./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:57:38,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:57:38,749 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-19 04:57:38,757 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:57:38,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:57:38,806 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:57:38,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:57:38,808 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:57:38,809 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:57:38,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:57:38,816 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:57:38,817 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:57:38,818 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:57:38,820 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:57:38,821 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:57:38,821 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:57:38,822 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:57:38,822 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:57:38,823 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:57:38,823 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:57:38,824 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:57:38,825 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:57:38,826 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:57:38,827 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:57:38,827 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:57:38,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:57:38,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:57:38,829 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:57:38,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:57:38,830 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:57:38,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:57:38,832 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:57:38,832 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:57:38,832 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:57:38,833 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:57:38,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:57:38,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:38,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:57:38,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:57:38,834 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:57:38,835 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:57:38,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:57:38,836 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:57:38,837 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:57:38,837 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:57:38,837 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13096ecc896a778cf08851ae14dc5c7b87ba00c42e74b90edd25cd2cb7c21f17 [2023-11-19 04:57:39,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:57:39,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:57:39,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:57:39,224 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:57:39,225 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:57:39,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2023-11-19 04:57:42,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:57:43,235 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:57:43,236 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c [2023-11-19 04:57:43,310 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/data/321bbcd90/ca2a829cd9f048feb0f20fd3f6bc1924/FLAG6d17f3b60 [2023-11-19 04:57:43,330 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/data/321bbcd90/ca2a829cd9f048feb0f20fd3f6bc1924 [2023-11-19 04:57:43,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:57:43,340 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:57:43,344 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:43,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:57:43,352 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:57:43,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@557f43a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:43, skipping insertion in model container [2023-11-19 04:57:43,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:57:43" (1/1) ... [2023-11-19 04:57:43,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:57:44,477 WARN L240 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_4f1b4b6c-eceb-438e-add0-af198c5a565a/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c[77246,77259] [2023-11-19 04:57:45,242 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:45,321 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:57:45,334 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [21] [2023-11-19 04:57:45,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [24] [2023-11-19 04:57:45,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [25] [2023-11-19 04:57:45,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [26] [2023-11-19 04:57:45,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [187] [2023-11-19 04:57:45,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [193] [2023-11-19 04:57:45,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [440] [2023-11-19 04:57:45,337 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [494] [2023-11-19 04:57:45,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [514] [2023-11-19 04:57:45,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [515] [2023-11-19 04:57:45,338 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1217] [2023-11-19 04:57:45,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1390] [2023-11-19 04:57:45,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1469] [2023-11-19 04:57:45,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1470] [2023-11-19 04:57:45,339 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1471] [2023-11-19 04:57:45,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1472] [2023-11-19 04:57:45,340 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1473] [2023-11-19 04:57:45,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1474] [2023-11-19 04:57:45,341 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1475] [2023-11-19 04:57:45,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1476] [2023-11-19 04:57:45,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1477] [2023-11-19 04:57:45,342 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1478] [2023-11-19 04:57:45,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [1723] [2023-11-19 04:57:45,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1724] [2023-11-19 04:57:45,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1727] [2023-11-19 04:57:45,343 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1728] [2023-11-19 04:57:45,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1729] [2023-11-19 04:57:45,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1730] [2023-11-19 04:57:45,344 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1731] [2023-11-19 04:57:45,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1732] [2023-11-19 04:57:45,345 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1739] [2023-11-19 04:57:45,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1740] [2023-11-19 04:57:45,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1743] [2023-11-19 04:57:45,346 