./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/parport.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ntdrivers/parport.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ --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 32bit --witnessprinter.graph.data.programhash 4ac544dc5b01c2e84192d57540176c08b809d66a678248491533d1421aab9cd9 --- 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-dbf71c6-m [2022-10-17 10:50:55,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:50:55,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:50:55,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:50:55,405 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:50:55,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:50:55,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:50:55,411 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:50:55,413 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:50:55,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:50:55,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:50:55,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:50:55,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:50:55,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:50:55,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:50:55,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:50:55,424 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:50:55,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:50:55,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:50:55,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:50:55,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:50:55,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:50:55,440 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:50:55,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:50:55,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:50:55,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:50:55,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:50:55,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:50:55,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:50:55,450 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:50:55,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:50:55,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:50:55,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:50:55,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:50:55,462 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:50:55,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:50:55,463 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:50:55,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:50:55,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:50:55,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:50:55,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:50:55,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:50:55,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:50:55,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:50:55,512 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:50:55,512 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:50:55,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:50:55,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:50:55,515 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:50:55,515 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:50:55,516 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:50:55,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:50:55,517 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:50:55,517 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:50:55,517 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:50:55,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:50:55,518 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:50:55,518 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:50:55,518 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:50:55,518 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:50:55,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:50:55,519 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:50:55,519 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:50:55,519 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:50:55,519 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:50:55,519 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:50:55,520 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:50:55,520 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:50:55,521 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:50:55,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:50:55,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:50:55,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:50:55,522 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:50:55,522 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:50:55,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:50:55,523 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_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ac544dc5b01c2e84192d57540176c08b809d66a678248491533d1421aab9cd9 [2022-10-17 10:50:55,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:50:55,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:50:55,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:50:55,932 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:50:55,933 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:50:55,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ntdrivers/parport.i.cil-2.c [2022-10-17 10:50:55,995 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/data/0480c19e2/a24b76308ee24227b546b391ecf0aa5a/FLAG19a016a34 [2022-10-17 10:50:56,896 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:50:56,897 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/sv-benchmarks/c/ntdrivers/parport.i.cil-2.c [2022-10-17 10:50:56,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/data/0480c19e2/a24b76308ee24227b546b391ecf0aa5a/FLAG19a016a34 [2022-10-17 10:50:57,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/data/0480c19e2/a24b76308ee24227b546b391ecf0aa5a [2022-10-17 10:50:57,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:50:57,367 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:50:57,369 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:50:57,369 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:50:57,373 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:50:57,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:50:57" (1/1) ... [2022-10-17 10:50:57,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30587e51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:57, skipping insertion in model container [2022-10-17 10:50:57,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:50:57" (1/1) ... [2022-10-17 10:50:57,382 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:50:57,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:50:58,442 WARN L230 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_1229a291-a712-4f0b-8fba-24dcbd76971a/sv-benchmarks/c/ntdrivers/parport.i.cil-2.c[86591,86604] [2022-10-17 10:50:59,433 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:50:59,461 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:50:59,550 WARN L230 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_1229a291-a712-4f0b-8fba-24dcbd76971a/sv-benchmarks/c/ntdrivers/parport.i.cil-2.c[86591,86604] [2022-10-17 10:50:59,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:50:59,979 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:50:59,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59 WrapperNode [2022-10-17 10:50:59,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:50:59,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:50:59,982 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:50:59,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:50:59,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,305 INFO L138 Inliner]: procedures = 248, calls = 2334, calls flagged for inlining = 84, calls inlined = 64, statements flattened = 4784 [2022-10-17 10:51:00,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:51:00,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:51:00,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:51:00,307 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:51:00,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,475 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,575 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,618 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:51:00,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:51:00,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:51:00,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:51:00,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (1/1) ... [2022-10-17 10:51:00,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:51:00,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:51:00,724 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:51:00,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure PptDebugDumpResourceRequirementsList [2022-10-17 10:51:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDebugDumpResourceRequirementsList [2022-10-17 10:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure PptAcquireRemoveLock [2022-10-17 10:51:00,784 INFO L138 BoogieDeclarations]: Found implementation of procedure PptAcquireRemoveLock [2022-10-17 10:51:00,784 INFO L130 BoogieDeclarations]: Found specification of procedure WRITE_PORT_UCHAR [2022-10-17 10:51:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure WRITE_PORT_UCHAR [2022-10-17 10:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure PptLegacyZipClockDiskModeByte [2022-10-17 10:51:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLegacyZipClockDiskModeByte [2022-10-17 10:51:00,785 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~PVOID~0~TO~~BOOLEAN~0 [2022-10-17 10:51:00,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~PVOID~0~TO~~BOOLEAN~0 [2022-10-17 10:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 10:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 10:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure PptClearByteMode [2022-10-17 10:51:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure PptClearByteMode [2022-10-17 10:51:00,786 INFO L130 BoogieDeclarations]: Found specification of procedure KeStallExecutionProcessor [2022-10-17 10:51:00,786 INFO L138 BoogieDeclarations]: Found implementation of procedure KeStallExecutionProcessor [2022-10-17 10:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure PptEcrSetMode [2022-10-17 10:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure PptEcrSetMode [2022-10-17 10:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 10:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 10:51:00,787 INFO L130 BoogieDeclarations]: Found specification of procedure PptSynchronizedDecrement [2022-10-17 10:51:00,787 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSynchronizedDecrement [2022-10-17 10:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 10:51:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 10:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2022-10-17 10:51:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2022-10-17 10:51:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpPassThroughPnpIrpAndReleaseRemoveLock [2022-10-17 10:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpPassThroughPnpIrpAndReleaseRemoveLock [2022-10-17 10:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure PptEcrClearMode [2022-10-17 10:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure PptEcrClearMode [2022-10-17 10:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:51:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure PptDumpRemovalRelationsList [2022-10-17 10:51:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDumpRemovalRelationsList [2022-10-17 10:51:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure PptLogError [2022-10-17 10:51:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLogError [2022-10-17 10:51:00,790 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 10:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpUnhandledIrp [2022-10-17 10:51:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpUnhandledIrp [2022-10-17 10:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpFilterExistsNonIrqResourceList [2022-10-17 10:51:00,791 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpFilterExistsNonIrqResourceList [2022-10-17 10:51:00,791 INFO L130 BoogieDeclarations]: Found specification of procedure PptIsNecR98Machine [2022-10-17 10:51:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure PptIsNecR98Machine [2022-10-17 10:51:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure CheckPort [2022-10-17 10:51:00,792 INFO L138 BoogieDeclarations]: Found implementation of procedure CheckPort [2022-10-17 10:51:00,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:51:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 10:51:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure PptLegacyZipSetDiskMode [2022-10-17 10:51:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLegacyZipSetDiskMode [2022-10-17 10:51:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure PptTrySelectLegacyZip [2022-10-17 10:51:00,793 INFO L138 BoogieDeclarations]: Found implementation of procedure PptTrySelectLegacyZip [2022-10-17 10:51:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure PptDeselectDevice [2022-10-17 10:51:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDeselectDevice [2022-10-17 10:51:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2022-10-17 10:51:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2022-10-17 10:51:00,796 INFO L130 BoogieDeclarations]: Found specification of procedure PptDisconnectInterrupt [2022-10-17 10:51:00,796 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDisconnectInterrupt [2022-10-17 10:51:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure RtlQueryRegistryValues [2022-10-17 10:51:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlQueryRegistryValues [2022-10-17 10:51:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpBounceAndCatchPnpIrp [2022-10-17 10:51:00,797 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpBounceAndCatchPnpIrp [2022-10-17 10:51:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 10:51:00,797 INFO L130 BoogieDeclarations]: Found specification of procedure KeQueryTickCount [2022-10-17 10:51:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQueryTickCount [2022-10-17 10:51:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2022-10-17 10:51:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2022-10-17 10:51:00,798 INFO L130 BoogieDeclarations]: Found specification of procedure KeQueryTimeIncrement [2022-10-17 10:51:00,798 INFO L138 BoogieDeclarations]: Found implementation of procedure KeQueryTimeIncrement [2022-10-17 10:51:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure PptSynchronizedIncrement [2022-10-17 10:51:00,799 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSynchronizedIncrement [2022-10-17 10:51:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 10:51:00,799 INFO L130 BoogieDeclarations]: Found specification of procedure PptSynchCompletionRoutine [2022-10-17 10:51:00,800 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSynchCompletionRoutine [2022-10-17 10:51:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:51:00,800 INFO L130 BoogieDeclarations]: Found specification of procedure IoReportResourceUsage [2022-10-17 10:51:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure IoReportResourceUsage [2022-10-17 10:51:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure PptInitiate1284_3 [2022-10-17 10:51:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure PptInitiate1284_3 [2022-10-17 10:51:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure PptPnpFilterRemoveIrqResourceLists [2022-10-17 10:51:00,801 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPnpFilterRemoveIrqResourceLists [2022-10-17 10:51:00,801 INFO L130 BoogieDeclarations]: Found specification of procedure PptDispatchCleanup [2022-10-17 10:51:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDispatchCleanup [2022-10-17 10:51:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2022-10-17 10:51:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2022-10-17 10:51:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 10:51:00,802 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 10:51:00,802 INFO L130 BoogieDeclarations]: Found specification of procedure RtlCompareUnicodeString [2022-10-17 10:51:00,803 INFO L138 BoogieDeclarations]: Found implementation of procedure RtlCompareUnicodeString [2022-10-17 10:51:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure READ_PORT_UCHAR [2022-10-17 10:51:00,803 INFO L138 BoogieDeclarations]: Found implementation of procedure READ_PORT_UCHAR [2022-10-17 10:51:00,803 INFO L130 BoogieDeclarations]: Found specification of procedure PptFreePort [2022-10-17 10:51:00,804 INFO L138 BoogieDeclarations]: Found implementation of procedure PptFreePort [2022-10-17 10:51:00,804 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetectEcpPort [2022-10-17 10:51:00,804 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetectEcpPort [2022-10-17 10:51:00,804 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2022-10-17 10:51:00,805 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2022-10-17 10:51:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure IoWMIRegistrationControl [2022-10-17 10:51:00,806 INFO L138 BoogieDeclarations]: Found implementation of procedure IoWMIRegistrationControl [2022-10-17 10:51:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:51:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure PptDeselectLegacyZip [2022-10-17 10:51:00,807 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDeselectLegacyZip [2022-10-17 10:51:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure PptSetCancelRoutine [2022-10-17 10:51:00,807 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSetCancelRoutine [2022-10-17 10:51:00,807 INFO L130 BoogieDeclarations]: Found specification of procedure PptTrySelectDevice [2022-10-17 10:51:00,808 INFO L138 BoogieDeclarations]: Found implementation of procedure PptTrySelectDevice [2022-10-17 10:51:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:51:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetectBytePort [2022-10-17 10:51:00,808 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetectBytePort [2022-10-17 10:51:00,808 INFO L130 BoogieDeclarations]: Found specification of procedure PptReleaseRemoveLock [2022-10-17 10:51:00,809 INFO L138 BoogieDeclarations]: Found implementation of procedure PptReleaseRemoveLock [2022-10-17 10:51:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:51:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure PptPowerComplete [2022-10-17 10:51:00,809 INFO L138 BoogieDeclarations]: Found implementation of procedure PptPowerComplete [2022-10-17 10:51:00,809 INFO L130 BoogieDeclarations]: Found specification of procedure PptFailRequest [2022-10-17 10:51:00,810 INFO L138 BoogieDeclarations]: Found implementation of procedure PptFailRequest [2022-10-17 10:51:00,810 INFO L130 BoogieDeclarations]: Found specification of procedure IoAcquireRemoveLockEx [2022-10-17 10:51:00,811 INFO L138 BoogieDeclarations]: Found implementation of procedure IoAcquireRemoveLockEx [2022-10-17 10:51:00,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 10:51:00,814 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2022-10-17 10:51:00,814 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2022-10-17 10:51:00,814 INFO L130 BoogieDeclarations]: Found specification of procedure PptSetByteMode [2022-10-17 10:51:00,815 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSetByteMode [2022-10-17 10:51:00,817 INFO L130 BoogieDeclarations]: Found specification of procedure PptLegacyZipClockPrtModeByte [2022-10-17 10:51:00,817 INFO L138 BoogieDeclarations]: Found implementation of procedure PptLegacyZipClockPrtModeByte [2022-10-17 10:51:00,817 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetectEppPort [2022-10-17 10:51:00,817 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetectEppPort [2022-10-17 10:51:00,824 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetermineFifoWidth [2022-10-17 10:51:00,824 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetermineFifoWidth [2022-10-17 10:51:00,825 INFO L130 BoogieDeclarations]: Found specification of procedure PptSend1284_3Command [2022-10-17 10:51:00,825 INFO L138 BoogieDeclarations]: Found implementation of procedure PptSend1284_3Command [2022-10-17 10:51:00,825 INFO L130 BoogieDeclarations]: Found specification of procedure PptDetermineFifoDepth [2022-10-17 10:51:00,825 INFO L138 BoogieDeclarations]: Found implementation of procedure PptDetermineFifoDepth [2022-10-17 10:51:00,825 INFO L130 BoogieDeclarations]: Found specification of procedure PptCompleteRequest [2022-10-17 10:51:00,825 INFO L138 BoogieDeclarations]: Found implementation of procedure PptCompleteRequest [2022-10-17 10:51:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure PoCallDriver [2022-10-17 10:51:00,826 INFO L138 BoogieDeclarations]: Found implementation of procedure PoCallDriver [2022-10-17 10:51:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedIncrement [2022-10-17 10:51:00,826 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedIncrement [2022-10-17 10:51:00,826 INFO L130 BoogieDeclarations]: Found specification of procedure PoRequestPowerIrp [2022-10-17 10:51:00,826 INFO L138 BoogieDeclarations]: Found implementation of procedure PoRequestPowerIrp [2022-10-17 10:51:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure KeSynchronizeExecution [2022-10-17 10:51:00,827 INFO L138 BoogieDeclarations]: Found implementation of procedure KeSynchronizeExecution [2022-10-17 10:51:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure PptAcquireRemoveLockOrFailIrp [2022-10-17 10:51:00,827 INFO L138 BoogieDeclarations]: Found implementation of procedure PptAcquireRemoveLockOrFailIrp [2022-10-17 10:51:00,827 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~PVOID~0~X~~UCHAR~0~TO~~NTSTATUS~0 [2022-10-17 10:51:00,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~PVOID~0~X~~UCHAR~0~TO~~NTSTATUS~0 [2022-10-17 10:51:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:51:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure PoSetPowerState [2022-10-17 10:51:00,828 INFO L138 BoogieDeclarations]: Found implementation of procedure PoSetPowerState [2022-10-17 10:51:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure Ppt1284_3AssignAddress [2022-10-17 10:51:00,828 INFO L138 BoogieDeclarations]: Found implementation of procedure Ppt1284_3AssignAddress [2022-10-17 10:51:00,828 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2022-10-17 10:51:00,828 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2022-10-17 10:51:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2022-10-17 10:51:00,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2022-10-17 10:51:00,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:51:00,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:51:01,632 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:51:01,636 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:51:01,717 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:01,800 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume !false; [2022-10-17 10:51:01,800 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##25: assume false; [2022-10-17 10:51:01,807 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:01,876 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##6: assume !false; [2022-10-17 10:51:01,877 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##5: assume false; [2022-10-17 10:51:02,418 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:02,484 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume !false; [2022-10-17 10:51:02,485 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume false; [2022-10-17 10:51:02,946 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:02,952 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-17 10:51:02,952 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-17 10:51:03,087 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,118 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-10-17 10:51:03,118 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-10-17 10:51:03,241 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,248 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2022-10-17 10:51:03,249 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2022-10-17 10:51:03,251 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,274 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2022-10-17 10:51:03,274 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2022-10-17 10:51:03,275 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,321 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##21: assume false; [2022-10-17 10:51:03,321 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##22: assume !false; [2022-10-17 10:51:03,685 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,687 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,689 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,690 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,690 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,719 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,728 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,730 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,737 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,739 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,740 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:03,742 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-10-17 10:51:13,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##386: assume false; [2022-10-17 10:51:13,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##387: assume !false; [2022-10-17 10:51:13,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##425: assume !false; [2022-10-17 10:51:13,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##424: assume false; [2022-10-17 10:51:13,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##489: assume !false; [2022-10-17 10:51:13,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##488: assume false; [2022-10-17 10:51:13,823 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##533: assume !false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##532: assume false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##543: assume !false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##542: assume false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##99: assume false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##75: assume !false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##74: assume false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##31: assume !false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume false; [2022-10-17 10:51:13,824 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##131: assume !false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##130: assume false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume !false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##136: assume false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##162: assume false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume !false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##100: assume !false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##588: assume !false; [2022-10-17 10:51:13,825 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##587: assume false; [2022-10-17 10:51:14,001 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:51:14,035 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:51:14,036 INFO L300 CfgBuilder]: Removed 33 assume(true) statements. [2022-10-17 10:51:14,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:51:14 BoogieIcfgContainer [2022-10-17 10:51:14,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:51:14,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:51:14,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:51:14,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:51:14,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:50:57" (1/3) ... [2022-10-17 10:51:14,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8515239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:51:14, skipping insertion in model container [2022-10-17 10:51:14,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:50:59" (2/3) ... [2022-10-17 10:51:14,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8515239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:51:14, skipping insertion in model container [2022-10-17 10:51:14,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:51:14" (3/3) ... [2022-10-17 10:51:14,053 INFO L112 eAbstractionObserver]: Analyzing ICFG parport.i.cil-2.c [2022-10-17 10:51:14,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:51:14,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:51:14,193 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:51:14,200 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;@4ef78ca5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:51:14,201 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:51:14,212 INFO L276 IsEmpty]: Start isEmpty. Operand has 1779 states, 1254 states have (on average 1.4832535885167464) internal successors, (1860), 1303 states have internal predecessors, (1860), 453 states have call successors, (453), 70 states have call predecessors, (453), 70 states have return successors, (453), 440 states have call predecessors, (453), 453 states have call successors, (453) [2022-10-17 10:51:14,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 10:51:14,220 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:51:14,220 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:51:14,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:51:14,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:51:14,226 INFO L85 PathProgramCache]: Analyzing trace with hash -773300714, now seen corresponding path program 1 times [2022-10-17 10:51:14,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:51:14,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399379562] [2022-10-17 10:51:14,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:14,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:51:14,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:14,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:51:14,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:51:14,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399379562] [2022-10-17 10:51:14,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399379562] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:51:14,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:51:14,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:51:14,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335992030] [2022-10-17 10:51:14,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:51:14,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:51:14,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:51:15,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:51:15,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:51:15,035 INFO L87 Difference]: Start difference. First operand has 1779 states, 1254 states have (on average 1.4832535885167464) internal successors, (1860), 1303 states have internal predecessors, (1860), 453 states have call successors, (453), 70 states have call predecessors, (453), 70 states have return successors, (453), 440 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:15,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:51:15,299 INFO L93 Difference]: Finished difference Result 3554 states and 5647 transitions. [2022-10-17 10:51:15,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:51:15,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-17 10:51:15,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:51:15,337 INFO L225 Difference]: With dead ends: 3554 [2022-10-17 10:51:15,337 INFO L226 Difference]: Without dead ends: 1774 [2022-10-17 10:51:15,352 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:51:15,356 INFO L413 NwaCegarLoop]: 2647 mSDtfsCounter, 1 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5292 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:51:15,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5292 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:51:15,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1774 states. [2022-10-17 10:51:15,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1774 to 1773. [2022-10-17 10:51:15,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1250 states have (on average 1.4) internal successors, (1750), 1297 states have internal predecessors, (1750), 453 states have call successors, (453), 70 states have call predecessors, (453), 69 states have return successors, (434), 426 states have call predecessors, (434), 434 states have call successors, (434) [2022-10-17 10:51:15,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2637 transitions. [2022-10-17 10:51:15,601 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2637 transitions. Word has length 15 [2022-10-17 10:51:15,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:51:15,602 INFO L495 AbstractCegarLoop]: Abstraction has 1773 states and 2637 transitions. [2022-10-17 10:51:15,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:15,603 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2637 transitions. [2022-10-17 10:51:15,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 10:51:15,604 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:51:15,604 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:51:15,604 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:51:15,604 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:51:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:51:15,605 INFO L85 PathProgramCache]: Analyzing trace with hash 971741108, now seen corresponding path program 1 times [2022-10-17 10:51:15,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:51:15,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038696542] [2022-10-17 10:51:15,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:51:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:16,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:51:16,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:51:16,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038696542] [2022-10-17 10:51:16,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038696542] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:51:16,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018347897] [2022-10-17 10:51:16,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:16,074 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:51:16,075 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:51:16,080 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:51:16,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:51:16,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:16,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-17 10:51:16,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:51:16,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:51:16,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:51:16,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018347897] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:51:16,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:51:16,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-17 10:51:16,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374718441] [2022-10-17 10:51:16,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:51:16,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:51:16,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:51:16,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:51:16,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:51:16,853 INFO L87 Difference]: Start difference. First operand 1773 states and 2637 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:16,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:51:16,979 INFO L93 Difference]: Finished difference Result 1843 states and 2725 transitions. [2022-10-17 10:51:16,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:51:16,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-17 10:51:16,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:51:16,995 INFO L225 Difference]: With dead ends: 1843 [2022-10-17 10:51:16,995 INFO L226 Difference]: Without dead ends: 1824 [2022-10-17 10:51:16,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:51:16,999 INFO L413 NwaCegarLoop]: 2634 mSDtfsCounter, 2614 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2614 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:51:17,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2614 Valid, 2698 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:51:17,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1824 states. [2022-10-17 10:51:17,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1824 to 1815. [2022-10-17 10:51:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1284 states have (on average 1.397196261682243) internal successors, (1794), 1333 states have internal predecessors, (1794), 457 states have call successors, (457), 74 states have call predecessors, (457), 73 states have return successors, (438), 430 states have call predecessors, (438), 438 states have call successors, (438) [2022-10-17 10:51:17,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2689 transitions. [2022-10-17 10:51:17,111 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2689 transitions. Word has length 17 [2022-10-17 10:51:17,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:51:17,112 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2689 transitions. [2022-10-17 10:51:17,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:17,112 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2689 transitions. [2022-10-17 10:51:17,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-17 10:51:17,113 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:51:17,113 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:51:17,145 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:51:17,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:51:17,331 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:51:17,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:51:17,332 INFO L85 PathProgramCache]: Analyzing trace with hash 957396199, now seen corresponding path program 1 times [2022-10-17 10:51:17,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:51:17,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109529932] [2022-10-17 10:51:17,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:17,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:51:17,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:17,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:51:17,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:51:17,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109529932] [2022-10-17 10:51:17,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109529932] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:51:17,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057461040] [2022-10-17 10:51:17,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:17,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:51:17,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:51:17,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:51:17,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:51:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:18,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 891 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:51:18,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:51:18,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 10:51:18,276 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:51:18,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057461040] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:51:18,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:51:18,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-10-17 10:51:18,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578881360] [2022-10-17 10:51:18,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:51:18,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:51:18,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:51:18,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:51:18,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:51:18,279 INFO L87 Difference]: Start difference. First operand 1815 states and 2689 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:18,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:51:18,507 INFO L93 Difference]: Finished difference Result 1831 states and 2708 transitions. [2022-10-17 10:51:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:51:18,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-17 10:51:18,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:51:18,524 INFO L225 Difference]: With dead ends: 1831 [2022-10-17 10:51:18,525 INFO L226 Difference]: Without dead ends: 1815 [2022-10-17 10:51:18,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:51:18,530 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 0 mSDsluCounter, 2579 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5215 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:51:18,531 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5215 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:51:18,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1815 states. [2022-10-17 10:51:18,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1815 to 1815. [2022-10-17 10:51:18,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1815 states, 1284 states have (on average 1.396417445482866) internal successors, (1793), 1333 states have internal predecessors, (1793), 457 states have call successors, (457), 74 states have call predecessors, (457), 73 states have return successors, (438), 430 states have call predecessors, (438), 438 states have call successors, (438) [2022-10-17 10:51:18,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1815 states to 1815 states and 2688 transitions. [2022-10-17 10:51:18,640 INFO L78 Accepts]: Start accepts. Automaton has 1815 states and 2688 transitions. Word has length 17 [2022-10-17 10:51:18,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:51:18,641 INFO L495 AbstractCegarLoop]: Abstraction has 1815 states and 2688 transitions. [2022-10-17 10:51:18,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:18,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1815 states and 2688 transitions. [2022-10-17 10:51:18,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 10:51:18,643 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:51:18,643 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:51:18,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:51:18,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:51:18,871 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:51:18,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:51:18,871 INFO L85 PathProgramCache]: Analyzing trace with hash 805678958, now seen corresponding path program 1 times [2022-10-17 10:51:18,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:51:18,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893293560] [2022-10-17 10:51:18,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:18,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:51:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:19,164 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:51:19,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:51:19,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893293560] [2022-10-17 10:51:19,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893293560] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:51:19,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901163533] [2022-10-17 10:51:19,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:19,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:51:19,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:51:19,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:51:19,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:51:19,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:19,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 1027 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-17 10:51:19,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:51:19,885 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:51:19,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:51:19,920 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:51:19,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901163533] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:51:19,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:51:19,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-17 10:51:19,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277943910] [2022-10-17 10:51:19,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:51:19,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:51:19,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:51:19,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:51:19,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:51:19,924 INFO L87 Difference]: Start difference. First operand 1815 states and 2688 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:20,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:51:20,171 INFO L93 Difference]: Finished difference Result 3631 states and 5379 transitions. [2022-10-17 10:51:20,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-17 10:51:20,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-10-17 10:51:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:51:20,188 INFO L225 Difference]: With dead ends: 3631 [2022-10-17 10:51:20,189 INFO L226 Difference]: Without dead ends: 1821 [2022-10-17 10:51:20,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:51:20,199 INFO L413 NwaCegarLoop]: 2633 mSDtfsCounter, 4 mSDsluCounter, 5262 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7895 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:51:20,201 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7895 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:51:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2022-10-17 10:51:20,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1821. [2022-10-17 10:51:20,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1821 states, 1290 states have (on average 1.3945736434108527) internal successors, (1799), 1339 states have internal predecessors, (1799), 457 states have call successors, (457), 74 states have call predecessors, (457), 73 states have return successors, (438), 430 states have call predecessors, (438), 438 states have call successors, (438) [2022-10-17 10:51:20,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1821 states to 1821 states and 2694 transitions. [2022-10-17 10:51:20,315 INFO L78 Accepts]: Start accepts. Automaton has 1821 states and 2694 transitions. Word has length 21 [2022-10-17 10:51:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:51:20,319 INFO L495 AbstractCegarLoop]: Abstraction has 1821 states and 2694 transitions. [2022-10-17 10:51:20,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:20,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1821 states and 2694 transitions. [2022-10-17 10:51:20,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 10:51:20,326 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:51:20,326 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:51:20,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:51:20,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1229a291-a712-4f0b-8fba-24dcbd76971a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:51:20,551 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:51:20,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:51:20,551 INFO L85 PathProgramCache]: Analyzing trace with hash -130039224, now seen corresponding path program 2 times [2022-10-17 10:51:20,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:51:20,552 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579127208] [2022-10-17 10:51:20,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:20,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:51:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:20,898 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 10:51:20,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:51:20,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579127208] [2022-10-17 10:51:20,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579127208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:51:20,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:51:20,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:51:20,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356680768] [2022-10-17 10:51:20,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:51:20,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:51:20,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:51:20,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:51:20,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:51:20,900 INFO L87 Difference]: Start difference. First operand 1821 states and 2694 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:21,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:51:21,408 INFO L93 Difference]: Finished difference Result 4647 states and 6936 transitions. [2022-10-17 10:51:21,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:51:21,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-17 10:51:21,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:51:21,434 INFO L225 Difference]: With dead ends: 4647 [2022-10-17 10:51:21,434 INFO L226 Difference]: Without dead ends: 3432 [2022-10-17 10:51:21,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:51:21,442 INFO L413 NwaCegarLoop]: 4649 mSDtfsCounter, 2520 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 7025 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-17 10:51:21,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 7025 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-17 10:51:21,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2022-10-17 10:51:21,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3401. [2022-10-17 10:51:21,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3401 states, 2410 states have (on average 1.3908713692946058) internal successors, (3352), 2478 states have internal predecessors, (3352), 851 states have call successors, (851), 142 states have call predecessors, (851), 139 states have return successors, (869), 818 states have call predecessors, (869), 835 states have call successors, (869) [2022-10-17 10:51:21,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3401 states to 3401 states and 5072 transitions. [2022-10-17 10:51:21,661 INFO L78 Accepts]: Start accepts. Automaton has 3401 states and 5072 transitions. Word has length 27 [2022-10-17 10:51:21,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:51:21,662 INFO L495 AbstractCegarLoop]: Abstraction has 3401 states and 5072 transitions. [2022-10-17 10:51:21,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:51:21,662 INFO L276 IsEmpty]: Start isEmpty. Operand 3401 states and 5072 transitions. [2022-10-17 10:51:21,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-17 10:51:21,664 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:51:21,665 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:51:21,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:51:21,665 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:51:21,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:51:21,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1667935007, now seen corresponding path program 1 times [2022-10-17 10:51:21,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:51:21,666 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498604201] [2022-10-17 10:51:21,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:51:21,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:51:21,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:21,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-17 10:51:21,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:51:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-17 10:51:21,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:51:21,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498604201] [2022-10-17 10:51:21,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498604201] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:51:21,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:51:21,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:51:21,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514244603] [2022-10-17 10:51:21,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:51:21,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:51:21,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:51:21,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:51:21,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:51:21,932 INFO L87 Difference]: Start difference. First operand 3401 states and 5072 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-17 10:51:27,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:51:27,182 INFO L93 Difference]: Finished difference Result 4210 states and 6250 transitions. [2022-10-17 10:51:27,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:51:27,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-10-17 10:51:27,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:51:27,219 INFO L225 Difference]: With dead ends: 4210 [2022-10-17 10:51:27,219 INFO L226 Difference]: Without dead ends: 4205 [2022-10-17 10:51:27,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:51:27,224 INFO L413 NwaCegarLoop]: 2491 mSDtfsCounter, 2464 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2354 mSolverCounterSat, 1456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2788 SdHoareTripleChecker+Valid, 4462 SdHoareTripleChecker+Invalid, 3810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1456 IncrementalHoareTripleChecker+Valid, 2354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-10-17 10:51:27,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2788 Valid, 4462 Invalid, 3810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1456 Valid, 2354 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2022-10-17 10:51:27,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4205 states.