_27_arg_1 [L141] SORT_3 init_29_arg_1 = var_6; [L142] state_28 = init_29_arg_1 [L143] SORT_3 init_31_arg_1 = var_6; [L144] state_30 = init_31_arg_1 [L145] SORT_1 init_33_arg_1 = var_11; [L146] state_32 = init_33_arg_1 [L147] SORT_3 init_35_arg_1 = var_6; [L148] state_34 = init_35_arg_1 [L149] SORT_3 init_37_arg_1 = var_6; [L150] state_36 = init_37_arg_1 [L151] SORT_38 init_41_arg_1 = var_39; [L152] state_40 = init_41_arg_1 [L153] SORT_38 init_43_arg_1 = var_39; [L154] state_42 = init_43_arg_1 [L155] SORT_44 init_47_arg_1 = var_45; [L156] state_46 = init_47_arg_1 VAL [init_10_arg_1=0, init_14_arg_1=0, init_16_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_47_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_230=15, mask_SORT_232=31, mask_SORT_234=63, mask_SORT_236=127, mask_SORT_238=255, mask_SORT_240=511, mask_SORT_242=1023, mask_SORT_244=2047, mask_SORT_247=8191, mask_SORT_249=16383, mask_SORT_251=32767, mask_SORT_3=65535, mask_SORT_38=4095, mask_SORT_44=7, mask_SORT_460=4294967295, mask_SORT_71=3, msb_SORT_1=1, msb_SORT_230=8, msb_SORT_232=16, msb_SORT_234=32, msb_SORT_236=64, msb_SORT_238=128, msb_SORT_240=256, msb_SORT_242=512, msb_SORT_244=1024, msb_SORT_247=4096, msb_SORT_249=8192, msb_SORT_251=16384, msb_SORT_3=32768, msb_SORT_38=2048, msb_SORT_44=4, msb_SORT_460=65536, msb_SORT_71=2, state_13=0, state_15=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_40=0, state_42=0, state_46=0, state_7=0, state_9=0, var_11=0, var_22=1, var_39=0, var_45=0, var_461=0, var_49=2, var_507=5, var_511=4, var_515=3, var_519=2, var_523=1, var_527=0, var_53=1, var_561=2, var_58=4, var_6=0, var_60=5, var_64=3, var_73=0, var_80=65535] [L159] input_2 = __VERIFIER_nondet_uchar() [L160] input_4 = __VERIFIER_nondet_ushort() [L161] input_5 = __VERIFIER_nondet_ushort() [L162] input_68 = __VERIFIER_nondet_ushort() [L163] input_69 = __VERIFIER_nondet_ushort() [L164] input_70 = __VERIFIER_nondet_ushort() [L165] input_79 = __VERIFIER_nondet_ushort() [L166] input_88 = __VERIFIER_nondet_ushort() [L167] input_89 = __VERIFIER_nondet_ushort() [L168] input_90 = __VERIFIER_nondet_ushort() [L169] input_93 = __VERIFIER_nondet_ushort() [L170] input_111 = __VERIFIER_nondet_ushort() [L171] input_112 = __VERIFIER_nondet_ushort() [L172] input_113 = __VERIFIER_nondet_ushort() [L173] input_116 = __VERIFIER_nondet_ushort() [L174] input_118 = __VERIFIER_nondet_ushort() [L175] input_132 = __VERIFIER_nondet_uchar() [L176] input_133 = __VERIFIER_nondet_uchar() [L177] input_134 = __VERIFIER_nondet_uchar() [L180] SORT_1 var_17_arg_0 = var_11; [L181] SORT_3 var_17_arg_1 = state_15; [L182] SORT_3 var_17_arg_2 = state_13; [L183] SORT_3 var_17 = var_17_arg_0 ? var_17_arg_1 : var_17_arg_2; [L184] SORT_1 var_12_arg_0 = var_11; [L185] SORT_3 var_12_arg_1 = state_9; [L186] SORT_3 var_12_arg_2 = state_7; [L187] SORT_3 var_12 = var_12_arg_0 ? var_12_arg_1 : var_12_arg_2; [L188] SORT_1 var_18_arg_0 = var_11; [L189] SORT_3 var_18_arg_1 = var_17; [L190] SORT_3 var_18_arg_2 = var_12; [L191] SORT_3 var_18 = var_18_arg_0 ? var_18_arg_1 : var_18_arg_2; [L192] var_18 = var_18 & mask_SORT_3 [L193] SORT_3 var_19_arg_0 = var_18; [L194] SORT_3 var_19_arg_1 = var_6; [L195] SORT_1 var_19 = var_19_arg_0 == var_19_arg_1; [L196] SORT_1 var_23_arg_0 = var_19; [L197] SORT_1 var_23 = ~var_23_arg_0; [L198] SORT_1 var_24_arg_0 = var_22; [L199] SORT_1 var_24_arg_1 = var_23; [L200] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L201] var_24 = var_24 & mask_SORT_1 [L202] SORT_1 bad_25_arg_0 = var_24; [L203] CALL __VERIFIER_assert(!(bad_25_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=11occurred 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, 5 NumberOfCodeBlocks, 5 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 [2022-11-21 13:44:20,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f --- 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 [2022-11-21 13:44:22,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 13:44:22,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 13:44:22,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 13:44:22,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 13:44:22,667 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 13:44:22,669 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 13:44:22,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 13:44:22,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 13:44:22,680 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 13:44:22,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 13:44:22,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 13:44:22,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 13:44:22,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 13:44:22,688 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 13:44:22,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 13:44:22,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 13:44:22,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 13:44:22,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 13:44:22,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 13:44:22,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 13:44:22,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 13:44:22,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 13:44:22,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 13:44:22,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 13:44:22,716 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 13:44:22,716 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 13:44:22,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 13:44:22,718 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 13:44:22,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 13:44:22,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 13:44:22,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 13:44:22,720 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 13:44:22,721 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 13:44:22,722 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 13:44:22,723 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 13:44:22,723 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 13:44:22,724 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 13:44:22,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 13:44:22,725 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 13:44:22,726 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 13:44:22,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 13:44:22,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 13:44:22,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 13:44:22,750 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 13:44:22,750 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 13:44:22,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 13:44:22,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 13:44:22,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 13:44:22,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 13:44:22,752 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 13:44:22,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 13:44:22,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 13:44:22,753 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 13:44:22,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 13:44:22,753 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 13:44:22,754 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 13:44:22,754 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 13:44:22,754 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 13:44:22,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 13:44:22,754 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 13:44:22,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 13:44:22,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 13:44:22,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 13:44:22,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 13:44:22,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:22,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 13:44:22,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 13:44:22,756 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 13:44:22,756 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 13:44:22,757 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 13:44:22,757 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 13:44:22,757 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 13:44:22,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 13:44:22,757 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 13:44:22,758 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_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc22d6d4209dd91d6792979ea560d5b9cdade906028821eba254f4102038ea1f [2022-11-21 13:44:23,182 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 13:44:23,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 13:44:23,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 13:44:23,213 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 13:44:23,213 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 13:44:23,215 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-21 13:44:26,469 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 13:44:26,816 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 13:44:26,817 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-21 13:44:26,833 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data/2740070f5/84fe613fdd264d8a9386c23f6773fb98/FLAG0a62088f1 [2022-11-21 13:44:26,847 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/data/2740070f5/84fe613fdd264d8a9386c23f6773fb98 [2022-11-21 13:44:26,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 13:44:26,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 13:44:26,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:26,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 13:44:26,856 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 13:44:26,857 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:26" (1/1) ... [2022-11-21 13:44:26,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@598daab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:26, skipping insertion in model container [2022-11-21 13:44:26,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:44:26" (1/1) ... [2022-11-21 13:44:26,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 13:44:26,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 13:44:27,153 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_1e987156-5f88-41fa-846b-734e172ab0db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-21 13:44:27,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:27,593 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 13:44:27,604 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_1e987156-5f88-41fa-846b-734e172ab0db/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p2.c[1107,1120] [2022-11-21 13:44:27,756 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 13:44:27,769 INFO L208 MainTranslator]: Completed translation [2022-11-21 13:44:27,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27 WrapperNode [2022-11-21 13:44:27,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 13:44:27,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:27,771 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 13:44:27,771 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 13:44:27,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:27,824 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:27,967 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1779 [2022-11-21 13:44:27,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 13:44:27,969 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 13:44:27,969 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 13:44:27,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 13:44:27,979 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:27,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:27,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:27,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:28,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:28,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:28,042 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:28,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:28,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 13:44:28,064 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 13:44:28,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 13:44:28,065 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 13:44:28,066 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (1/1) ... [2022-11-21 13:44:28,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 13:44:28,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 13:44:28,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 13:44:28,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 13:44:28,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 13:44:28,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 13:44:28,653 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 13:44:28,655 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 13:44:31,877 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 13:44:31,884 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 13:44:31,885 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 13:44:31,887 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:31 BoogieIcfgContainer [2022-11-21 13:44:31,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 13:44:31,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 13:44:31,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 13:44:31,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 13:44:31,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:44:26" (1/3) ... [2022-11-21 13:44:31,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362c0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:31, skipping insertion in model container [2022-11-21 13:44:31,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:44:27" (2/3) ... [2022-11-21 13:44:31,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362c0e85 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:44:31, skipping insertion in model container [2022-11-21 13:44:31,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:44:31" (3/3) ... [2022-11-21 13:44:31,896 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p2.c [2022-11-21 13:44:31,916 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 13:44:31,916 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 13:44:31,968 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 13:44:31,976 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=PETRI_NET, 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;@265eea0a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 13:44:31,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 13:44:31,980 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) [2022-11-21 13:44:31,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 13:44:31,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:31,988 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 13:44:31,989 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:31,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:31,995 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 13:44:32,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:44:32,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442467340] [2022-11-21 13:44:32,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:32,012 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 [2022-11-21 13:44:32,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:44:32,018 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 13:44:32,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 13:44:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:32,479 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-21 13:44:32,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:32,736 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 13:44:32,737 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 13:44:32,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442467340] [2022-11-21 13:44:32,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442467340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 13:44:32,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 13:44:32,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 13:44:32,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868962611] [2022-11-21 13:44:32,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 13:44:32,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 13:44:32,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 13:44:32,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 13:44:32,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 13:44:32,779 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) [2022-11-21 13:44:33,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 13:44:33,185 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 13:44:33,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 13:44:33,188 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 [2022-11-21 13:44:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 13:44:33,198 INFO L225 Difference]: With dead ends: 20 [2022-11-21 13:44:33,198 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 13:44:33,202 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 [2022-11-21 13:44:33,206 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-11-21 13:44:33,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-21 13:44:33,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 13:44:33,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 13:44:33,240 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) [2022-11-21 13:44:33,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 13:44:33,242 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 13:44:33,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 13:44:33,243 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 13:44:33,243 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) [2022-11-21 13:44:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 13:44:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 13:44:33,244 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 13:44:33,244 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 13:44:33,257 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 13:44:33,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 13:44:33,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 13:44:33,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 13:44:33,457 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 13:44:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 13:44:33,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [30449988] [2022-11-21 13:44:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 13:44:33,470 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 [2022-11-21 13:44:33,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 13:44:33,471 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 13:44:33,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e987156-5f88-41fa-846b-734e172ab0db/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 13:44:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 13:44:34,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 1593 conjuncts, 256 conjunts are in the unsatisfiable core [2022-11-21 13:44:34,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 13:44:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 13:44:39,611 INFO L328 TraceCheckSpWp]: Computing backward predicates...