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1744] [2023-11-19 04:57:45,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1745] [2023-11-19 04:57:45,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1749] [2023-11-19 04:57:45,347 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1750] [2023-11-19 04:57:45,348 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1772] [2023-11-19 04:57:45,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1773] [2023-11-19 04:57:45,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1774] [2023-11-19 04:57:45,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1780] [2023-11-19 04:57:45,349 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1781] [2023-11-19 04:57:45,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [1782] [2023-11-19 04:57:45,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [1783] [2023-11-19 04:57:45,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [1784] [2023-11-19 04:57:45,350 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1785] [2023-11-19 04:57:45,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1786] [2023-11-19 04:57:45,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1787] [2023-11-19 04:57:45,351 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1788] [2023-11-19 04:57:45,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1789] [2023-11-19 04:57:45,352 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1843] [2023-11-19 04:57:45,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1844] [2023-11-19 04:57:45,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [1908] [2023-11-19 04:57:45,353 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [1909] [2023-11-19 04:57:45,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1921] [2023-11-19 04:57:45,354 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1922] [2023-11-19 04:57:45,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1923] [2023-11-19 04:57:45,355 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1924] [2023-11-19 04:57:45,356 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1925] [2023-11-19 04:57:45,358 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1926] [2023-11-19 04:57:45,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1927] [2023-11-19 04:57:45,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1928] [2023-11-19 04:57:45,359 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1929] [2023-11-19 04:57:45,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1930] [2023-11-19 04:57:45,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(INIT,DriverEntry) [2069] [2023-11-19 04:57:45,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyAddDevice) [2070] [2023-11-19 04:57:45,360 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyPnp) [2071] [2023-11-19 04:57:45,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyPower) [2072] [2023-11-19 04:57:45,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlConfigCallBack) [2073] [2023-11-19 04:57:45,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlInitializeControllerHardware) [2074] [2023-11-19 04:57:45,361 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlInterpretError) [2075] [2023-11-19 04:57:45,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlDatarateSpecifyConfigure) [2076] [2023-11-19 04:57:45,362 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlRecalibrateDrive) [2077] [2023-11-19 04:57:45,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlDetermineMediaType) [2078] [2023-11-19 04:57:45,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlCheckBootSector) [2079] [2023-11-19 04:57:45,363 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlConsolidateMediaTypeWithBootSector) [2080] [2023-11-19 04:57:45,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlIssueCommand) [2081] [2023-11-19 04:57:45,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlReadWriteTrack) [2082] [2023-11-19 04:57:45,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlReadWrite) [2083] [2023-11-19 04:57:45,364 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFormat) [2084] [2023-11-19 04:57:45,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFinishOperation) [2085] [2023-11-19 04:57:45,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlStartDrive) [2086] [2023-11-19 04:57:45,365 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyThread) [2087] [2023-11-19 04:57:45,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlAllocateIoBuffer) [2088] [2023-11-19 04:57:45,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFreeIoBuffer) [2089] [2023-11-19 04:57:45,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyCreateClose) [2090] [2023-11-19 04:57:45,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyDeviceControl) [2091] [2023-11-19 04:57:45,368 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FloppyReadWrite) [2092] [2023-11-19 04:57:45,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlCheckFormatParameters) [2093] [2023-11-19 04:57:45,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlFdcDeviceIo) [2094] [2023-11-19 04:57:45,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,FlHdbit) [2095] [2023-11-19 04:57:45,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7008] [2023-11-19 04:57:45,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7009] [2023-11-19 04:57:45,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7010] [2023-11-19 04:57:45,370 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7011] [2023-11-19 04:57:45,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7012] [2023-11-19 04:57:45,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7013] [2023-11-19 04:57:45,371 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7014] [2023-11-19 04:57:45,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7015] [2023-11-19 04:57:45,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [7016] [2023-11-19 04:57:45,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [7017] [2023-11-19 04:57:45,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [7018] [2023-11-19 04:57:45,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [7019] [2023-11-19 04:57:45,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [7020] [2023-11-19 04:57:45,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [7021] [2023-11-19 04:57:45,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7022] [2023-11-19 04:57:45,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7023] [2023-11-19 04:57:45,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7024] [2023-11-19 04:57:45,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7025] [2023-11-19 04:57:45,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7026] [2023-11-19 04:57:45,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [7027] [2023-11-19 04:57:45,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [7028] [2023-11-19 04:57:45,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [7029] [2023-11-19 04:57:45,475 WARN L240 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_4f1b4b6c-eceb-438e-add0-af198c5a565a/sv-benchmarks/c/ntdrivers/floppy.i.cil-3.c[77246,77259] [2023-11-19 04:57:45,903 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:57:46,012 WARN L675 CHandler]: The function swprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:46,012 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:57:46,021 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:57:46,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46 WrapperNode [2023-11-19 04:57:46,023 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:57:46,024 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:46,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:57:46,025 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:57:46,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,146 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,284 INFO L138 Inliner]: procedures = 128, calls = 2897, calls flagged for inlining = 37, calls inlined = 26, statements flattened = 3197 [2023-11-19 04:57:46,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:57:46,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:57:46,286 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:57:46,286 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:57:46,297 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,331 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,486 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,514 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,545 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,566 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,600 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:57:46,601 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:57:46,602 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:57:46,602 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:57:46,603 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (1/1) ... [2023-11-19 04:57:46,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:57:46,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:57:46,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:57:46,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f1b4b6c-eceb-438e-add0-af198c5a565a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:57:46,690 INFO L130 BoogieDeclarations]: Found specification of procedure IoGetConfigurationInformation [2023-11-19 04:57:46,690 INFO L138 BoogieDeclarations]: Found implementation of procedure IoGetConfigurationInformation [2023-11-19 04:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:57:46,691 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-11-19 04:57:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-11-19 04:57:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure IoSetDeviceInterfaceState [2023-11-19 04:57:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure IoSetDeviceInterfaceState [2023-11-19 04:57:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyCreateClose [2023-11-19 04:57:46,692 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyCreateClose [2023-11-19 04:57:46,692 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyPnpComplete [2023-11-19 04:57:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyPnpComplete [2023-11-19 04:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-11-19 04:57:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-11-19 04:57:46,693 INFO L130 BoogieDeclarations]: Found specification of procedure InterlockedExchange [2023-11-19 04:57:46,693 INFO L138 BoogieDeclarations]: Found implementation of procedure InterlockedExchange [2023-11-19 04:57:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:57:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:57:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-11-19 04:57:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-11-19 04:57:46,694 INFO L130 BoogieDeclarations]: Found specification of procedure FlQueueIrpToThread [2023-11-19 04:57:46,694 INFO L138 BoogieDeclarations]: Found implementation of procedure FlQueueIrpToThread [2023-11-19 04:57:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyDeviceControl [2023-11-19 04:57:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyDeviceControl [2023-11-19 04:57:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:57:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:57:46,695 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyProcessQueuedRequests [2023-11-19 04:57:46,695 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyProcessQueuedRequests [2023-11-19 04:57:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure ExfInterlockedInsertTailList [2023-11-19 04:57:46,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ExfInterlockedInsertTailList [2023-11-19 04:57:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:57:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:57:46,696 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-11-19 04:57:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-11-19 04:57:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:57:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure FlFdcDeviceIo [2023-11-19 04:57:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure FlFdcDeviceIo [2023-11-19 04:57:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:57:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure KeWaitForSingleObject [2023-11-19 04:57:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure KeWaitForSingleObject [2023-11-19 04:57:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove [2023-11-19 04:57:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove [2023-11-19 04:57:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:57:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_guard [2023-11-19 04:57:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_guard [2023-11-19 04:57:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure FloppyQueueRequest [2023-11-19 04:57:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure FloppyQueueRequest [2023-11-19 04:57:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:57:46,699 INFO L130 BoogieDeclarations]: Found specification of procedure ExAllocatePoolWithTag [2023-11-19 04:57:46,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ExAllocatePoolWithTag [2023-11-19 04:57:46,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:57:46,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:57:47,179 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:57:47,182 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:57:47,258 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:47,290 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-19 04:57:47,290 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-19 04:57:47,295 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:47,743 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2023-11-19 04:57:47,744 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2023-11-19 04:57:47,792 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:47,810 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume !false; [2023-11-19 04:57:47,810 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##15: assume false; [2023-11-19 04:57:47,989 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:48,021 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-11-19 04:57:48,021 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-11-19 04:57:48,022 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:48,024 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:48,024 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:48,159 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2023-11-19 04:57:48,159 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##24: assume !false; [2023-11-19 04:57:48,159 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##23: assume false; [2023-11-19 04:57:48,159 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2023-11-19 04:57:48,159 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2023-11-19 04:57:48,160 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2023-11-19 04:57:48,162 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:48,171 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:48,173 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,128 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume !false; [2023-11-19 04:57:49,128 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##37: assume false; [2023-11-19 04:57:49,128 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##139: assume false; [2023-11-19 04:57:49,128 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##140: assume !false; [2023-11-19 04:57:49,129 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##124: assume !false; [2023-11-19 04:57:49,129 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##123: assume false; [2023-11-19 04:57:49,173 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,236 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##4: assume !false; [2023-11-19 04:57:49,236 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##3: assume false; [2023-11-19 04:57:49,245 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,247 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,249 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,251 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,252 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,256 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,257 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:49,258 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:57:54,360 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##89: assume !false; [2023-11-19 04:57:54,360 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume false; [2023-11-19 04:57:54,360 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##127: assume !false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume !false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##26: assume false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##261: assume false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##262: assume !false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##147: assume !false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##146: assume false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##214: assume !false; [2023-11-19 04:57:54,361 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##213: assume false; [2023-11-19 04:57:54,362 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##228: assume !false; [2023-11-19 04:57:54,362 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##227: assume false; [2023-11-19 04:57:54,362 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##126: assume false; [2023-11-19 04:57:54,431 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:57:55,812 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:57:55,812 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:57:55,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:55 BoogieIcfgContainer [2023-11-19 04:57:55,830 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:57:55,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:57:55,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:57:55,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:57:55,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:57:43" (1/3) ... [2023-11-19 04:57:55,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270c0273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:55, skipping insertion in model container [2023-11-19 04:57:55,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:57:46" (2/3) ... [2023-11-19 04:57:55,842 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270c0273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:57:55, skipping insertion in model container [2023-11-19 04:57:55,842 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:57:55" (3/3) ... [2023-11-19 04:57:55,844 INFO L112 eAbstractionObserver]: Analyzing ICFG floppy.i.cil-3.c [2023-11-19 04:57:55,871 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:57:55,871 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:57:55,979 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:57:55,991 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=LoopHeads, 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;@121ead08, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:57:55,992 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:57:56,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 422 states, 305 states have (on average 1.5540983606557377) internal successors, (474), 338 states have internal predecessors, (474), 95 states have call successors, (95), 20 states have call predecessors, (95), 20 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) [2023-11-19 04:57:56,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:57:56,016 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:57:56,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:57:56,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:57:56,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:57:56,028 INFO L85 PathProgramCache]: Analyzing trace with hash 294383411, now seen corresponding path program 1 times [2023-11-19 04:57:56,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:57:56,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994984120] [2023-11-19 04:57:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:57:56,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:57:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:57:57,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:57:57,477 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:57:57,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994984120] [2023-11-19 04:57:57,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994984120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:57:57,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:57:57,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:57:57,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170026068] [2023-11-19 04:57:57,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:57:57,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:57:57,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:57:57,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:57:57,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:57:57,537 INFO L87 Difference]: Start difference. First operand has 422 states, 305 states have (on average 1.5540983606557377) internal successors, (474), 338 states have internal predecessors, (474), 95 states have call successors, (95), 20 states have call predecessors, (95), 20 states have return successors, (95), 89 states have call predecessors, (95), 95 states have call successors, (95) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:58:01,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:03,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:06,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:06,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:06,564 INFO L93 Difference]: Finished difference Result 1036 states and 1692 transitions. [2023-11-19 04:58:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:06,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-11-19 04:58:06,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:06,593 INFO L225 Difference]: With dead ends: 1036 [2023-11-19 04:58:06,594 INFO L226 Difference]: Without dead ends: 666 [2023-11-19 04:58:06,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:06,612 INFO L413 NwaCegarLoop]: 600 mSDtfsCounter, 466 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 28 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1001 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:06,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [466 Valid, 1001 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 242 Invalid, 3 Unknown, 0 Unchecked, 8.8s Time] [2023-11-19 04:58:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2023-11-19 04:58:06,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 647. [2023-11-19 04:58:06,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 488 states have (on average 1.5020491803278688) internal successors, (733), 516 states have internal predecessors, (733), 125 states have call successors, (125), 37 states have call predecessors, (125), 33 states have return successors, (122), 101 states have call predecessors, (122), 110 states have call successors, (122) [2023-11-19 04:58:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 980 transitions. [2023-11-19 04:58:06,766 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 980 transitions. Word has length 20 [2023-11-19 04:58:06,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:06,766 INFO L495 AbstractCegarLoop]: Abstraction has 647 states and 980 transitions. [2023-11-19 04:58:06,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:58:06,767 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 980 transitions. [2023-11-19 04:58:06,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 04:58:06,770 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:06,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:06,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:58:06,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:06,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:06,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1194155506, now seen corresponding path program 1 times [2023-11-19 04:58:06,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:06,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56143550] [2023-11-19 04:58:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:06,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:07,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:07,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:07,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56143550] [2023-11-19 04:58:07,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56143550] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:07,396 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:07,396 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:07,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104222714] [2023-11-19 04:58:07,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:07,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:07,399 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:07,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:07,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:07,401 INFO L87 Difference]: Start difference. First operand 647 states and 980 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:58:09,486 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:13,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:15,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:15,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:15,356 INFO L93 Difference]: Finished difference Result 670 states and 1007 transitions. [2023-11-19 04:58:15,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:15,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 20 [2023-11-19 04:58:15,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:15,367 INFO L225 Difference]: With dead ends: 670 [2023-11-19 04:58:15,368 INFO L226 Difference]: Without dead ends: 652 [2023-11-19 04:58:15,369 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 [2023-11-19 04:58:15,371 INFO L413 NwaCegarLoop]: 539 mSDtfsCounter, 11 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1030 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:15,371 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1030 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 177 Invalid, 3 Unknown, 0 Unchecked, 7.9s Time] [2023-11-19 04:58:15,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2023-11-19 04:58:15,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2023-11-19 04:58:15,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 491 states have (on average 1.4989816700610998) internal successors, (736), 519 states have internal predecessors, (736), 125 states have call successors, (125), 39 states have call predecessors, (125), 35 states have return successors, (122), 101 states have call predecessors, (122), 110 states have call successors, (122) [2023-11-19 04:58:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 983 transitions. [2023-11-19 04:58:15,433 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 983 transitions. Word has length 20 [2023-11-19 04:58:15,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:15,434 INFO L495 AbstractCegarLoop]: Abstraction has 652 states and 983 transitions. [2023-11-19 04:58:15,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-19 04:58:15,434 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 983 transitions. [2023-11-19 04:58:15,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 04:58:15,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:15,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:15,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:58:15,438 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:15,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:15,439 INFO L85 PathProgramCache]: Analyzing trace with hash 760270507, now seen corresponding path program 1 times [2023-11-19 04:58:15,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:15,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609671480] [2023-11-19 04:58:15,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:15,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:16,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:16,197 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:16,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609671480] [2023-11-19 04:58:16,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609671480] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:16,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:16,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791997142] [2023-11-19 04:58:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:16,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:16,201 INFO L87 Difference]: Start difference. First operand 652 states and 983 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 04:58:19,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:20,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:20,145 INFO L93 Difference]: Finished difference Result 1116 states and 1709 transitions. [2023-11-19 04:58:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:20,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 30 [2023-11-19 04:58:20,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:20,158 INFO L225 Difference]: With dead ends: 1116 [2023-11-19 04:58:20,158 INFO L226 Difference]: Without dead ends: 1097 [2023-11-19 04:58:20,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:20,162 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 574 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:20,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 909 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2023-11-19 04:58:20,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2023-11-19 04:58:20,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1073. [2023-11-19 04:58:20,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1073 states, 820 states have (on average 1.5182926829268293) internal successors, (1245), 859 states have internal predecessors, (1245), 193 states have call successors, (193), 63 states have call predecessors, (193), 59 states have return successors, (215), 163 states have call predecessors, (215), 178 states have call successors, (215) [2023-11-19 04:58:20,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1653 transitions. [2023-11-19 04:58:20,247 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1653 transitions. Word has length 30 [2023-11-19 04:58:20,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:20,247 INFO L495 AbstractCegarLoop]: Abstraction has 1073 states and 1653 transitions. [2023-11-19 04:58:20,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-19 04:58:20,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1653 transitions. [2023-11-19 04:58:20,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 04:58:20,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:20,251 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:20,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:58:20,252 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:20,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:20,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1665804656, now seen corresponding path program 1 times [2023-11-19 04:58:20,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:20,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783426823] [2023-11-19 04:58:20,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:20,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:20,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:20,629 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:20,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783426823] [2023-11-19 04:58:20,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783426823] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:20,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:20,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:20,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206133207] [2023-11-19 04:58:20,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:20,634 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:20,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:20,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:20,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:20,636 INFO L87 Difference]: Start difference. First operand 1073 states and 1653 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:58:22,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:26,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:28,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:30,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:58:30,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:58:30,947 INFO L93 Difference]: Finished difference Result 1514 states and 2356 transitions. [2023-11-19 04:58:30,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:58:30,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2023-11-19 04:58:30,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:58:30,963 INFO L225 Difference]: With dead ends: 1514 [2023-11-19 04:58:30,963 INFO L226 Difference]: Without dead ends: 1511 [2023-11-19 04:58:30,964 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 [2023-11-19 04:58:30,966 INFO L413 NwaCegarLoop]: 854 mSDtfsCounter, 373 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 266 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 1344 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 266 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:58:30,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 1344 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 266 Invalid, 4 Unknown, 0 Unchecked, 10.2s Time] [2023-11-19 04:58:30,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2023-11-19 04:58:31,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1439. [2023-11-19 04:58:31,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1439 states, 1118 states have (on average 1.539355992844365) internal successors, (1721), 1163 states have internal predecessors, (1721), 239 states have call successors, (239), 85 states have call predecessors, (239), 81 states have return successors, (284), 203 states have call predecessors, (284), 224 states have call successors, (284) [2023-11-19 04:58:31,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1439 states to 1439 states and 2244 transitions. [2023-11-19 04:58:31,075 INFO L78 Accepts]: Start accepts. Automaton has 1439 states and 2244 transitions. Word has length 29 [2023-11-19 04:58:31,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:58:31,076 INFO L495 AbstractCegarLoop]: Abstraction has 1439 states and 2244 transitions. [2023-11-19 04:58:31,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:58:31,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1439 states and 2244 transitions. [2023-11-19 04:58:31,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 04:58:31,079 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:58:31,079 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:58:31,079 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:58:31,080 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:58:31,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:58:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash -678116358, now seen corresponding path program 1 times [2023-11-19 04:58:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:58:31,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676799854] [2023-11-19 04:58:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:58:31,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:58:31,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:58:31,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:58:31,594 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:58:31,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676799854] [2023-11-19 04:58:31,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676799854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:58:31,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:58:31,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:58:31,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351791619] [2023-11-19 04:58:31,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:58:31,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:58:31,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:58:31,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:58:31,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:58:31,597 INFO L87 Difference]: Start difference. First operand 1439 states and 2244 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-19 04:58:33,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []