./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 --- 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-8393723 [2022-11-19 08:36:09,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:36:09,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:36:09,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:36:09,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:36:09,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:36:09,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:36:09,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:36:09,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:36:09,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:36:09,167 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:36:09,169 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:36:09,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:36:09,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:36:09,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:36:09,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:36:09,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:36:09,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:36:09,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:36:09,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:36:09,195 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:36:09,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:36:09,202 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:36:09,203 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:36:09,207 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:36:09,214 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:36:09,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:36:09,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:36:09,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:36:09,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:36:09,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:36:09,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:36:09,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:36:09,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:36:09,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:36:09,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:36:09,225 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:36:09,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:36:09,226 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:36:09,227 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:36:09,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:36:09,229 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 08:36:09,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:36:09,266 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:36:09,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:36:09,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:36:09,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:36:09,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:36:09,268 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:36:09,268 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:36:09,268 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:36:09,269 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:36:09,270 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:36:09,270 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:36:09,270 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:36:09,270 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:36:09,271 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:36:09,271 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:36:09,271 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:36:09,271 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:36:09,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:36:09,272 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:36:09,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:36:09,273 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:36:09,273 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:36:09,275 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:36:09,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:36:09,275 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:36:09,275 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:36:09,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:36:09,276 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:36:09,276 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:09,276 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:36:09,277 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:36:09,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:36:09,277 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:36:09,278 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:36:09,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:36:09,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:36:09,278 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:36:09,278 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_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24e26672720ca570553d18d605e2ce47cd111ea61f1f4153430b6ee115172355 [2022-11-19 08:36:09,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:36:09,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:36:09,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:36:09,647 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:36:09,648 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:36:09,649 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-19 08:36:09,738 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/data/69fd05485/9f19d8b258ff4615995ecfb205687ca4/FLAG902c7c9a3 [2022-11-19 08:36:11,118 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:36:11,119 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-19 08:36:11,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/data/69fd05485/9f19d8b258ff4615995ecfb205687ca4/FLAG902c7c9a3 [2022-11-19 08:36:11,739 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/data/69fd05485/9f19d8b258ff4615995ecfb205687ca4 [2022-11-19 08:36:11,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:36:11,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:36:11,751 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:11,751 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:36:11,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:36:11,759 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:11" (1/1) ... [2022-11-19 08:36:11,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e757e54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:11, skipping insertion in model container [2022-11-19 08:36:11,761 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:36:11" (1/1) ... [2022-11-19 08:36:11,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:36:11,992 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:36:17,155 WARN L234 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_b9987093-7ca3-43d5-866f-fa5989bafd69/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2022-11-19 08:36:17,160 WARN L234 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_b9987093-7ca3-43d5-866f-fa5989bafd69/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2022-11-19 08:36:17,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:17,330 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:36:18,327 WARN L234 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_b9987093-7ca3-43d5-866f-fa5989bafd69/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588527,588540] [2022-11-19 08:36:18,328 WARN L234 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_b9987093-7ca3-43d5-866f-fa5989bafd69/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i[588672,588685] [2022-11-19 08:36:18,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:36:18,631 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:36:18,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18 WrapperNode [2022-11-19 08:36:18,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:36:18,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:18,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:36:18,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:36:18,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:18,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,050 INFO L138 Inliner]: procedures = 538, calls = 4352, calls flagged for inlining = 263, calls inlined = 250, statements flattened = 8614 [2022-11-19 08:36:19,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:36:19,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:36:19,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:36:19,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:36:19,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,216 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,589 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:36:19,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:36:19,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:36:19,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:36:19,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (1/1) ... [2022-11-19 08:36:19,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:36:19,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:36:19,747 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:36:19,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:36:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure video_open [2022-11-19 08:36:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure video_open [2022-11-19 08:36:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-19 08:36:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-19 08:36:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-19 08:36:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-19 08:36:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_unregister_video [2022-11-19 08:36:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_unregister_video [2022-11-19 08:36:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_fmt_vid_cap [2022-11-19 08:36:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_fmt_vid_cap [2022-11-19 08:36:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 08:36:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 08:36:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_input [2022-11-19 08:36:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_input [2022-11-19 08:36:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-19 08:36:19,812 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-19 08:36:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_fmt_vid_cap [2022-11-19 08:36:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_fmt_vid_cap [2022-11-19 08:36:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-19 08:36:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-19 08:36:19,813 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvnorm [2022-11-19 08:36:19,813 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvnorm [2022-11-19 08:36:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_tvaudio [2022-11-19 08:36:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_tvaudio [2022-11-19 08:36:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_vid_ctrl [2022-11-19 08:36:19,814 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_vid_ctrl [2022-11-19 08:36:19,814 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2022-11-19 08:36:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2022-11-19 08:36:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-19 08:36:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_slock_of_cx8800_dev [2022-11-19 08:36:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-19 08:36:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-19 08:36:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_dma [2022-11-19 08:36:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_dma [2022-11-19 08:36:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_shutdown [2022-11-19 08:36:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_shutdown [2022-11-19 08:36:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 08:36:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-11-19 08:36:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_fmt_vid_cap [2022-11-19 08:36:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_fmt_vid_cap [2022-11-19 08:36:19,818 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_newstation [2022-11-19 08:36:19,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_newstation [2022-11-19 08:36:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_std [2022-11-19 08:36:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_std [2022-11-19 08:36:19,819 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_vdev_init [2022-11-19 08:36:19,819 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_vdev_init [2022-11-19 08:36:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure video_mmap [2022-11-19 08:36:19,821 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mmap [2022-11-19 08:36:19,822 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-19 08:36:19,822 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-19 08:36:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 08:36:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-19 08:36:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 08:36:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 08:36:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2022-11-19 08:36:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2022-11-19 08:36:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_new_std [2022-11-19 08:36:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_new_std [2022-11-19 08:36:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-19 08:36:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-19 08:36:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_poll [2022-11-19 08:36:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_poll [2022-11-19 08:36:19,826 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2022-11-19 08:36:19,826 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2022-11-19 08:36:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querybuf [2022-11-19 08:36:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querybuf [2022-11-19 08:36:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2022-11-19 08:36:19,827 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2022-11-19 08:36:19,827 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2022-11-19 08:36:19,828 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2022-11-19 08:36:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-19 08:36:19,829 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-19 08:36:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:36:19,829 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_stereo [2022-11-19 08:36:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_stereo [2022-11-19 08:36:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_vbi_fmt [2022-11-19 08:36:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_vbi_fmt [2022-11-19 08:36:19,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_102 [2022-11-19 08:36:19,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_102 [2022-11-19 08:36:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 08:36:19,831 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 08:36:19,831 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_audio_thread [2022-11-19 08:36:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2022-11-19 08:36:19,832 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2022-11-19 08:36:19,832 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-19 08:36:19,833 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-19 08:36:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 08:36:19,834 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-19 08:36:19,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2022-11-19 08:36:19,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-19 08:36:19,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-19 08:36:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_restart_vbi_queue [2022-11-19 08:36:19,836 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_restart_vbi_queue [2022-11-19 08:36:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:36:19,836 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_finidev [2022-11-19 08:36:19,836 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_finidev [2022-11-19 08:36:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-19 08:36:19,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-19 08:36:19,837 INFO L130 BoogieDeclarations]: Found specification of procedure list_move_tail [2022-11-19 08:36:19,837 INFO L138 BoogieDeclarations]: Found implementation of procedure list_move_tail [2022-11-19 08:36:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_querycap [2022-11-19 08:36:19,838 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_querycap [2022-11-19 08:36:19,838 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-19 08:36:19,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-19 08:36:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_set_freq [2022-11-19 08:36:19,839 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_set_freq [2022-11-19 08:36:19,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-19 08:36:19,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-19 08:36:19,840 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_s_aud_ctrl [2022-11-19 08:36:19,840 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_s_aud_ctrl [2022-11-19 08:36:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure video_read [2022-11-19 08:36:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure video_read [2022-11-19 08:36:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 08:36:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 08:36:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_video_mux [2022-11-19 08:36:19,841 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_video_mux [2022-11-19 08:36:19,841 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-19 08:36:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-19 08:36:19,842 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2022-11-19 08:36:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2022-11-19 08:36:19,842 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-19 08:36:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-19 08:36:19,842 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2022-11-19 08:36:19,842 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2022-11-19 08:36:19,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:36:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-19 08:36:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-19 08:36:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-19 08:36:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-19 08:36:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-19 08:36:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-19 08:36:19,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-19 08:36:19,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-19 08:36:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_sg_init [2022-11-19 08:36:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_sg_init [2022-11-19 08:36:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:36:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 08:36:19,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 08:36:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:36:19,844 INFO L130 BoogieDeclarations]: Found specification of procedure video_release [2022-11-19 08:36:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure video_release [2022-11-19 08:36:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:36:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 08:36:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:36:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 08:36:19,845 INFO L130 BoogieDeclarations]: Found specification of procedure restart_video_queue [2022-11-19 08:36:19,845 INFO L138 BoogieDeclarations]: Found implementation of procedure restart_video_queue [2022-11-19 08:36:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:36:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-19 08:36:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-19 08:36:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-19 08:36:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-19 08:36:19,846 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-19 08:36:19,846 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_wakeup [2022-11-19 08:36:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_wakeup [2022-11-19 08:36:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-19 08:36:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-19 08:36:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_s_ctrl [2022-11-19 08:36:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_s_ctrl [2022-11-19 08:36:19,847 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-19 08:36:19,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-19 08:36:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2022-11-19 08:36:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2022-11-19 08:36:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_enum_input [2022-11-19 08:36:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_enum_input [2022-11-19 08:36:19,848 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_dump [2022-11-19 08:36:19,848 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_dump [2022-11-19 08:36:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure video_set_drvdata [2022-11-19 08:36:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure video_set_drvdata [2022-11-19 08:36:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_tuner [2022-11-19 08:36:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_tuner [2022-11-19 08:36:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure res_check [2022-11-19 08:36:19,849 INFO L138 BoogieDeclarations]: Found implementation of procedure res_check [2022-11-19 08:36:19,849 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2022-11-19 08:36:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2022-11-19 08:36:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_buffer [2022-11-19 08:36:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_buffer [2022-11-19 08:36:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-19 08:36:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-19 08:36:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-11-19 08:36:19,850 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-11-19 08:36:19,850 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-19 08:36:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-19 08:36:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:36:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:36:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_risc_stopper [2022-11-19 08:36:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_risc_stopper [2022-11-19 08:36:19,851 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-11-19 08:36:19,851 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-11-19 08:36:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-11-19 08:36:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-11-19 08:36:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 08:36:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 08:36:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_std [2022-11-19 08:36:19,852 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_std [2022-11-19 08:36:19,852 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-19 08:36:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-19 08:36:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_sram_channel_setup [2022-11-19 08:36:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_sram_channel_setup [2022-11-19 08:36:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_free_buffer [2022-11-19 08:36:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_free_buffer [2022-11-19 08:36:19,853 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2022-11-19 08:36:19,853 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2022-11-19 08:36:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-19 08:36:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-19 08:36:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_enum_input [2022-11-19 08:36:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_enum_input [2022-11-19 08:36:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 08:36:19,854 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 08:36:19,854 INFO L130 BoogieDeclarations]: Found specification of procedure res_get [2022-11-19 08:36:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure res_get [2022-11-19 08:36:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2022-11-19 08:36:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2022-11-19 08:36:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_resume [2022-11-19 08:36:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_resume [2022-11-19 08:36:19,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-19 08:36:19,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_cx8800_pci_driver_exit_15_2 [2022-11-19 08:36:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2022-11-19 08:36:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2022-11-19 08:36:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-11-19 08:36:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-11-19 08:36:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2022-11-19 08:36:19,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2022-11-19 08:36:19,856 INFO L130 BoogieDeclarations]: Found specification of procedure video_poll [2022-11-19 08:36:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure video_poll [2022-11-19 08:36:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:36:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 08:36:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 08:36:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:36:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_core_put [2022-11-19 08:36:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_core_put [2022-11-19 08:36:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_find [2022-11-19 08:36:19,858 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_find [2022-11-19 08:36:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_100 [2022-11-19 08:36:19,858 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_100 [2022-11-19 08:36:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_release [2022-11-19 08:36:19,858 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_release [2022-11-19 08:36:19,858 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_dma [2022-11-19 08:36:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_dma [2022-11-19 08:36:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 08:36:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2022-11-19 08:36:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2022-11-19 08:36:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 08:36:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 08:36:19,859 INFO L130 BoogieDeclarations]: Found specification of procedure get_queue [2022-11-19 08:36:19,859 INFO L138 BoogieDeclarations]: Found implementation of procedure get_queue [2022-11-19 08:36:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 08:36:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 08:36:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-19 08:36:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-19 08:36:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-19 08:36:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-19 08:36:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 08:36:19,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 08:36:19,860 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-19 08:36:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-19 08:36:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2022-11-19 08:36:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2022-11-19 08:36:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2022-11-19 08:36:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2022-11-19 08:36:19,861 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2022-11-19 08:36:19,861 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2022-11-19 08:36:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 08:36:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 08:36:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:36:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-19 08:36:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-19 08:36:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_101 [2022-11-19 08:36:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_101 [2022-11-19 08:36:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-19 08:36:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-19 08:36:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-19 08:36:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-19 08:36:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_tuner [2022-11-19 08:36:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_tuner [2022-11-19 08:36:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 08:36:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 08:36:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_start_vbi_dma [2022-11-19 08:36:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_start_vbi_dma [2022-11-19 08:36:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure cx88_ir_stop [2022-11-19 08:36:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure cx88_ir_stop [2022-11-19 08:36:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2022-11-19 08:36:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2022-11-19 08:36:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-19 08:36:19,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-19 08:36:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-19 08:36:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-19 08:36:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-19 08:36:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-19 08:36:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2022-11-19 08:36:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2022-11-19 08:36:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-11-19 08:36:19,865 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-11-19 08:36:19,865 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2022-11-19 08:36:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2022-11-19 08:36:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure get_resource [2022-11-19 08:36:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure get_resource [2022-11-19 08:36:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:36:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 08:36:19,866 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-11-19 08:36:19,866 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-11-19 08:36:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure cx8800_initdev [2022-11-19 08:36:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure cx8800_initdev [2022-11-19 08:36:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:36:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-19 08:36:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_slock_of_cx8800_dev [2022-11-19 08:36:19,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-19 08:36:19,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-19 08:36:21,764 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:36:21,768 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:36:22,189 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 08:36:40,883 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-19 08:36:41,113 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:36:43,349 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:36:43,349 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-19 08:36:43,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:43 BoogieIcfgContainer [2022-11-19 08:36:43,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:36:43,359 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:36:43,359 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:36:43,363 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:36:43,363 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:36:11" (1/3) ... [2022-11-19 08:36:43,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f4fbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:43, skipping insertion in model container [2022-11-19 08:36:43,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:36:18" (2/3) ... [2022-11-19 08:36:43,364 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38f4fbbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:36:43, skipping insertion in model container [2022-11-19 08:36:43,364 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:36:43" (3/3) ... [2022-11-19 08:36:43,366 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-pci-cx88-cx8800.cil.i [2022-11-19 08:36:43,388 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:36:43,388 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 08:36:43,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:36:43,537 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@59c7eee3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:36:43,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 08:36:43,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 2236 states, 1320 states have (on average 1.2992424242424243) internal successors, (1715), 1334 states have internal predecessors, (1715), 769 states have call successors, (769), 147 states have call predecessors, (769), 146 states have return successors, (762), 761 states have call predecessors, (762), 762 states have call successors, (762) [2022-11-19 08:36:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2022-11-19 08:36:43,621 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:43,623 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:43,623 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:36:43,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:43,637 INFO L85 PathProgramCache]: Analyzing trace with hash -830521440, now seen corresponding path program 1 times [2022-11-19 08:36:43,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:43,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657192909] [2022-11-19 08:36:43,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:43,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:44,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:45,753 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-19 08:36:45,754 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:45,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657192909] [2022-11-19 08:36:45,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657192909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:45,755 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:45,756 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:45,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297251414] [2022-11-19 08:36:45,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:45,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:45,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:45,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:45,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:45,805 INFO L87 Difference]: Start difference. First operand has 2236 states, 1320 states have (on average 1.2992424242424243) internal successors, (1715), 1334 states have internal predecessors, (1715), 769 states have call successors, (769), 147 states have call predecessors, (769), 146 states have return successors, (762), 761 states have call predecessors, (762), 762 states have call successors, (762) Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:36:51,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:36:52,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:36:52,945 INFO L93 Difference]: Finished difference Result 6316 states and 9194 transitions. [2022-11-19 08:36:52,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:36:52,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) Word has length 523 [2022-11-19 08:36:52,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:36:53,030 INFO L225 Difference]: With dead ends: 6316 [2022-11-19 08:36:53,030 INFO L226 Difference]: Without dead ends: 4115 [2022-11-19 08:36:53,058 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 [2022-11-19 08:36:53,065 INFO L413 NwaCegarLoop]: 3410 mSDtfsCounter, 2771 mSDsluCounter, 2712 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2771 SdHoareTripleChecker+Valid, 6122 SdHoareTripleChecker+Invalid, 1011 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:36:53,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2771 Valid, 6122 Invalid, 1011 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 993 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 08:36:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4115 states. [2022-11-19 08:36:53,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4115 to 4110. [2022-11-19 08:36:53,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4110 states, 2468 states have (on average 1.2917341977309562) internal successors, (3188), 2497 states have internal predecessors, (3188), 1353 states have call successors, (1353), 288 states have call predecessors, (1353), 288 states have return successors, (1353), 1348 states have call predecessors, (1353), 1353 states have call successors, (1353) [2022-11-19 08:36:53,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4110 states to 4110 states and 5894 transitions. [2022-11-19 08:36:53,714 INFO L78 Accepts]: Start accepts. Automaton has 4110 states and 5894 transitions. Word has length 523 [2022-11-19 08:36:53,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:36:53,719 INFO L495 AbstractCegarLoop]: Abstraction has 4110 states and 5894 transitions. [2022-11-19 08:36:53,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (52), 3 states have call predecessors, (52), 3 states have call successors, (52) [2022-11-19 08:36:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 4110 states and 5894 transitions. [2022-11-19 08:36:53,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2022-11-19 08:36:53,746 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:36:53,746 INFO L195 NwaCegarLoop]: trace histogram [50, 49, 49, 49, 49, 49, 49, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:36:53,747 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:36:53,747 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:36:53,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:36:53,748 INFO L85 PathProgramCache]: Analyzing trace with hash -561539430, now seen corresponding path program 1 times [2022-11-19 08:36:53,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:36:53,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442351129] [2022-11-19 08:36:53,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:36:53,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:36:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:36:55,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9506 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9506 trivial. 0 not checked. [2022-11-19 08:36:55,203 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:36:55,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442351129] [2022-11-19 08:36:55,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442351129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:36:55,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:36:55,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:36:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823536350] [2022-11-19 08:36:55,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:36:55,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:36:55,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:36:55,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:36:55,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:36:55,213 INFO L87 Difference]: Start difference. First operand 4110 states and 5894 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-19 08:37:01,082 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:37:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:02,354 INFO L93 Difference]: Finished difference Result 11824 states and 16940 transitions. [2022-11-19 08:37:02,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:02,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 528 [2022-11-19 08:37:02,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:02,429 INFO L225 Difference]: With dead ends: 11824 [2022-11-19 08:37:02,430 INFO L226 Difference]: Without dead ends: 7813 [2022-11-19 08:37:02,454 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 [2022-11-19 08:37:02,456 INFO L413 NwaCegarLoop]: 3433 mSDtfsCounter, 2767 mSDsluCounter, 2676 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2767 SdHoareTripleChecker+Valid, 6109 SdHoareTripleChecker+Invalid, 1000 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:02,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2767 Valid, 6109 Invalid, 1000 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [15 Valid, 984 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-19 08:37:02,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7813 states. [2022-11-19 08:37:02,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7813 to 7809. [2022-11-19 08:37:02,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7809 states, 4723 states have (on average 1.2947279271649375) internal successors, (6115), 4779 states have internal predecessors, (6115), 2523 states have call successors, (2523), 562 states have call predecessors, (2523), 562 states have return successors, (2523), 2511 states have call predecessors, (2523), 2523 states have call successors, (2523) [2022-11-19 08:37:03,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7809 states to 7809 states and 11161 transitions. [2022-11-19 08:37:03,063 INFO L78 Accepts]: Start accepts. Automaton has 7809 states and 11161 transitions. Word has length 528 [2022-11-19 08:37:03,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:03,068 INFO L495 AbstractCegarLoop]: Abstraction has 7809 states and 11161 transitions. [2022-11-19 08:37:03,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 3 states have call successors, (55), 2 states have call predecessors, (55), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2022-11-19 08:37:03,070 INFO L276 IsEmpty]: Start isEmpty. Operand 7809 states and 11161 transitions. [2022-11-19 08:37:03,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 543 [2022-11-19 08:37:03,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:03,095 INFO L195 NwaCegarLoop]: trace histogram [51, 49, 49, 49, 49, 49, 49, 2, 2, 2, 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, 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, 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, 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, 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, 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] [2022-11-19 08:37:03,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:37:03,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:03,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:03,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1241044998, now seen corresponding path program 1 times [2022-11-19 08:37:03,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:03,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855556286] [2022-11-19 08:37:03,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:03,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:03,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 9609 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9606 trivial. 0 not checked. [2022-11-19 08:37:04,607 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:04,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855556286] [2022-11-19 08:37:04,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855556286] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:04,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:04,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:37:04,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616849822] [2022-11-19 08:37:04,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:04,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:37:04,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:04,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:37:04,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:04,619 INFO L87 Difference]: Start difference. First operand 7809 states and 11161 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 08:37:06,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 08:37:11,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:37:12,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:12,839 INFO L93 Difference]: Finished difference Result 17280 states and 24635 transitions. [2022-11-19 08:37:12,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:12,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) Word has length 542 [2022-11-19 08:37:12,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:12,929 INFO L225 Difference]: With dead ends: 17280 [2022-11-19 08:37:12,930 INFO L226 Difference]: Without dead ends: 9570 [2022-11-19 08:37:12,981 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 [2022-11-19 08:37:12,986 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 2444 mSDsluCounter, 2672 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2444 SdHoareTripleChecker+Valid, 6013 SdHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:12,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2444 Valid, 6013 Invalid, 970 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 961 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-19 08:37:13,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9570 states. [2022-11-19 08:37:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9570 to 9567. [2022-11-19 08:37:13,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9567 states, 5802 states have (on average 1.2926577042399172) internal successors, (7500), 5870 states have internal predecessors, (7500), 3056 states have call successors, (3056), 708 states have call predecessors, (3056), 708 states have return successors, (3056), 3042 states have call predecessors, (3056), 3056 states have call successors, (3056) [2022-11-19 08:37:13,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9567 states to 9567 states and 13612 transitions. [2022-11-19 08:37:13,810 INFO L78 Accepts]: Start accepts. Automaton has 9567 states and 13612 transitions. Word has length 542 [2022-11-19 08:37:13,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:13,813 INFO L495 AbstractCegarLoop]: Abstraction has 9567 states and 13612 transitions. [2022-11-19 08:37:13,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (54), 3 states have call predecessors, (54), 3 states have call successors, (54) [2022-11-19 08:37:13,813 INFO L276 IsEmpty]: Start isEmpty. Operand 9567 states and 13612 transitions. [2022-11-19 08:37:13,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 558 [2022-11-19 08:37:13,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:13,834 INFO L195 NwaCegarLoop]: trace histogram [52, 51, 51, 51, 51, 51, 51, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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] [2022-11-19 08:37:13,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 08:37:13,835 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:13,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:13,836 INFO L85 PathProgramCache]: Analyzing trace with hash 886686357, now seen corresponding path program 1 times [2022-11-19 08:37:13,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:13,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941203663] [2022-11-19 08:37:13,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:13,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:15,404 INFO L134 CoverageAnalysis]: Checked inductivity of 10306 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10306 trivial. 0 not checked. [2022-11-19 08:37:15,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:15,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941203663] [2022-11-19 08:37:15,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941203663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:15,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:15,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:37:15,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326408090] [2022-11-19 08:37:15,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:15,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:37:15,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:15,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:37:15,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:15,408 INFO L87 Difference]: Start difference. First operand 9567 states and 13612 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-19 08:37:18,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:37:23,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:37:25,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:25,302 INFO L93 Difference]: Finished difference Result 23720 states and 33717 transitions. [2022-11-19 08:37:25,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:25,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 557 [2022-11-19 08:37:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:25,433 INFO L225 Difference]: With dead ends: 23720 [2022-11-19 08:37:25,433 INFO L226 Difference]: Without dead ends: 14252 [2022-11-19 08:37:25,480 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 [2022-11-19 08:37:25,484 INFO L413 NwaCegarLoop]: 3907 mSDtfsCounter, 2709 mSDsluCounter, 2654 mSDsCounter, 0 mSdLazyCounter, 1142 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2709 SdHoareTripleChecker+Valid, 6561 SdHoareTripleChecker+Invalid, 1157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1142 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:25,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2709 Valid, 6561 Invalid, 1157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1142 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-11-19 08:37:25,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14252 states. [2022-11-19 08:37:26,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14252 to 14244. [2022-11-19 08:37:26,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14244 states, 8639 states have (on average 1.285796967241579) internal successors, (11108), 8757 states have internal predecessors, (11108), 4544 states have call successors, (4544), 1060 states have call predecessors, (4544), 1060 states have return successors, (4544), 4514 states have call predecessors, (4544), 4544 states have call successors, (4544) [2022-11-19 08:37:26,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14244 states to 14244 states and 20196 transitions. [2022-11-19 08:37:26,329 INFO L78 Accepts]: Start accepts. Automaton has 14244 states and 20196 transitions. Word has length 557 [2022-11-19 08:37:26,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:26,330 INFO L495 AbstractCegarLoop]: Abstraction has 14244 states and 20196 transitions. [2022-11-19 08:37:26,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 3 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2022-11-19 08:37:26,331 INFO L276 IsEmpty]: Start isEmpty. Operand 14244 states and 20196 transitions. [2022-11-19 08:37:26,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2022-11-19 08:37:26,355 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:26,355 INFO L195 NwaCegarLoop]: trace histogram [51, 49, 49, 49, 49, 49, 49, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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] [2022-11-19 08:37:26,356 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 08:37:26,356 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:26,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:26,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1852755348, now seen corresponding path program 1 times [2022-11-19 08:37:26,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:26,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629783914] [2022-11-19 08:37:26,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:26,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:26,680 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:37:26,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [656113237] [2022-11-19 08:37:26,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:26,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:37:26,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:37:26,685 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:37:26,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:37:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:29,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 9478 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:37:29,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:37:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 9643 backedges. 196 proven. 0 refuted. 0 times theorem prover too weak. 9447 trivial. 0 not checked. [2022-11-19 08:37:29,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:37:29,881 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:29,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629783914] [2022-11-19 08:37:29,881 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:37:29,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656113237] [2022-11-19 08:37:29,882 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656113237] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:29,882 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:29,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:37:29,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016103534] [2022-11-19 08:37:29,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:29,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:37:29,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:29,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:37:29,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:29,886 INFO L87 Difference]: Start difference. First operand 14244 states and 20196 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-19 08:37:32,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:37:36,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:36,960 INFO L93 Difference]: Finished difference Result 34285 states and 48620 transitions. [2022-11-19 08:37:36,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:36,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 583 [2022-11-19 08:37:36,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:37,073 INFO L225 Difference]: With dead ends: 34285 [2022-11-19 08:37:37,073 INFO L226 Difference]: Without dead ends: 20777 [2022-11-19 08:37:37,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:37,123 INFO L413 NwaCegarLoop]: 3509 mSDtfsCounter, 2825 mSDsluCounter, 2570 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2825 SdHoareTripleChecker+Valid, 6079 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:37,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2825 Valid, 6079 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1024 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 08:37:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20777 states. [2022-11-19 08:37:38,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20777 to 20771. [2022-11-19 08:37:38,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20771 states, 12650 states have (on average 1.289802371541502) internal successors, (16316), 12824 states have internal predecessors, (16316), 6552 states have call successors, (6552), 1568 states have call predecessors, (6552), 1568 states have return successors, (6552), 6507 states have call predecessors, (6552), 6552 states have call successors, (6552) [2022-11-19 08:37:38,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20771 states to 20771 states and 29420 transitions. [2022-11-19 08:37:38,473 INFO L78 Accepts]: Start accepts. Automaton has 20771 states and 29420 transitions. Word has length 583 [2022-11-19 08:37:38,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:38,474 INFO L495 AbstractCegarLoop]: Abstraction has 20771 states and 29420 transitions. [2022-11-19 08:37:38,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 3 states have call successors, (62), 3 states have call predecessors, (62), 3 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2022-11-19 08:37:38,474 INFO L276 IsEmpty]: Start isEmpty. Operand 20771 states and 29420 transitions. [2022-11-19 08:37:38,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2022-11-19 08:37:38,489 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:38,489 INFO L195 NwaCegarLoop]: trace histogram [53, 49, 49, 49, 49, 49, 49, 5, 5, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:38,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 08:37:38,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:37:38,690 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:38,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:38,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1162021522, now seen corresponding path program 1 times [2022-11-19 08:37:38,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:38,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886207591] [2022-11-19 08:37:38,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:38,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:39,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:39,834 INFO L134 CoverageAnalysis]: Checked inductivity of 9845 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 9842 trivial. 0 not checked. [2022-11-19 08:37:39,834 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:39,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886207591] [2022-11-19 08:37:39,835 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886207591] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:39,835 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:37:39,835 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:37:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700433372] [2022-11-19 08:37:39,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:39,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:37:39,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:39,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:37:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:37:39,838 INFO L87 Difference]: Start difference. First operand 20771 states and 29420 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-19 08:37:45,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:37:47,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:37:47,049 INFO L93 Difference]: Finished difference Result 49986 states and 70850 transitions. [2022-11-19 08:37:47,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:37:47,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 579 [2022-11-19 08:37:47,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:37:47,211 INFO L225 Difference]: With dead ends: 49986 [2022-11-19 08:37:47,211 INFO L226 Difference]: Without dead ends: 29951 [2022-11-19 08:37:47,278 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 [2022-11-19 08:37:47,279 INFO L413 NwaCegarLoop]: 4015 mSDtfsCounter, 2762 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2762 SdHoareTripleChecker+Valid, 6683 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2022-11-19 08:37:47,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2762 Valid, 6683 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1121 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2022-11-19 08:37:47,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29951 states. [2022-11-19 08:37:48,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29951 to 29941. [2022-11-19 08:37:48,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29941 states, 18277 states have (on average 1.2911309295836297) internal successors, (23598), 18529 states have internal predecessors, (23598), 9385 states have call successors, (9385), 2278 states have call predecessors, (9385), 2278 states have return successors, (9385), 9314 states have call predecessors, (9385), 9385 states have call successors, (9385) [2022-11-19 08:37:49,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29941 states to 29941 states and 42368 transitions. [2022-11-19 08:37:49,036 INFO L78 Accepts]: Start accepts. Automaton has 29941 states and 42368 transitions. Word has length 579 [2022-11-19 08:37:49,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:37:49,038 INFO L495 AbstractCegarLoop]: Abstraction has 29941 states and 42368 transitions. [2022-11-19 08:37:49,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-19 08:37:49,038 INFO L276 IsEmpty]: Start isEmpty. Operand 29941 states and 42368 transitions. [2022-11-19 08:37:49,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2022-11-19 08:37:49,318 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:37:49,318 INFO L195 NwaCegarLoop]: trace histogram [54, 49, 49, 49, 49, 49, 49, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:37:49,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 08:37:49,319 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:37:49,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:37:49,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1772905077, now seen corresponding path program 1 times [2022-11-19 08:37:49,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:37:49,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607624407] [2022-11-19 08:37:49,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:49,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:37:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:51,045 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 9941 trivial. 0 not checked. [2022-11-19 08:37:51,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:37:51,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607624407] [2022-11-19 08:37:51,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607624407] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 08:37:51,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957362047] [2022-11-19 08:37:51,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:37:51,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:37:51,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:37:51,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:37:51,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:37:53,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:37:53,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 9437 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:37:53,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:37:54,110 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 9841 trivial. 0 not checked. [2022-11-19 08:37:54,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:37:54,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957362047] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:37:54,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 08:37:54,111 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 08:37:54,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973122012] [2022-11-19 08:37:54,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:37:54,113 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:37:54,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:37:54,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:37:54,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:37:54,114 INFO L87 Difference]: Start difference. First operand 29941 states and 42368 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-19 08:37:56,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:38:01,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:01,951 INFO L93 Difference]: Finished difference Result 70233 states and 99106 transitions. [2022-11-19 08:38:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:38:01,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 588 [2022-11-19 08:38:01,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:02,195 INFO L225 Difference]: With dead ends: 70233 [2022-11-19 08:38:02,195 INFO L226 Difference]: Without dead ends: 41028 [2022-11-19 08:38:02,304 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 589 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:38:02,305 INFO L413 NwaCegarLoop]: 3564 mSDtfsCounter, 2897 mSDsluCounter, 2526 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 43 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2897 SdHoareTripleChecker+Valid, 6090 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:02,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2897 Valid, 6090 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 1043 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 08:38:02,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41028 states. [2022-11-19 08:38:04,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41028 to 41016. [2022-11-19 08:38:04,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41016 states, 25054 states have (on average 1.2896942603975412) internal successors, (32312), 25394 states have internal predecessors, (32312), 12702 states have call successors, (12702), 3259 states have call predecessors, (12702), 3259 states have return successors, (12702), 12605 states have call predecessors, (12702), 12702 states have call successors, (12702) [2022-11-19 08:38:04,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41016 states to 41016 states and 57716 transitions. [2022-11-19 08:38:05,003 INFO L78 Accepts]: Start accepts. Automaton has 41016 states and 57716 transitions. Word has length 588 [2022-11-19 08:38:05,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:05,005 INFO L495 AbstractCegarLoop]: Abstraction has 41016 states and 57716 transitions. [2022-11-19 08:38:05,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 3 states have call successors, (63), 3 states have call predecessors, (63), 3 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2022-11-19 08:38:05,006 INFO L276 IsEmpty]: Start isEmpty. Operand 41016 states and 57716 transitions. [2022-11-19 08:38:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 618 [2022-11-19 08:38:05,038 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:05,039 INFO L195 NwaCegarLoop]: trace histogram [53, 51, 51, 51, 51, 51, 51, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:38:05,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:38:05,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:05,254 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:05,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:05,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2126720119, now seen corresponding path program 1 times [2022-11-19 08:38:05,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:05,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863738260] [2022-11-19 08:38:05,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:05,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:05,559 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:38:05,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1373723876] [2022-11-19 08:38:05,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:05,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:05,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:38:05,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:38:05,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:38:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:08,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 9496 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:38:08,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:38:08,952 INFO L134 CoverageAnalysis]: Checked inductivity of 10447 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 9459 trivial. 0 not checked. [2022-11-19 08:38:08,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:38:08,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863738260] [2022-11-19 08:38:08,953 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:38:08,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373723876] [2022-11-19 08:38:08,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373723876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:08,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:08,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:38:08,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989765924] [2022-11-19 08:38:08,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:08,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:38:08,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:08,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:38:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:38:08,957 INFO L87 Difference]: Start difference. First operand 41016 states and 57716 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-19 08:38:11,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:38:17,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:17,619 INFO L93 Difference]: Finished difference Result 95623 states and 134430 transitions. [2022-11-19 08:38:17,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:38:17,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) Word has length 617 [2022-11-19 08:38:17,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:17,927 INFO L225 Difference]: With dead ends: 95623 [2022-11-19 08:38:17,928 INFO L226 Difference]: Without dead ends: 55343 [2022-11-19 08:38:18,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 616 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:38:18,060 INFO L413 NwaCegarLoop]: 4112 mSDtfsCounter, 2793 mSDsluCounter, 2574 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 42 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 6686 SdHoareTripleChecker+Invalid, 1252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:18,060 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2793 Valid, 6686 Invalid, 1252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1209 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 08:38:18,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55343 states. [2022-11-19 08:38:20,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55343 to 55335. [2022-11-19 08:38:20,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55335 states, 33827 states have (on average 1.2895320306264226) internal successors, (43621), 34291 states have internal predecessors, (43621), 17021 states have call successors, (17021), 4486 states have call predecessors, (17021), 4486 states have return successors, (17021), 16890 states have call predecessors, (17021), 17021 states have call successors, (17021) [2022-11-19 08:38:21,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55335 states to 55335 states and 77663 transitions. [2022-11-19 08:38:21,236 INFO L78 Accepts]: Start accepts. Automaton has 55335 states and 77663 transitions. Word has length 617 [2022-11-19 08:38:21,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:21,238 INFO L495 AbstractCegarLoop]: Abstraction has 55335 states and 77663 transitions. [2022-11-19 08:38:21,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (66), 3 states have call predecessors, (66), 3 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-19 08:38:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 55335 states and 77663 transitions. [2022-11-19 08:38:21,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 611 [2022-11-19 08:38:21,275 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:21,276 INFO L195 NwaCegarLoop]: trace histogram [51, 49, 49, 49, 49, 49, 49, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 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] [2022-11-19 08:38:21,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 08:38:21,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:21,501 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:21,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:21,502 INFO L85 PathProgramCache]: Analyzing trace with hash 520601672, now seen corresponding path program 1 times [2022-11-19 08:38:21,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:21,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775689917] [2022-11-19 08:38:21,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:21,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:22,072 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:38:22,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1911160192] [2022-11-19 08:38:22,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:22,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:22,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:38:22,074 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:38:22,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 08:38:25,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:25,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 9654 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-19 08:38:25,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:38:25,331 INFO L134 CoverageAnalysis]: Checked inductivity of 9643 backedges. 206 proven. 0 refuted. 0 times theorem prover too weak. 9437 trivial. 0 not checked. [2022-11-19 08:38:25,331 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:38:25,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:25,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775689917] [2022-11-19 08:38:25,332 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:38:25,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911160192] [2022-11-19 08:38:25,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911160192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:25,333 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:25,333 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:38:25,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473859641] [2022-11-19 08:38:25,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:25,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:38:25,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:25,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:38:25,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:38:25,337 INFO L87 Difference]: Start difference. First operand 55335 states and 77663 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-19 08:38:29,368 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:38:35,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:38:35,679 INFO L93 Difference]: Finished difference Result 163203 states and 228702 transitions. [2022-11-19 08:38:35,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:38:35,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) Word has length 610 [2022-11-19 08:38:35,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:38:36,367 INFO L225 Difference]: With dead ends: 163203 [2022-11-19 08:38:36,367 INFO L226 Difference]: Without dead ends: 107967 [2022-11-19 08:38:36,608 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 608 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:38:36,610 INFO L413 NwaCegarLoop]: 3389 mSDtfsCounter, 3092 mSDsluCounter, 2492 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3092 SdHoareTripleChecker+Valid, 5881 SdHoareTripleChecker+Invalid, 949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-19 08:38:36,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3092 Valid, 5881 Invalid, 949 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16 Valid, 932 Invalid, 1 Unknown, 0 Unchecked, 6.1s Time] [2022-11-19 08:38:36,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107967 states. [2022-11-19 08:38:41,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107967 to 107899. [2022-11-19 08:38:41,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107899 states, 65946 states have (on average 1.2877505838109968) internal successors, (84922), 66914 states have internal predecessors, (84922), 33048 states have call successors, (33048), 8904 states have call predecessors, (33048), 8904 states have return successors, (33048), 32746 states have call predecessors, (33048), 33048 states have call successors, (33048) [2022-11-19 08:38:42,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107899 states to 107899 states and 151018 transitions. [2022-11-19 08:38:42,701 INFO L78 Accepts]: Start accepts. Automaton has 107899 states and 151018 transitions. Word has length 610 [2022-11-19 08:38:42,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:38:42,702 INFO L495 AbstractCegarLoop]: Abstraction has 107899 states and 151018 transitions. [2022-11-19 08:38:42,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (65), 3 states have call predecessors, (65), 3 states have return successors, (61), 3 states have call predecessors, (61), 3 states have call successors, (61) [2022-11-19 08:38:42,704 INFO L276 IsEmpty]: Start isEmpty. Operand 107899 states and 151018 transitions. [2022-11-19 08:38:42,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-11-19 08:38:42,745 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:38:42,746 INFO L195 NwaCegarLoop]: trace histogram [56, 51, 51, 51, 51, 51, 51, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 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, 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, 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, 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, 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, 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] [2022-11-19 08:38:42,778 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-11-19 08:38:42,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9987093-7ca3-43d5-866f-fa5989bafd69/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:38:42,971 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION === [kzallocErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:38:42,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:38:42,971 INFO L85 PathProgramCache]: Analyzing trace with hash 546697258, now seen corresponding path program 1 times [2022-11-19 08:38:42,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:38:42,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035497947] [2022-11-19 08:38:42,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:38:42,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:38:43,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:38:44,059 INFO L134 CoverageAnalysis]: Checked inductivity of 10770 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10763 trivial. 0 not checked. [2022-11-19 08:38:44,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:38:44,059 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035497947] [2022-11-19 08:38:44,059 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2035497947] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:38:44,059 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:38:44,060 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:38:44,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830680678] [2022-11-19 08:38:44,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:38:44,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:38:44,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:38:44,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:38:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:38:44,062 INFO L87 Difference]: Start difference. First operand 107899 states and 151018 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2022-11-19 08:38:48,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers []