./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh --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 791fd4c1f54f973c646b3f11f7eb2f654eca269cacf7e504443ee0d13fbe9694 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 13:14:49,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 13:14:49,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-12-02 13:14:49,884 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 13:14:49,885 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 13:14:49,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 13:14:49,909 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 13:14:49,910 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 13:14:49,911 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 13:14:49,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 13:14:49,912 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 13:14:49,913 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 13:14:49,913 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 13:14:49,914 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 13:14:49,914 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 13:14:49,915 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 13:14:49,915 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 13:14:49,916 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 13:14:49,916 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 13:14:49,917 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 13:14:49,917 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 13:14:49,919 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 13:14:49,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 13:14:49,920 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 13:14:49,921 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 13:14:49,921 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 13:14:49,921 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 13:14:49,922 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 13:14:49,922 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 13:14:49,922 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 13:14:49,923 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 13:14:49,923 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 13:14:49,923 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 13:14:49,924 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 13:14:49,924 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 13:14:49,924 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 13:14:49,924 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 13:14:49,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:14:49,925 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 13:14:49,925 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 13:14:49,925 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 13:14:49,926 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 13:14:49,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 13:14:49,926 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 13:14:49,926 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 13:14:49,926 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 13:14:49,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 13:14:49,927 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_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 791fd4c1f54f973c646b3f11f7eb2f654eca269cacf7e504443ee0d13fbe9694 [2023-12-02 13:14:50,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 13:14:50,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 13:14:50,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 13:14:50,186 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 13:14:50,187 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 13:14:50,188 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c [2023-12-02 13:14:53,018 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 13:14:53,339 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 13:14:53,340 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c [2023-12-02 13:14:53,368 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/data/3f34d1c95/e87e459eee9542fd8da8cc5bc5b2ce5f/FLAG7666f29f2 [2023-12-02 13:14:53,384 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/data/3f34d1c95/e87e459eee9542fd8da8cc5bc5b2ce5f [2023-12-02 13:14:53,387 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 13:14:53,389 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 13:14:53,390 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 13:14:53,391 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 13:14:53,397 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 13:14:53,398 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:14:53" (1/1) ... [2023-12-02 13:14:53,399 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@be95bd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:53, skipping insertion in model container [2023-12-02 13:14:53,399 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:14:53" (1/1) ... [2023-12-02 13:14:53,492 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 13:14:53,926 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_141c725f-3023-4034-805a-307d7892f84b/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c[62209,62222] [2023-12-02 13:14:54,100 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:14:54,115 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 13:14:54,126 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [16] [2023-12-02 13:14:54,128 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [17] [2023-12-02 13:14:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [175] [2023-12-02 13:14:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [181] [2023-12-02 13:14:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [402] [2023-12-02 13:14:54,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [455] [2023-12-02 13:14:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [474] [2023-12-02 13:14:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [475] [2023-12-02 13:14:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1148] [2023-12-02 13:14:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1321] [2023-12-02 13:14:54,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,8) [1417] [2023-12-02 13:14:54,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1418] [2023-12-02 13:14:54,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1421] [2023-12-02 13:14:54,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1422] [2023-12-02 13:14:54,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1423] [2023-12-02 13:14:54,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1424] [2023-12-02 13:14:54,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,1) [1425] [2023-12-02 13:14:54,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1426] [2023-12-02 13:14:54,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(push,4) [1433] [2023-12-02 13:14:54,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma pack(pop) [1434] [2023-12-02 13:14:54,132 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1435] [2023-12-02 13:14:54,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1436] [2023-12-02 13:14:54,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1437] [2023-12-02 13:14:54,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1441] [2023-12-02 13:14:54,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1442] [2023-12-02 13:14:54,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1464] [2023-12-02 13:14:54,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1465] [2023-12-02 13:14:54,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1466] [2023-12-02 13:14:54,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [1473] [2023-12-02 13:14:54,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [1474] [2023-12-02 13:14:54,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [1475] [2023-12-02 13:14:54,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [1476] [2023-12-02 13:14:54,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [1477] [2023-12-02 13:14:54,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [1478] [2023-12-02 13:14:54,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1479] [2023-12-02 13:14:54,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1480] [2023-12-02 13:14:54,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1481] [2023-12-02 13:14:54,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1482] [2023-12-02 13:14:54,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1535] [2023-12-02 13:14:54,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [1536] [2023-12-02 13:14:54,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [1600] [2023-12-02 13:14:54,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [1601] [2023-12-02 13:14:54,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(INIT,DriverEntry) [1642] [2023-12-02 13:14:54,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_AddDevice) [1643] [2023-12-02 13:14:54,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_CreateClose) [1644] [2023-12-02 13:14:54,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_IoCtl) [1645] [2023-12-02 13:14:54,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_InternIoCtl) [1646] [2023-12-02 13:14:54,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_Unload) [1647] [2023-12-02 13:14:54,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_DispatchPassThrough) [1648] [2023-12-02 13:14:54,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_PnP) [1649] [2023-12-02 13:14:54,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma alloc_text(PAGE,KbFilter_Power) [1650] [2023-12-02 13:14:54,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2349] [2023-12-02 13:14:54,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2350] [2023-12-02 13:14:54,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2351] [2023-12-02 13:14:54,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2352] [2023-12-02 13:14:54,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2353] [2023-12-02 13:14:54,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2354] [2023-12-02 13:14:54,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2355] [2023-12-02 13:14:54,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2356] [2023-12-02 13:14:54,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4035) [2357] [2023-12-02 13:14:54,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(push) [2358] [2023-12-02 13:14:54,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4164) [2359] [2023-12-02 13:14:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_enable) [2360] [2023-12-02 13:14:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma function(_disable) [2361] [2023-12-02 13:14:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(pop) [2362] [2023-12-02 13:14:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2363] [2023-12-02 13:14:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2364] [2023-12-02 13:14:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2365] [2023-12-02 13:14:54,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2366] [2023-12-02 13:14:54,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2367] [2023-12-02 13:14:54,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4103) [2368] [2023-12-02 13:14:54,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(disable:4200) [2369] [2023-12-02 13:14:54,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma warning(default:4200) [2370] [2023-12-02 13:14:54,233 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_141c725f-3023-4034-805a-307d7892f84b/sv-benchmarks/c/ntdrivers/kbfiltr.i.cil-2.c[62209,62222] [2023-12-02 13:14:54,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 13:14:54,370 INFO L206 MainTranslator]: Completed translation [2023-12-02 13:14:54,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54 WrapperNode [2023-12-02 13:14:54,371 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 13:14:54,372 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 13:14:54,372 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 13:14:54,372 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 13:14:54,381 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,423 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,488 INFO L138 Inliner]: procedures = 109, calls = 328, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 1141 [2023-12-02 13:14:54,488 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 13:14:54,489 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 13:14:54,489 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 13:14:54,489 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 13:14:54,500 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,514 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,568 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,595 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,610 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 13:14:54,611 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 13:14:54,611 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 13:14:54,612 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 13:14:54,613 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (1/1) ... [2023-12-02 13:14:54,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 13:14:54,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:14:54,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 13:14:54,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 13:14:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_Complete [2023-12-02 13:14:54,683 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_Complete [2023-12-02 13:14:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 13:14:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 13:14:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 13:14:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 13:14:54,683 INFO L130 BoogieDeclarations]: Found specification of procedure errorFn [2023-12-02 13:14:54,684 INFO L138 BoogieDeclarations]: Found implementation of procedure errorFn [2023-12-02 13:14:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 13:14:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure IofCompleteRequest [2023-12-02 13:14:54,684 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCompleteRequest [2023-12-02 13:14:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure IofCallDriver [2023-12-02 13:14:54,684 INFO L138 BoogieDeclarations]: Found implementation of procedure IofCallDriver [2023-12-02 13:14:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 13:14:54,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 13:14:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 13:14:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 13:14:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure stubMoreProcessingRequired [2023-12-02 13:14:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure stubMoreProcessingRequired [2023-12-02 13:14:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_CreateClose [2023-12-02 13:14:54,685 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_CreateClose [2023-12-02 13:14:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 13:14:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 13:14:54,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 13:14:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 13:14:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 13:14:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 13:14:54,686 INFO L130 BoogieDeclarations]: Found specification of procedure KbFilter_DispatchPassThrough [2023-12-02 13:14:54,686 INFO L138 BoogieDeclarations]: Found implementation of procedure KbFilter_DispatchPassThrough [2023-12-02 13:14:55,002 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 13:14:55,005 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 13:14:55,062 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:55,099 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##12: assume !false; [2023-12-02 13:14:55,099 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume false; [2023-12-02 13:14:55,176 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:55,177 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:55,180 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:55,185 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:55,189 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:55,194 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:55,196 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-12-02 13:14:57,810 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##96: assume !false; [2023-12-02 13:14:57,811 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##95: assume false; [2023-12-02 13:14:57,811 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##180: assume false; [2023-12-02 13:14:57,811 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##181: assume !false; [2023-12-02 13:14:57,811 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##48: assume !false; [2023-12-02 13:14:57,811 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##47: assume false; [2023-12-02 13:14:57,811 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##137: assume false; [2023-12-02 13:14:57,811 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##138: assume !false; [2023-12-02 13:14:57,812 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##20: assume !false; [2023-12-02 13:14:57,812 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume false; [2023-12-02 13:14:57,812 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##10: assume false; [2023-12-02 13:14:57,812 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##11: assume !false; [2023-12-02 13:14:57,812 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##164: assume !false; [2023-12-02 13:14:57,812 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##163: assume false; [2023-12-02 13:14:57,837 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 13:14:58,479 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 13:14:58,480 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 13:14:58,482 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:14:58 BoogieIcfgContainer [2023-12-02 13:14:58,482 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 13:14:58,485 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 13:14:58,485 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 13:14:58,488 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 13:14:58,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 01:14:53" (1/3) ... [2023-12-02 13:14:58,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ad342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:14:58, skipping insertion in model container [2023-12-02 13:14:58,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:14:54" (2/3) ... [2023-12-02 13:14:58,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ad342 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 01:14:58, skipping insertion in model container [2023-12-02 13:14:58,490 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:14:58" (3/3) ... [2023-12-02 13:14:58,491 INFO L112 eAbstractionObserver]: Analyzing ICFG kbfiltr.i.cil-2.c [2023-12-02 13:14:58,511 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 13:14:58,512 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 13:14:58,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 13:14:58,576 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;@a8920e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 13:14:58,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 13:14:58,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 108 states have (on average 1.6203703703703705) internal successors, (175), 126 states have internal predecessors, (175), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2023-12-02 13:14:58,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-02 13:14:58,591 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:14:58,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:14:58,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:14:58,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:14:58,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1176593509, now seen corresponding path program 1 times [2023-12-02 13:14:58,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:14:58,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538740221] [2023-12-02 13:14:58,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:14:58,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:14:58,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:14:59,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:14:59,257 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:14:59,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538740221] [2023-12-02 13:14:59,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538740221] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:14:59,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:14:59,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-02 13:14:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611704327] [2023-12-02 13:14:59,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:14:59,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:14:59,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:14:59,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:14:59,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:14:59,295 INFO L87 Difference]: Start difference. First operand has 146 states, 108 states have (on average 1.6203703703703705) internal successors, (175), 126 states have internal predecessors, (175), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:01,325 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 [] [2023-12-02 13:15:02,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:02,400 INFO L93 Difference]: Finished difference Result 248 states and 394 transitions. [2023-12-02 13:15:02,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:15:02,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-12-02 13:15:02,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:02,415 INFO L225 Difference]: With dead ends: 248 [2023-12-02 13:15:02,415 INFO L226 Difference]: Without dead ends: 142 [2023-12-02 13:15:02,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:15:02,423 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 96 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:02,424 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 261 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-12-02 13:15:02,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-12-02 13:15:02,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-12-02 13:15:02,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 106 states have (on average 1.5) internal successors, (159), 122 states have internal predecessors, (159), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-02 13:15:02,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 203 transitions. [2023-12-02 13:15:02,478 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 203 transitions. Word has length 11 [2023-12-02 13:15:02,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:02,478 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 203 transitions. [2023-12-02 13:15:02,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:02,479 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 203 transitions. [2023-12-02 13:15:02,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 13:15:02,480 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:02,480 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:15:02,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 13:15:02,480 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:02,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:02,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1164418732, now seen corresponding path program 1 times [2023-12-02 13:15:02,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:02,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701289599] [2023-12-02 13:15:02,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:02,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:02,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:02,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:02,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701289599] [2023-12-02 13:15:02,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701289599] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:02,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:02,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:02,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610993407] [2023-12-02 13:15:02,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:02,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:15:02,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:02,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:15:02,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:15:02,765 INFO L87 Difference]: Start difference. First operand 142 states and 203 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:04,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:06,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:07,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:07,737 INFO L93 Difference]: Finished difference Result 216 states and 300 transitions. [2023-12-02 13:15:07,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:15:07,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2023-12-02 13:15:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:07,741 INFO L225 Difference]: With dead ends: 216 [2023-12-02 13:15:07,741 INFO L226 Difference]: Without dead ends: 169 [2023-12-02 13:15:07,742 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 [2023-12-02 13:15:07,744 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 98 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 12 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:07,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 216 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 106 Invalid, 2 Unknown, 0 Unchecked, 4.9s Time] [2023-12-02 13:15:07,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-02 13:15:07,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 154. [2023-12-02 13:15:07,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 120 states have (on average 1.4083333333333334) internal successors, (169), 129 states have internal predecessors, (169), 26 states have call successors, (26), 11 states have call predecessors, (26), 7 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2023-12-02 13:15:07,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 213 transitions. [2023-12-02 13:15:07,767 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 213 transitions. Word has length 13 [2023-12-02 13:15:07,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:07,768 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 213 transitions. [2023-12-02 13:15:07,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:07,769 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 213 transitions. [2023-12-02 13:15:07,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 13:15:07,770 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:07,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:15:07,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 13:15:07,771 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:07,771 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:07,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1094751147, now seen corresponding path program 1 times [2023-12-02 13:15:07,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:07,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533157872] [2023-12-02 13:15:07,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:07,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:08,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:08,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:08,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533157872] [2023-12-02 13:15:08,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533157872] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:08,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:08,029 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:08,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748829234] [2023-12-02 13:15:08,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:08,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:15:08,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:08,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:15:08,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:15:08,031 INFO L87 Difference]: Start difference. First operand 154 states and 213 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:10,043 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 [] [2023-12-02 13:15:11,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:11,021 INFO L93 Difference]: Finished difference Result 247 states and 334 transitions. [2023-12-02 13:15:11,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:15:11,021 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2023-12-02 13:15:11,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:11,024 INFO L225 Difference]: With dead ends: 247 [2023-12-02 13:15:11,024 INFO L226 Difference]: Without dead ends: 189 [2023-12-02 13:15:11,025 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 [2023-12-02 13:15:11,026 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 153 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:11,027 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 219 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 47 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-12-02 13:15:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2023-12-02 13:15:11,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 167. [2023-12-02 13:15:11,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 136 states have (on average 1.3823529411764706) internal successors, (188), 142 states have internal predecessors, (188), 22 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:11,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 227 transitions. [2023-12-02 13:15:11,041 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 227 transitions. Word has length 16 [2023-12-02 13:15:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:11,041 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 227 transitions. [2023-12-02 13:15:11,041 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 227 transitions. [2023-12-02 13:15:11,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 13:15:11,044 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:11,044 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:15:11,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 13:15:11,045 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:11,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:11,045 INFO L85 PathProgramCache]: Analyzing trace with hash -1599792531, now seen corresponding path program 1 times [2023-12-02 13:15:11,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:11,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575910852] [2023-12-02 13:15:11,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:11,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:11,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:11,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:11,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575910852] [2023-12-02 13:15:11,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575910852] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:11,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:11,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:11,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326349482] [2023-12-02 13:15:11,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:11,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:15:11,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:11,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:15:11,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:11,413 INFO L87 Difference]: Start difference. First operand 167 states and 227 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:13,425 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 [] [2023-12-02 13:15:15,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:16,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:17,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:17,711 INFO L93 Difference]: Finished difference Result 190 states and 253 transitions. [2023-12-02 13:15:17,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:15:17,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2023-12-02 13:15:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:17,714 INFO L225 Difference]: With dead ends: 190 [2023-12-02 13:15:17,714 INFO L226 Difference]: Without dead ends: 182 [2023-12-02 13:15:17,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:15:17,716 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 265 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:17,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 152 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 136 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2023-12-02 13:15:17,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2023-12-02 13:15:17,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 172. [2023-12-02 13:15:17,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 141 states have (on average 1.375886524822695) internal successors, (194), 147 states have internal predecessors, (194), 22 states have call successors, (22), 11 states have call predecessors, (22), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:17,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 233 transitions. [2023-12-02 13:15:17,753 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 233 transitions. Word has length 18 [2023-12-02 13:15:17,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:17,753 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 233 transitions. [2023-12-02 13:15:17,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:17,754 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 233 transitions. [2023-12-02 13:15:17,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 13:15:17,756 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:17,756 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:15:17,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 13:15:17,756 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:17,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:17,764 INFO L85 PathProgramCache]: Analyzing trace with hash 872074277, now seen corresponding path program 1 times [2023-12-02 13:15:17,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:17,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340363975] [2023-12-02 13:15:17,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:17,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:18,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:18,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:18,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340363975] [2023-12-02 13:15:18,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340363975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:18,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:18,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:18,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419252379] [2023-12-02 13:15:18,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:18,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:15:18,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:18,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:15:18,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:15:18,024 INFO L87 Difference]: Start difference. First operand 172 states and 233 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:20,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:22,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:23,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:23,807 INFO L93 Difference]: Finished difference Result 175 states and 235 transitions. [2023-12-02 13:15:23,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:15:23,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-02 13:15:23,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:23,810 INFO L225 Difference]: With dead ends: 175 [2023-12-02 13:15:23,810 INFO L226 Difference]: Without dead ends: 171 [2023-12-02 13:15:23,810 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 [2023-12-02 13:15:23,811 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 13 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:23,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 235 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 99 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2023-12-02 13:15:23,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2023-12-02 13:15:23,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 171. [2023-12-02 13:15:23,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 141 states have (on average 1.3617021276595744) internal successors, (192), 146 states have internal predecessors, (192), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 230 transitions. [2023-12-02 13:15:23,830 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 230 transitions. Word has length 19 [2023-12-02 13:15:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:23,831 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 230 transitions. [2023-12-02 13:15:23,831 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 230 transitions. [2023-12-02 13:15:23,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 13:15:23,833 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:23,833 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:15:23,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 13:15:23,834 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:23,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1538617565, now seen corresponding path program 1 times [2023-12-02 13:15:23,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:23,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135591298] [2023-12-02 13:15:23,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:23,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:24,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:24,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:24,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135591298] [2023-12-02 13:15:24,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135591298] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:24,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:24,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:24,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392132885] [2023-12-02 13:15:24,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:24,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:15:24,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:24,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:15:24,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:24,230 INFO L87 Difference]: Start difference. First operand 171 states and 230 transitions. Second operand has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:26,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:28,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:29,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:29,236 INFO L93 Difference]: Finished difference Result 189 states and 249 transitions. [2023-12-02 13:15:29,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:15:29,237 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-12-02 13:15:29,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:29,239 INFO L225 Difference]: With dead ends: 189 [2023-12-02 13:15:29,239 INFO L226 Difference]: Without dead ends: 181 [2023-12-02 13:15:29,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:15:29,241 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 261 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 26 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:29,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 152 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 131 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2023-12-02 13:15:29,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-12-02 13:15:29,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2023-12-02 13:15:29,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 142 states have (on average 1.3591549295774648) internal successors, (193), 147 states have internal predecessors, (193), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:29,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 231 transitions. [2023-12-02 13:15:29,260 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 231 transitions. Word has length 19 [2023-12-02 13:15:29,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:29,261 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 231 transitions. [2023-12-02 13:15:29,261 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.5) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:29,261 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 231 transitions. [2023-12-02 13:15:29,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-02 13:15:29,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:29,263 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] [2023-12-02 13:15:29,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 13:15:29,263 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:29,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:29,264 INFO L85 PathProgramCache]: Analyzing trace with hash 214087076, now seen corresponding path program 1 times [2023-12-02 13:15:29,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:29,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401426632] [2023-12-02 13:15:29,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:29,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:29,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:29,599 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:29,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401426632] [2023-12-02 13:15:29,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401426632] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:29,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:29,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:29,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390916883] [2023-12-02 13:15:29,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:29,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:15:29,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:29,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:15:29,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:29,602 INFO L87 Difference]: Start difference. First operand 172 states and 231 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:31,613 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 [] [2023-12-02 13:15:32,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:32,575 INFO L93 Difference]: Finished difference Result 181 states and 240 transitions. [2023-12-02 13:15:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:15:32,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-12-02 13:15:32,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:32,577 INFO L225 Difference]: With dead ends: 181 [2023-12-02 13:15:32,577 INFO L226 Difference]: Without dead ends: 164 [2023-12-02 13:15:32,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:15:32,579 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 246 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:32,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 153 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 3.0s Time] [2023-12-02 13:15:32,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-02 13:15:32,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-12-02 13:15:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 134 states have (on average 1.3656716417910448) internal successors, (183), 139 states have internal predecessors, (183), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:32,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 221 transitions. [2023-12-02 13:15:32,592 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 221 transitions. Word has length 20 [2023-12-02 13:15:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:32,592 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 221 transitions. [2023-12-02 13:15:32,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 221 transitions. [2023-12-02 13:15:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-02 13:15:32,594 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:32,594 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] [2023-12-02 13:15:32,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 13:15:32,594 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:32,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:32,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1406655203, now seen corresponding path program 1 times [2023-12-02 13:15:32,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:32,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3227149] [2023-12-02 13:15:32,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:32,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:32,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:32,956 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:32,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3227149] [2023-12-02 13:15:32,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3227149] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:32,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:32,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:32,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285828803] [2023-12-02 13:15:32,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:32,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:15:32,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:32,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:15:32,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:32,958 INFO L87 Difference]: Start difference. First operand 164 states and 221 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:34,974 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 [] [2023-12-02 13:15:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:36,966 INFO L93 Difference]: Finished difference Result 212 states and 281 transitions. [2023-12-02 13:15:36,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:15:36,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-12-02 13:15:36,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:36,968 INFO L225 Difference]: With dead ends: 212 [2023-12-02 13:15:36,968 INFO L226 Difference]: Without dead ends: 179 [2023-12-02 13:15:36,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:15:36,969 INFO L413 NwaCegarLoop]: 130 mSDtfsCounter, 191 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 23 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:36,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 205 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 13:15:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2023-12-02 13:15:36,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 164. [2023-12-02 13:15:36,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 134 states have (on average 1.3507462686567164) internal successors, (181), 139 states have internal predecessors, (181), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:36,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 219 transitions. [2023-12-02 13:15:36,987 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 219 transitions. Word has length 26 [2023-12-02 13:15:36,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:36,988 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 219 transitions. [2023-12-02 13:15:36,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:36,988 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 219 transitions. [2023-12-02 13:15:36,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-02 13:15:36,989 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:36,989 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] [2023-12-02 13:15:36,990 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 13:15:36,990 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:36,990 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash 2005333869, now seen corresponding path program 1 times [2023-12-02 13:15:36,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:36,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971101592] [2023-12-02 13:15:36,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:36,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:37,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:37,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:37,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:37,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971101592] [2023-12-02 13:15:37,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971101592] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:37,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:37,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:37,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463906537] [2023-12-02 13:15:37,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:37,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:15:37,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:37,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:15:37,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:37,442 INFO L87 Difference]: Start difference. First operand 164 states and 219 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:39,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:41,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:43,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:43,512 INFO L93 Difference]: Finished difference Result 197 states and 261 transitions. [2023-12-02 13:15:43,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:15:43,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2023-12-02 13:15:43,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:43,515 INFO L225 Difference]: With dead ends: 197 [2023-12-02 13:15:43,515 INFO L226 Difference]: Without dead ends: 164 [2023-12-02 13:15:43,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:15:43,516 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 176 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:43,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 202 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 126 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2023-12-02 13:15:43,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2023-12-02 13:15:43,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2023-12-02 13:15:43,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 134 states have (on average 1.335820895522388) internal successors, (179), 139 states have internal predecessors, (179), 21 states have call successors, (21), 11 states have call predecessors, (21), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:43,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 217 transitions. [2023-12-02 13:15:43,528 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 217 transitions. Word has length 27 [2023-12-02 13:15:43,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:43,529 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 217 transitions. [2023-12-02 13:15:43,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:43,529 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 217 transitions. [2023-12-02 13:15:43,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 13:15:43,530 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:43,530 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] [2023-12-02 13:15:43,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 13:15:43,530 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:43,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:43,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1897855624, now seen corresponding path program 1 times [2023-12-02 13:15:43,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:43,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183648601] [2023-12-02 13:15:43,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:43,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:43,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:43,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:43,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183648601] [2023-12-02 13:15:43,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183648601] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:43,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:43,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:43,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766436034] [2023-12-02 13:15:43,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:43,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:15:43,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:43,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:15:43,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:15:43,767 INFO L87 Difference]: Start difference. First operand 164 states and 217 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:45,778 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 [] [2023-12-02 13:15:47,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:47,009 INFO L93 Difference]: Finished difference Result 176 states and 232 transitions. [2023-12-02 13:15:47,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:15:47,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2023-12-02 13:15:47,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:47,011 INFO L225 Difference]: With dead ends: 176 [2023-12-02 13:15:47,011 INFO L226 Difference]: Without dead ends: 160 [2023-12-02 13:15:47,011 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 [2023-12-02 13:15:47,012 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 159 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:47,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 134 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2023-12-02 13:15:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-12-02 13:15:47,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-12-02 13:15:47,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 131 states have (on average 1.3206106870229009) internal successors, (173), 135 states have internal predecessors, (173), 20 states have call successors, (20), 11 states have call predecessors, (20), 8 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2023-12-02 13:15:47,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 210 transitions. [2023-12-02 13:15:47,029 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 210 transitions. Word has length 28 [2023-12-02 13:15:47,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:47,029 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 210 transitions. [2023-12-02 13:15:47,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:47,029 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 210 transitions. [2023-12-02 13:15:47,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-02 13:15:47,031 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:47,031 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] [2023-12-02 13:15:47,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 13:15:47,031 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:47,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:47,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1245992100, now seen corresponding path program 1 times [2023-12-02 13:15:47,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:47,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328612158] [2023-12-02 13:15:47,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:47,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:47,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:47,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:47,325 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:47,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328612158] [2023-12-02 13:15:47,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328612158] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:47,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:47,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:15:47,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303165098] [2023-12-02 13:15:47,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:47,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:15:47,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:47,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:15:47,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:47,328 INFO L87 Difference]: Start difference. First operand 160 states and 210 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:15:49,339 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 [] [2023-12-02 13:15:51,348 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 [] [2023-12-02 13:15:52,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:52,892 INFO L93 Difference]: Finished difference Result 198 states and 248 transitions. [2023-12-02 13:15:52,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:15:52,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2023-12-02 13:15:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:52,894 INFO L225 Difference]: With dead ends: 198 [2023-12-02 13:15:52,894 INFO L226 Difference]: Without dead ends: 159 [2023-12-02 13:15:52,894 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:52,895 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 184 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:52,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 277 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 105 Invalid, 2 Unknown, 0 Unchecked, 5.5s Time] [2023-12-02 13:15:52,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-12-02 13:15:52,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 144. [2023-12-02 13:15:52,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 117 states have (on average 1.2991452991452992) internal successors, (152), 121 states have internal predecessors, (152), 18 states have call successors, (18), 10 states have call predecessors, (18), 8 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2023-12-02 13:15:52,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 184 transitions. [2023-12-02 13:15:52,907 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 184 transitions. Word has length 30 [2023-12-02 13:15:52,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:52,907 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 184 transitions. [2023-12-02 13:15:52,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:15:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 184 transitions. [2023-12-02 13:15:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-12-02 13:15:52,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:52,909 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] [2023-12-02 13:15:52,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 13:15:52,909 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:52,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:52,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1304549810, now seen corresponding path program 1 times [2023-12-02 13:15:52,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:52,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920501289] [2023-12-02 13:15:52,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:52,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:53,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:53,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920501289] [2023-12-02 13:15:53,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920501289] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:53,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:53,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:53,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372136280] [2023-12-02 13:15:53,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:53,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:15:53,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:53,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:15:53,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:15:53,331 INFO L87 Difference]: Start difference. First operand 144 states and 184 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:55,343 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 [] [2023-12-02 13:15:56,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:15:57,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:15:57,909 INFO L93 Difference]: Finished difference Result 179 states and 226 transitions. [2023-12-02 13:15:57,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:15:57,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2023-12-02 13:15:57,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:15:57,911 INFO L225 Difference]: With dead ends: 179 [2023-12-02 13:15:57,911 INFO L226 Difference]: Without dead ends: 110 [2023-12-02 13:15:57,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:15:57,912 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 183 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 16 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-12-02 13:15:57,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 212 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 127 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2023-12-02 13:15:57,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-12-02 13:15:57,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 93. [2023-12-02 13:15:57,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 77 states have (on average 1.3246753246753247) internal successors, (102), 80 states have internal predecessors, (102), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 13:15:57,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 118 transitions. [2023-12-02 13:15:57,920 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 118 transitions. Word has length 29 [2023-12-02 13:15:57,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:15:57,921 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 118 transitions. [2023-12-02 13:15:57,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-02 13:15:57,921 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 118 transitions. [2023-12-02 13:15:57,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 13:15:57,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:15:57,922 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, 1, 1, 1] [2023-12-02 13:15:57,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 13:15:57,922 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:15:57,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:15:57,923 INFO L85 PathProgramCache]: Analyzing trace with hash -881659241, now seen corresponding path program 1 times [2023-12-02 13:15:57,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:15:57,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894142299] [2023-12-02 13:15:57,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:15:57,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:15:58,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:15:58,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:15:58,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:15:58,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894142299] [2023-12-02 13:15:58,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894142299] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:15:58,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:15:58,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:15:58,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850994291] [2023-12-02 13:15:58,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:15:58,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:15:58,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:15:58,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:15:58,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:15:58,154 INFO L87 Difference]: Start difference. First operand 93 states and 118 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 13:16:00,166 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 [] [2023-12-02 13:16:02,172 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 [] [2023-12-02 13:16:04,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:04,585 INFO L93 Difference]: Finished difference Result 130 states and 162 transitions. [2023-12-02 13:16:04,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:16:04,585 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-12-02 13:16:04,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:04,586 INFO L225 Difference]: With dead ends: 130 [2023-12-02 13:16:04,587 INFO L226 Difference]: Without dead ends: 91 [2023-12-02 13:16:04,587 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 [2023-12-02 13:16:04,588 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:04,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2023-12-02 13:16:04,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-02 13:16:04,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-12-02 13:16:04,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.3026315789473684) internal successors, (99), 78 states have internal predecessors, (99), 9 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 13:16:04,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 114 transitions. [2023-12-02 13:16:04,600 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 114 transitions. Word has length 33 [2023-12-02 13:16:04,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:04,600 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 114 transitions. [2023-12-02 13:16:04,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 13:16:04,601 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 114 transitions. [2023-12-02 13:16:04,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 13:16:04,601 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:04,601 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, 1, 1, 1] [2023-12-02 13:16:04,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-12-02 13:16:04,602 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:04,602 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:04,602 INFO L85 PathProgramCache]: Analyzing trace with hash -1461795427, now seen corresponding path program 1 times [2023-12-02 13:16:04,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:04,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210255859] [2023-12-02 13:16:04,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:04,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:04,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:05,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:16:05,078 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:05,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210255859] [2023-12-02 13:16:05,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210255859] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:05,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:05,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:16:05,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325658219] [2023-12-02 13:16:05,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:05,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:16:05,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:05,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:16:05,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:16:05,080 INFO L87 Difference]: Start difference. First operand 91 states and 114 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:16:07,094 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 [] [2023-12-02 13:16:09,100 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:11,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:13,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:14,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:14,897 INFO L93 Difference]: Finished difference Result 99 states and 120 transitions. [2023-12-02 13:16:14,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:16:14,898 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2023-12-02 13:16:14,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:14,899 INFO L225 Difference]: With dead ends: 99 [2023-12-02 13:16:14,899 INFO L226 Difference]: Without dead ends: 93 [2023-12-02 13:16:14,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:16:14,900 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 109 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:14,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 163 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 102 Invalid, 3 Unknown, 0 Unchecked, 9.8s Time] [2023-12-02 13:16:14,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2023-12-02 13:16:14,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 91. [2023-12-02 13:16:14,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.2894736842105263) internal successors, (98), 78 states have internal predecessors, (98), 9 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 13:16:14,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 113 transitions. [2023-12-02 13:16:14,910 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 113 transitions. Word has length 33 [2023-12-02 13:16:14,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:14,910 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 113 transitions. [2023-12-02 13:16:14,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:16:14,911 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 113 transitions. [2023-12-02 13:16:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 13:16:14,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:14,911 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, 1, 1, 1, 1, 1] [2023-12-02 13:16:14,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-12-02 13:16:14,912 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:14,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:14,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1738148318, now seen corresponding path program 1 times [2023-12-02 13:16:14,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:14,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522680671] [2023-12-02 13:16:14,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:14,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:16:15,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:15,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522680671] [2023-12-02 13:16:15,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522680671] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:15,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:15,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 13:16:15,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917289287] [2023-12-02 13:16:15,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:15,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:16:15,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:15,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:16:15,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 13:16:15,230 INFO L87 Difference]: Start difference. First operand 91 states and 113 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 13:16:17,243 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 [] [2023-12-02 13:16:19,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:21,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:23,678 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 [] [2023-12-02 13:16:25,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:25,593 INFO L93 Difference]: Finished difference Result 178 states and 220 transitions. [2023-12-02 13:16:25,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:16:25,594 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2023-12-02 13:16:25,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:25,594 INFO L225 Difference]: With dead ends: 178 [2023-12-02 13:16:25,594 INFO L226 Difference]: Without dead ends: 91 [2023-12-02 13:16:25,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:16:25,595 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 1 mSDsluCounter, 159 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:25,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 241 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 60 Invalid, 4 Unknown, 0 Unchecked, 10.3s Time] [2023-12-02 13:16:25,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-12-02 13:16:25,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2023-12-02 13:16:25,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 76 states have (on average 1.2763157894736843) internal successors, (97), 78 states have internal predecessors, (97), 9 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 13:16:25,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 112 transitions. [2023-12-02 13:16:25,607 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 112 transitions. Word has length 35 [2023-12-02 13:16:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:25,608 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 112 transitions. [2023-12-02 13:16:25,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-02 13:16:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 112 transitions. [2023-12-02 13:16:25,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 13:16:25,609 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:25,609 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, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:25,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-12-02 13:16:25,609 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:25,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:25,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1952772000, now seen corresponding path program 1 times [2023-12-02 13:16:25,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:25,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737296922] [2023-12-02 13:16:25,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:25,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:25,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:26,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:16:26,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:26,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737296922] [2023-12-02 13:16:26,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737296922] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:26,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:26,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:16:26,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017322732] [2023-12-02 13:16:26,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:26,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:16:26,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:26,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:16:26,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:16:26,028 INFO L87 Difference]: Start difference. First operand 91 states and 112 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 13:16:28,042 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 [] [2023-12-02 13:16:30,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:32,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:34,059 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 [] [2023-12-02 13:16:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:37,947 INFO L93 Difference]: Finished difference Result 128 states and 155 transitions. [2023-12-02 13:16:37,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:16:37,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2023-12-02 13:16:37,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:37,948 INFO L225 Difference]: With dead ends: 128 [2023-12-02 13:16:37,948 INFO L226 Difference]: Without dead ends: 89 [2023-12-02 13:16:37,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:16:37,949 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 6 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:37,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 307 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 79 Invalid, 4 Unknown, 0 Unchecked, 11.9s Time] [2023-12-02 13:16:37,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-02 13:16:37,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-02 13:16:37,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 74 states have (on average 1.2702702702702702) internal successors, (94), 76 states have internal predecessors, (94), 9 states have call successors, (9), 7 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 13:16:37,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 109 transitions. [2023-12-02 13:16:37,958 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 109 transitions. Word has length 36 [2023-12-02 13:16:37,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:37,959 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 109 transitions. [2023-12-02 13:16:37,959 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-12-02 13:16:37,959 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 109 transitions. [2023-12-02 13:16:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 13:16:37,959 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:37,959 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, 1, 1, 1, 1, 1] [2023-12-02 13:16:37,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2023-12-02 13:16:37,960 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:37,960 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:37,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1026787048, now seen corresponding path program 1 times [2023-12-02 13:16:37,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:37,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693420354] [2023-12-02 13:16:37,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:37,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:16:38,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:38,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693420354] [2023-12-02 13:16:38,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693420354] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:38,329 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:38,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:16:38,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260581294] [2023-12-02 13:16:38,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:38,329 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:16:38,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:38,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:16:38,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:16:38,331 INFO L87 Difference]: Start difference. First operand 89 states and 109 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:16:40,343 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 [] [2023-12-02 13:16:42,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:44,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:46,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:49,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:50,308 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:52,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:52,552 INFO L93 Difference]: Finished difference Result 104 states and 123 transitions. [2023-12-02 13:16:52,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 13:16:52,552 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 35 [2023-12-02 13:16:52,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:52,553 INFO L225 Difference]: With dead ends: 104 [2023-12-02 13:16:52,553 INFO L226 Difference]: Without dead ends: 68 [2023-12-02 13:16:52,554 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 13:16:52,554 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 12 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:52,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 305 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 87 Invalid, 4 Unknown, 0 Unchecked, 14.2s Time] [2023-12-02 13:16:52,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2023-12-02 13:16:52,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2023-12-02 13:16:52,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.1818181818181819) internal successors, (65), 57 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 13:16:52,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 78 transitions. [2023-12-02 13:16:52,561 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 78 transitions. Word has length 35 [2023-12-02 13:16:52,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:52,561 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 78 transitions. [2023-12-02 13:16:52,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-12-02 13:16:52,561 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2023-12-02 13:16:52,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 13:16:52,562 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:52,562 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:52,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-12-02 13:16:52,562 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:52,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:52,563 INFO L85 PathProgramCache]: Analyzing trace with hash -161579687, now seen corresponding path program 1 times [2023-12-02 13:16:52,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:52,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599401560] [2023-12-02 13:16:52,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:52,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:16:52,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:16:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:16:53,013 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:16:53,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599401560] [2023-12-02 13:16:53,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599401560] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:16:53,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:16:53,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 13:16:53,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915493151] [2023-12-02 13:16:53,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:16:53,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 13:16:53,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:16:53,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 13:16:53,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 13:16:53,015 INFO L87 Difference]: Start difference. First operand 68 states and 78 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:16:55,029 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 [] [2023-12-02 13:16:57,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:58,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:16:58,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:16:58,918 INFO L93 Difference]: Finished difference Result 107 states and 122 transitions. [2023-12-02 13:16:58,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:16:58,919 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2023-12-02 13:16:58,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:16:58,920 INFO L225 Difference]: With dead ends: 107 [2023-12-02 13:16:58,920 INFO L226 Difference]: Without dead ends: 70 [2023-12-02 13:16:58,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-12-02 13:16:58,921 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 55 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2023-12-02 13:16:58,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 114 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2023-12-02 13:16:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-12-02 13:16:58,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2023-12-02 13:16:58,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 55 states have (on average 1.1636363636363636) internal successors, (64), 57 states have internal predecessors, (64), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 13:16:58,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2023-12-02 13:16:58,931 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 40 [2023-12-02 13:16:58,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:16:58,931 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2023-12-02 13:16:58,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 3 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:16:58,932 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2023-12-02 13:16:58,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 13:16:58,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:16:58,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:16:58,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-12-02 13:16:58,933 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:16:58,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:16:58,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1190302459, now seen corresponding path program 1 times [2023-12-02 13:16:58,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:16:58,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540785595] [2023-12-02 13:16:58,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:16:58,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:17:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:00,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:17:00,653 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:17:00,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540785595] [2023-12-02 13:17:00,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540785595] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:17:00,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:17:00,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:17:00,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350038964] [2023-12-02 13:17:00,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:17:00,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:17:00,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:17:00,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:17:00,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:17:00,655 INFO L87 Difference]: Start difference. First operand 68 states and 77 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:17:02,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:04,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:05,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:17:05,260 INFO L93 Difference]: Finished difference Result 133 states and 151 transitions. [2023-12-02 13:17:05,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:17:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2023-12-02 13:17:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:17:05,261 INFO L225 Difference]: With dead ends: 133 [2023-12-02 13:17:05,261 INFO L226 Difference]: Without dead ends: 69 [2023-12-02 13:17:05,261 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 [2023-12-02 13:17:05,262 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:17:05,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 107 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 4.6s Time] [2023-12-02 13:17:05,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2023-12-02 13:17:05,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2023-12-02 13:17:05,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 58 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 13:17:05,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2023-12-02 13:17:05,269 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 41 [2023-12-02 13:17:05,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:17:05,270 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2023-12-02 13:17:05,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:17:05,270 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2023-12-02 13:17:05,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 13:17:05,270 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:17:05,270 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:17:05,270 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-12-02 13:17:05,271 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:17:05,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:17:05,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1152332278, now seen corresponding path program 1 times [2023-12-02 13:17:05,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:17:05,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139100470] [2023-12-02 13:17:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:05,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:17:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:06,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:17:06,234 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:17:06,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139100470] [2023-12-02 13:17:06,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139100470] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:17:06,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051435762] [2023-12-02 13:17:06,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:06,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:17:06,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:17:06,238 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:17:06,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 13:17:07,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:07,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 1005 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 13:17:07,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:17:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:17:07,242 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-02 13:17:07,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051435762] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:17:07,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-02 13:17:07,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2023-12-02 13:17:07,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60694370] [2023-12-02 13:17:07,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:17:07,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 13:17:07,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:17:07,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 13:17:07,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-02 13:17:07,245 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 13:17:09,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:11,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:13,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:15,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:17,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:19,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:20,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:17:20,918 INFO L93 Difference]: Finished difference Result 76 states and 86 transitions. [2023-12-02 13:17:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:17:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2023-12-02 13:17:20,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:17:20,920 INFO L225 Difference]: With dead ends: 76 [2023-12-02 13:17:20,920 INFO L226 Difference]: Without dead ends: 73 [2023-12-02 13:17:20,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-02 13:17:20,922 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 58 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 12 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:17:20,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 121 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 165 Invalid, 6 Unknown, 0 Unchecked, 13.6s Time] [2023-12-02 13:17:20,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-02 13:17:20,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2023-12-02 13:17:20,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 56 states have (on average 1.1607142857142858) internal successors, (65), 58 states have internal predecessors, (65), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 13:17:20,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2023-12-02 13:17:20,937 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 42 [2023-12-02 13:17:20,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:17:20,938 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2023-12-02 13:17:20,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 13:17:20,938 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2023-12-02 13:17:20,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 13:17:20,939 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:17:20,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:17:20,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-02 13:17:21,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:17:21,145 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:17:21,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:17:21,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1598690699, now seen corresponding path program 1 times [2023-12-02 13:17:21,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:17:21,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142355731] [2023-12-02 13:17:21,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:21,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:17:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:17:21,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:17:21,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142355731] [2023-12-02 13:17:21,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142355731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:17:21,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:17:21,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:17:21,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615790717] [2023-12-02 13:17:21,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:17:21,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:17:21,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:17:21,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:17:21,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:17:21,447 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 13:17:23,462 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 [] [2023-12-02 13:17:25,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:17:25,210 INFO L93 Difference]: Finished difference Result 76 states and 85 transitions. [2023-12-02 13:17:25,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:17:25,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2023-12-02 13:17:25,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:17:25,211 INFO L225 Difference]: With dead ends: 76 [2023-12-02 13:17:25,211 INFO L226 Difference]: Without dead ends: 73 [2023-12-02 13:17:25,212 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 [2023-12-02 13:17:25,212 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 8 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2023-12-02 13:17:25,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 95 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2023-12-02 13:17:25,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-12-02 13:17:25,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2023-12-02 13:17:25,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 58 states have (on average 1.1724137931034482) internal successors, (68), 60 states have internal predecessors, (68), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-12-02 13:17:25,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 81 transitions. [2023-12-02 13:17:25,221 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 81 transitions. Word has length 41 [2023-12-02 13:17:25,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:17:25,221 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 81 transitions. [2023-12-02 13:17:25,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 13:17:25,222 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 81 transitions. [2023-12-02 13:17:25,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 13:17:25,222 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:17:25,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:17:25,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-12-02 13:17:25,222 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:17:25,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:17:25,223 INFO L85 PathProgramCache]: Analyzing trace with hash 2076965519, now seen corresponding path program 1 times [2023-12-02 13:17:25,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:17:25,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57269035] [2023-12-02 13:17:25,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:25,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:17:25,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:25,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:17:25,484 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:17:25,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57269035] [2023-12-02 13:17:25,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57269035] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:17:25,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:17:25,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 13:17:25,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724166919] [2023-12-02 13:17:25,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:17:25,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 13:17:25,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:17:25,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 13:17:25,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 13:17:25,486 INFO L87 Difference]: Start difference. First operand 71 states and 81 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:17:27,499 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 [] [2023-12-02 13:17:29,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:30,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:17:31,084 INFO L93 Difference]: Finished difference Result 121 states and 131 transitions. [2023-12-02 13:17:31,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 13:17:31,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2023-12-02 13:17:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:17:31,086 INFO L225 Difference]: With dead ends: 121 [2023-12-02 13:17:31,086 INFO L226 Difference]: Without dead ends: 90 [2023-12-02 13:17:31,086 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 [2023-12-02 13:17:31,087 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 13:17:31,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 83 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 13:17:31,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-02 13:17:31,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 75. [2023-12-02 13:17:31,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 61 states have (on average 1.1147540983606556) internal successors, (68), 63 states have internal predecessors, (68), 8 states have call successors, (8), 7 states have call predecessors, (8), 5 states have return successors, (6), 4 states have call predecessors, (6), 6 states have call successors, (6) [2023-12-02 13:17:31,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 82 transitions. [2023-12-02 13:17:31,100 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 82 transitions. Word has length 42 [2023-12-02 13:17:31,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:17:31,100 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 82 transitions. [2023-12-02 13:17:31,100 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2023-12-02 13:17:31,100 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 82 transitions. [2023-12-02 13:17:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 13:17:31,101 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:17:31,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:17:31,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-12-02 13:17:31,101 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:17:31,102 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:17:31,102 INFO L85 PathProgramCache]: Analyzing trace with hash -286160021, now seen corresponding path program 1 times [2023-12-02 13:17:31,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:17:31,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675916530] [2023-12-02 13:17:31,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:31,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:17:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:17:31,547 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:17:31,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675916530] [2023-12-02 13:17:31,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675916530] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:17:31,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:17:31,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-02 13:17:31,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48771900] [2023-12-02 13:17:31,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:17:31,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-02 13:17:31,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:17:31,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-02 13:17:31,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-02 13:17:31,549 INFO L87 Difference]: Start difference. First operand 75 states and 82 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 13:17:33,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:35,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:37,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:39,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:41,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:43,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:17:45,920 INFO L93 Difference]: Finished difference Result 96 states and 102 transitions. [2023-12-02 13:17:45,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-02 13:17:45,920 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2023-12-02 13:17:45,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:17:45,921 INFO L225 Difference]: With dead ends: 96 [2023-12-02 13:17:45,921 INFO L226 Difference]: Without dead ends: 66 [2023-12-02 13:17:45,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:17:45,921 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 16 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2023-12-02 13:17:45,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 147 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 6 Unknown, 0 Unchecked, 14.3s Time] [2023-12-02 13:17:45,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-12-02 13:17:45,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 60. [2023-12-02 13:17:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.08) internal successors, (54), 50 states have internal predecessors, (54), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:17:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 63 transitions. [2023-12-02 13:17:45,930 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 63 transitions. Word has length 46 [2023-12-02 13:17:45,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:17:45,931 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 63 transitions. [2023-12-02 13:17:45,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-12-02 13:17:45,931 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 63 transitions. [2023-12-02 13:17:45,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 13:17:45,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:17:45,932 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:17:45,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-12-02 13:17:45,932 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:17:45,932 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:17:45,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1078766859, now seen corresponding path program 1 times [2023-12-02 13:17:45,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:17:45,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387186731] [2023-12-02 13:17:45,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:17:45,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:17:46,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:17:46,873 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:17:46,873 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:17:46,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387186731] [2023-12-02 13:17:46,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387186731] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:17:46,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 13:17:46,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2023-12-02 13:17:46,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433304019] [2023-12-02 13:17:46,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:17:46,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-02 13:17:46,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:17:46,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-02 13:17:46,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2023-12-02 13:17:46,876 INFO L87 Difference]: Start difference. First operand 60 states and 63 transitions. Second operand has 11 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-02 13:17:48,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:50,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:52,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:54,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:56,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:17:58,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:18:01,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:18:02,386 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:18:05,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:18:06,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:18:06,174 INFO L93 Difference]: Finished difference Result 77 states and 80 transitions. [2023-12-02 13:18:06,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-02 13:18:06,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 56 [2023-12-02 13:18:06,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:18:06,175 INFO L225 Difference]: With dead ends: 77 [2023-12-02 13:18:06,175 INFO L226 Difference]: Without dead ends: 60 [2023-12-02 13:18:06,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=98, Invalid=408, Unknown=0, NotChecked=0, Total=506 [2023-12-02 13:18:06,176 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 78 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 27 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 316 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.1s IncrementalHoareTripleChecker+Time [2023-12-02 13:18:06,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 205 Invalid, 316 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 283 Invalid, 6 Unknown, 0 Unchecked, 19.1s Time] [2023-12-02 13:18:06,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-12-02 13:18:06,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-12-02 13:18:06,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 50 states have (on average 1.06) internal successors, (53), 50 states have internal predecessors, (53), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:18:06,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2023-12-02 13:18:06,187 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 56 [2023-12-02 13:18:06,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:18:06,187 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2023-12-02 13:18:06,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.7) internal successors, (47), 9 states have internal predecessors, (47), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-12-02 13:18:06,187 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2023-12-02 13:18:06,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 13:18:06,188 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:18:06,188 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:18:06,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2023-12-02 13:18:06,188 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:18:06,189 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:18:06,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1783848378, now seen corresponding path program 1 times [2023-12-02 13:18:06,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:18:06,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079344881] [2023-12-02 13:18:06,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:06,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:18:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:07,134 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:18:07,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079344881] [2023-12-02 13:18:07,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079344881] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:18:07,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494505379] [2023-12-02 13:18:07,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:18:07,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:18:07,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:18:07,137 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:18:07,138 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-02 13:18:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:18:08,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 1075 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 13:18:08,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:18:08,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:08,834 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:18:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 13:18:08,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494505379] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:18:08,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [43442554] [2023-12-02 13:18:08,919 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 13:18:08,919 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:18:08,923 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:18:08,928 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:18:08,929 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 13:18:25,434 INFO L180 IcfgInterpreter]: Interpretation finished [2023-12-02 13:18:27,452 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_#StackHeapBarrier| 1))) (and (<= .cse0 |c_ULTIMATE.start_main_~#u~0#1.base|) (= c_~compFptr~0.base 0) (<= .cse0 |c_ULTIMATE.start_main_~#devobj~0#1.base|) (= |c_ULTIMATE.start_main_~#irp~0#1.base| c_~pirp~0.base) (<= |c_ULTIMATE.start_main_~irp_choice~0#1| 2147483647) (exists ((|v_#length_67| (Array Int Int))) (and (= 2 (select |v_#length_67| 1)) (= (select |v_#length_67| 3) 12) (= (select |v_#length_67| 2) 18) (= (store (store (store (store (store (store (store (store |v_#length_67| |c_ULTIMATE.start_main_~#d~0#1.base| 168) |c_ULTIMATE.start_main_~#u~0#1.base| 8) |c_ULTIMATE.start_main_~#irp~0#1.base| 111) |c_ULTIMATE.start_main_~#devext~0#1.base| 55) |c_ULTIMATE.start_main_~#devobj~0#1.base| 175) |c_ULTIMATE.start_main_~#ext~0#1.base| 20) |c_ULTIMATE.start_main_~#hookkb~0#1.base| 24) |c_ULTIMATE.start_main_~#stack~0#1.base| 108) |c_#length|))) (= |c_ULTIMATE.start_main_~#devext~0#1.offset| 0) (= c_~_SLAM_alloc_dummy~0 0) (= |c_ULTIMATE.start_main_~#hookkb~0#1.offset| 0) (exists ((|v_#memory_$Pointer$.base_429| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_427| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_426| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_425| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet172#1_21| Int) (|v_#memory_$Pointer$.base_424| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_423| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_422| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet169#1_21| Int) (|v_#memory_$Pointer$.base_421| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_420| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_419| (Array Int (Array Int Int))) (|v_#memory_int_445| (Array Int (Array Int Int))) (|v_#memory_int_444| (Array Int (Array Int Int))) (|v_#memory_int_447| (Array Int (Array Int Int))) (|v_#memory_int_446| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_1096| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet167#1_21| Int) (|v_ULTIMATE.start_main_#t~nondet164#1_21| Int) (|v_#memory_$Pointer$.offset_430| (Array Int (Array Int Int))) (|v_#memory_int_438| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_423| (Array Int (Array Int Int))) (|v_#memory_int_437| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_424| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_425| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet166#1_21| Int) (|v_#memory_int_439| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_426| (Array Int (Array Int Int))) (|v_#memory_int_434| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_427| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_428| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet161#1_21| Int) (|v_#memory_$Pointer$.offset_429| (Array Int (Array Int Int))) (|v_#memory_int_436| (Array Int (Array Int Int))) (|v_#memory_int_435| (Array Int (Array Int Int))) (|v_ULTIMATE.start_DriverEntry_~i~0#1_16| Int) (|v_#memory_int_1130| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet170#1_21| Int) (|v_ULTIMATE.start_main_#t~nondet162#1_21| Int) (|v_#memory_int_441| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_1096| (Array Int (Array Int Int))) (|v_#memory_int_440| (Array Int (Array Int Int))) (|v_#memory_int_443| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_420| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_421| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_422| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet171#1_21| Int) (|v_#memory_$Pointer$.offset_419| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet165#1_21| Int) (|v_ULTIMATE.start_main_#t~nondet168#1_21| Int) (|v_ULTIMATE.start_main_#t~nondet163#1_21| Int) (|v_#memory_$Pointer$.base_430| (Array Int (Array Int Int)))) (let ((.cse11 (mod |v_ULTIMATE.start_DriverEntry_~i~0#1_16| 4294967296))) (let ((.cse37 (store |v_#memory_$Pointer$.base_426| |c_ULTIMATE.start_main_~#irp~0#1.base| (store (select |v_#memory_$Pointer$.base_426| |c_ULTIMATE.start_main_~#irp~0#1.base|) 96 |c_ULTIMATE.start_main_~#stack~0#1.base|))) (.cse40 (store |v_#memory_$Pointer$.offset_428| |c_ULTIMATE.start_main_~#irp~0#1.base| (store (select |v_#memory_$Pointer$.offset_428| |c_ULTIMATE.start_main_~#irp~0#1.base|) 96 36))) (.cse9 (+ 56 (* .cse11 4)))) (let ((.cse41 (store (select .cse40 |c_ULTIMATE.start_main_~#d~0#1.base|) .cse9 |#funAddr~KbFilter_DispatchPassThrough.offset|)) (.cse38 (store (select .cse37 |c_ULTIMATE.start_main_~#d~0#1.base|) .cse9 |#funAddr~KbFilter_DispatchPassThrough.base|))) (let ((.cse1 (select |v_#memory_$Pointer$.base_428| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse8 (select |v_#memory_$Pointer$.offset_430| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse6 (select |v_#memory_int_444| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse14 (select |v_#memory_$Pointer$.base_427| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse18 (select |v_#memory_int_447| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse13 (select |v_#memory_$Pointer$.base_430| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse4 (select |v_#memory_$Pointer$.base_419| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse15 (select |v_#memory_$Pointer$.base_420| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse20 (select |v_#memory_int_446| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse25 (select |v_#memory_int_441| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse2 (select |v_#memory_$Pointer$.base_425| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse3 (select |v_#memory_$Pointer$.base_423| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse31 (select |v_#memory_int_435| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse35 (select .cse38 24)) (.cse36 (+ (select .cse41 24) 4)) (.cse27 (select |v_#memory_$Pointer$.offset_426| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse42 (select |v_#memory_$Pointer$.offset_425| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse21 (select |v_#memory_$Pointer$.offset_424| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse22 (select |v_#memory_$Pointer$.offset_423| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse12 (select |v_#memory_$Pointer$.base_429| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse30 (select |v_#memory_$Pointer$.offset_429| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse16 (select |v_#memory_$Pointer$.base_424| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse28 (select |v_#memory_$Pointer$.base_421| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse19 (select |v_#memory_$Pointer$.base_422| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse10 (select |v_#memory_int_439| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse23 (select |v_#memory_int_438| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse32 (select |v_#memory_int_1130| 1)) (.cse26 (select |v_#memory_$Pointer$.offset_427| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse43 (select |v_#memory_$Pointer$.offset_422| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse7 (select |v_#memory_$Pointer$.offset_421| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse24 (select |v_#memory_int_437| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse33 (select |v_#memory_int_436| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse17 (select |v_#memory_$Pointer$.offset_419| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse29 (select |v_#memory_$Pointer$.offset_420| |c_ULTIMATE.start_main_~#stack~0#1.base|))) (and (= |v_#memory_$Pointer$.base_425| (store |v_#memory_$Pointer$.base_428| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store .cse1 16 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 52 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 88 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 8 (select .cse2 8)))) (= (store |v_#memory_$Pointer$.base_423| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse3 80 (select .cse4 80))) |v_#memory_$Pointer$.base_419|) (= |v_#memory_int_434| (let ((.cse5 (store |v_#memory_int_444| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store (store (store .cse6 8 |v_ULTIMATE.start_main_#t~nondet167#1_21|) 44 |v_ULTIMATE.start_main_#t~nondet168#1_21|) 80 |v_ULTIMATE.start_main_#t~nondet169#1_21|) 12 |v_ULTIMATE.start_main_#t~nondet170#1_21|) 48 |v_ULTIMATE.start_main_#t~nondet171#1_21|) 84 |v_ULTIMATE.start_main_#t~nondet172#1_21|)))) (store .cse5 |c_ULTIMATE.start_main_~#irp~0#1.base| (store (select .cse5 |c_ULTIMATE.start_main_~#irp~0#1.base|) 96 (select (select |v_#memory_int_434| |c_ULTIMATE.start_main_~#irp~0#1.base|) 96))))) (= (store |v_#memory_$Pointer$.offset_421| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse7 44 (select .cse8 44))) |v_#memory_$Pointer$.offset_430|) (= (store |v_#memory_int_434| |c_ULTIMATE.start_main_~#d~0#1.base| (store (select |v_#memory_int_434| |c_ULTIMATE.start_main_~#d~0#1.base|) .cse9 (select .cse10 .cse9))) |v_#memory_int_439|) (<= .cse11 27) (= (store |v_#memory_$Pointer$.base_429| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse12 36 (select .cse13 36))) |v_#memory_$Pointer$.base_430|) (= (store |v_#memory_$Pointer$.base_427| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse14 73 (select .cse1 73))) |v_#memory_$Pointer$.base_428|) (= (store |v_#memory_$Pointer$.base_420| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse15 48 (select .cse16 48))) |v_#memory_$Pointer$.base_424|) (= (store |v_#memory_$Pointer$.offset_430| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse8 80 (select .cse17 80))) |v_#memory_$Pointer$.offset_419|) (= (store |v_#memory_int_447| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse18 88 (select .cse6 88))) |v_#memory_int_444|) (= (store |v_#memory_$Pointer$.base_422| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse19 37 (select .cse14 37))) |v_#memory_$Pointer$.base_427|) (= |v_#memory_int_447| (store |v_#memory_int_446| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse20 52 (select .cse18 52)))) (= |v_#memory_$Pointer$.offset_423| (store |v_#memory_$Pointer$.offset_424| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse21 37 (select .cse22 37)))) (= (store |v_#memory_int_438| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse23 64 (select .cse24 64))) |v_#memory_int_437|) (= (store |v_#memory_int_441| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse25 52 (select (select |v_#memory_int_440| |c_ULTIMATE.start_main_~#d~0#1.base|) 52))) |v_#memory_int_440|) (= |v_#memory_$Pointer$.offset_426| (store |v_#memory_$Pointer$.offset_427| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse26 36 (select .cse27 36)))) (= (store |v_#memory_$Pointer$.base_430| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse13 72 (select .cse28 72))) |v_#memory_$Pointer$.base_421|) (<= 0 (+ |v_ULTIMATE.start_DriverEntry_~i~0#1_16| 2147483648)) (= (store |v_#memory_$Pointer$.base_419| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse4 12 (select .cse15 12))) |v_#memory_$Pointer$.base_420|) (= (store |v_#memory_int_445| |c_ULTIMATE.start_main_~#d~0#1.base| (store (select |v_#memory_int_445| |c_ULTIMATE.start_main_~#d~0#1.base|) 24 (select (select |v_#memory_int_443| |c_ULTIMATE.start_main_~#d~0#1.base|) 24))) |v_#memory_int_443|) (= (store |v_#memory_int_443| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store (store (store (store (select |v_#memory_int_443| |c_ULTIMATE.start_main_~#stack~0#1.base|) 0 |v_ULTIMATE.start_main_#t~nondet161#1_21|) 36 |v_ULTIMATE.start_main_#t~nondet162#1_21|) 72 |v_ULTIMATE.start_main_#t~nondet163#1_21|) 1 |v_ULTIMATE.start_main_#t~nondet164#1_21|) 37 |v_ULTIMATE.start_main_#t~nondet165#1_21|) 73 |v_ULTIMATE.start_main_#t~nondet166#1_21|) 16 (select .cse20 16))) |v_#memory_int_446|) (= (store |v_#memory_$Pointer$.offset_420| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse29 48 (select .cse30 48))) |v_#memory_$Pointer$.offset_429|) (= (store |v_#memory_int_435| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse31 116 (select .cse25 116))) |v_#memory_int_441|) (= (select .cse32 0) 48) (= |v_#memory_$Pointer$.base_423| (store |v_#memory_$Pointer$.base_425| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse2 44 (select .cse3 44)))) (= (store |v_#memory_int_1130| |c_ULTIMATE.start_main_~#devobj~0#1.base| (store (select |v_#memory_int_1130| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40 (select (select |v_#memory_int_445| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40))) |v_#memory_int_445|) (= (store |v_#memory_int_436| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse33 144 (select .cse31 144))) |v_#memory_int_435|) (= (let ((.cse34 (store .cse37 |c_ULTIMATE.start_main_~#d~0#1.base| (store (store (store (store (store (store .cse38 56 |#funAddr~KbFilter_CreateClose.base|) 64 |#funAddr~KbFilter_CreateClose.base|) 164 |#funAddr~KbFilter_PnP.base|) 144 |#funAddr~KbFilter_Power.base|) 116 |#funAddr~KbFilter_InternIoCtl.base|) 52 |#funAddr~KbFilter_Unload.base|)))) (store .cse34 .cse35 (store (select .cse34 .cse35) .cse36 |#funAddr~KbFilter_AddDevice.base|))) |c_#memory_$Pointer$.base|) (<= |v_ULTIMATE.start_DriverEntry_~i~0#1_16| 2147483647) (= (let ((.cse39 (store .cse40 |c_ULTIMATE.start_main_~#d~0#1.base| (store (store (store (store (store (store .cse41 56 |#funAddr~KbFilter_CreateClose.offset|) 64 |#funAddr~KbFilter_CreateClose.offset|) 164 |#funAddr~KbFilter_PnP.offset|) 144 |#funAddr~KbFilter_Power.offset|) 116 |#funAddr~KbFilter_InternIoCtl.offset|) 52 |#funAddr~KbFilter_Unload.offset|)))) (store .cse39 .cse35 (store (select .cse39 .cse35) .cse36 |#funAddr~KbFilter_AddDevice.offset|))) |c_#memory_$Pointer$.offset|) (= |c_#memory_int| (store |v_#memory_int_440| .cse35 (store (select |v_#memory_int_440| .cse35) .cse36 (select (select |c_#memory_int| .cse35) .cse36)))) (= (store |v_#memory_$Pointer$.offset_426| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse27 72 (select .cse42 72))) |v_#memory_$Pointer$.offset_425|) (= (store |v_#memory_$Pointer$.offset_425| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse42 1 (select .cse21 1))) |v_#memory_$Pointer$.offset_424|) (= (store |v_#memory_$Pointer$.offset_423| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse22 73 (select .cse43 73))) |v_#memory_$Pointer$.offset_422|) (= |v_#memory_$Pointer$.base_429| (let ((.cse44 (let ((.cse45 (store |v_#memory_$Pointer$.base_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base| (store (select |v_#memory_$Pointer$.base_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40 |c_ULTIMATE.start_main_~#devext~0#1.base|)))) (store .cse45 |c_ULTIMATE.start_main_~#d~0#1.base| (store (select .cse45 |c_ULTIMATE.start_main_~#d~0#1.base|) 24 |c_ULTIMATE.start_main_~#ext~0#1.base|))))) (store .cse44 |c_ULTIMATE.start_main_~#stack~0#1.base| (store (select .cse44 |c_ULTIMATE.start_main_~#stack~0#1.base|) 0 (select .cse12 0))))) (= (store |v_#memory_$Pointer$.offset_429| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse30 84 (select (select |v_#memory_$Pointer$.offset_428| |c_ULTIMATE.start_main_~#stack~0#1.base|) 84))) |v_#memory_$Pointer$.offset_428|) (= (store |v_#memory_$Pointer$.base_424| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse16 84 (select (select |v_#memory_$Pointer$.base_426| |c_ULTIMATE.start_main_~#stack~0#1.base|) 84))) |v_#memory_$Pointer$.base_426|) (= (store |v_#memory_$Pointer$.base_421| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse28 1 (select .cse19 1))) |v_#memory_$Pointer$.base_422|) (= (store |v_#memory_int_439| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse10 56 (select .cse23 56))) |v_#memory_int_438|) (= (select .cse32 1) 0) (= (let ((.cse46 (let ((.cse47 (store |v_#memory_$Pointer$.offset_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base| (store (select |v_#memory_$Pointer$.offset_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40 0)))) (store .cse47 |c_ULTIMATE.start_main_~#d~0#1.base| (store (select .cse47 |c_ULTIMATE.start_main_~#d~0#1.base|) 24 0))))) (store .cse46 |c_ULTIMATE.start_main_~#stack~0#1.base| (store (select .cse46 |c_ULTIMATE.start_main_~#stack~0#1.base|) 0 (select .cse26 0)))) |v_#memory_$Pointer$.offset_427|) (= (store |v_#memory_$Pointer$.offset_422| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store .cse43 16 0) 52 0) 88 0) 8 (select .cse7 8))) |v_#memory_$Pointer$.offset_421|) (= |v_#memory_int_436| (store |v_#memory_int_437| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse24 164 (select .cse33 164)))) (= (store |v_#memory_$Pointer$.offset_419| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse17 12 (select .cse29 12))) |v_#memory_$Pointer$.offset_420|))))))) (not (= |c_ULTIMATE.start_main_~#hookkb~0#1.base| 0)) (<= .cse0 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) (= |c_ULTIMATE.start_main_~#u~0#1.offset| 0) (= c_~setEventCalled~0 0) (not (= |c_ULTIMATE.start_main_~#devobj~0#1.base| 0)) (= c_~lowerDriverReturn~0 0) (= |c_ULTIMATE.start_main_~#ext~0#1.offset| 0) (exists ((|v_#valid_124| (Array Int Int))) (let ((.cse53 (store |v_#valid_124| |c_ULTIMATE.start_main_~#d~0#1.base| 1))) (let ((.cse52 (store .cse53 |c_ULTIMATE.start_main_~#u~0#1.base| 1))) (let ((.cse49 (store .cse52 |c_ULTIMATE.start_main_~#irp~0#1.base| 1))) (let ((.cse50 (store .cse49 |c_ULTIMATE.start_main_~#devext~0#1.base| 1))) (let ((.cse54 (store .cse50 |c_ULTIMATE.start_main_~#devobj~0#1.base| 1))) (let ((.cse51 (store .cse54 |c_ULTIMATE.start_main_~#ext~0#1.base| 1))) (let ((.cse48 (store .cse51 |c_ULTIMATE.start_main_~#hookkb~0#1.base| 1))) (and (= (select .cse48 |c_ULTIMATE.start_main_~#stack~0#1.base|) 0) (= (select .cse49 |c_ULTIMATE.start_main_~#devext~0#1.base|) 0) (= 0 (select |v_#valid_124| 0)) (= (select .cse50 |c_ULTIMATE.start_main_~#devobj~0#1.base|) 0) (= (select |v_#valid_124| 2) 1) (= (select |v_#valid_124| 3) 1) (= |c_#valid| (store .cse48 |c_ULTIMATE.start_main_~#stack~0#1.base| 1)) (= (select .cse51 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 0) (= (select |v_#valid_124| 1) 1) (= (select .cse52 |c_ULTIMATE.start_main_~#irp~0#1.base|) 0) (= (select |v_#valid_124| |c_ULTIMATE.start_main_~#d~0#1.base|) 0) (= (select .cse53 |c_ULTIMATE.start_main_~#u~0#1.base|) 0) (= (select .cse54 |c_ULTIMATE.start_main_~#ext~0#1.base|) 0)))))))))) (<= 1 |c_#StackHeapBarrier|) (= c_~compFptr~0.offset 0) (= c_~customIrp~0 0) (= |c_ULTIMATE.start_main_~#irp~0#1.offset| 0) (<= 0 (+ |c_ULTIMATE.start_main_~__BLAST_NONDET~0#1| 2147483648)) (<= .cse0 |c_ULTIMATE.start_main_~#devext~0#1.base|) (= c_~SKIP2~0 4) (not (= |c_ULTIMATE.start_main_~#irp~0#1.base| 0)) (<= .cse0 |c_ULTIMATE.start_main_~#stack~0#1.base|) (= c_~UNLOADED~0 0) (= 5 c_~MPR1~0) (= c_~pirp~0.offset 0) (<= 0 (+ |c_ULTIMATE.start_main_~we_should_unload~0#1| 2147483648)) (<= |c_ULTIMATE.start_main_~__BLAST_NONDET~0#1| 2147483647) (= c_~s~0 0) (= c_~pended~0 0) (<= .cse0 |c_ULTIMATE.start_main_~#d~0#1.base|) (not (= |c_ULTIMATE.start_main_~#u~0#1.base| 0)) (<= .cse0 |c_ULTIMATE.start_main_~#irp~0#1.base|) (<= .cse0 |c_ULTIMATE.start_main_~#ext~0#1.base|) (= |c_ULTIMATE.start_DriverEntry_#res#1| 0) (not (= |c_ULTIMATE.start_main_~#d~0#1.base| 0)) (= c_~NP~0 1) (= 7 c_~IPC~0) (= 3 c_~SKIP1~0) (= |c_ULTIMATE.start_main_~#d~0#1.offset| 0) (= c_~MPR3~0 6) (= 0 |c_ULTIMATE.start_main_~status~5#1|) (<= |c_ULTIMATE.start_main_~we_should_unload~0#1| 2147483647) (= c_~myStatus~0 0) (not (= |c_ULTIMATE.start_main_~#stack~0#1.base| 0)) (<= 0 (+ |c_ULTIMATE.start_main_~irp_choice~0#1| 2147483648)) (= |c_ULTIMATE.start_main_~#devobj~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#ext~0#1.base| 0)) (= c_~compRegistered~0 0) (not (= |c_ULTIMATE.start_main_~#devext~0#1.base| 0)) (= |c_ULTIMATE.start_main_~#stack~0#1.offset| 0) (= 2 c_~DC~0))) is different from false [2023-12-02 13:18:29,494 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_#StackHeapBarrier| 1))) (and (<= .cse0 |c_ULTIMATE.start_main_~#u~0#1.base|) (= c_~compFptr~0.base 0) (<= .cse0 |c_ULTIMATE.start_main_~#devobj~0#1.base|) (= |c_ULTIMATE.start_main_~#irp~0#1.base| c_~pirp~0.base) (= |c_ULTIMATE.start_KbFilter_AddDevice_~status~0#1| |c_ULTIMATE.start_IoCreateDevice_#res#1|) (<= |c_ULTIMATE.start_main_~irp_choice~0#1| 2147483647) (exists ((|v_#memory_$Pointer$.base_429| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_428| (Array Int (Array Int Int))) (|v_#valid_124| (Array Int Int)) (|v_#memory_$Pointer$.base_427| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_426| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_425| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet172#1_21| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.base_19| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.base_18| Int) (|v_#length_67| (Array Int Int)) (|v_#memory_$Pointer$.base_424| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_423| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_422| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_421| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet169#1_21| Int) (|v_#memory_$Pointer$.base_420| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_463| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_461| (Array Int (Array Int Int))) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.base_19| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.base_18| Int) (|v_#memory_$Pointer$.base_419| (Array Int (Array Int Int))) (|v_#memory_int_445| (Array Int (Array Int Int))) (|v_#memory_int_444| (Array Int (Array Int Int))) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.offset_18| Int) (|v_#memory_int_447| (Array Int (Array Int Int))) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.offset_19| Int) (|v_#memory_int_446| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_1096| (Array Int (Array Int Int))) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.offset_18| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.offset_19| Int) (|v_ULTIMATE.start_main_#t~nondet167#1_21| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_29| Int) (|v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.offset_19| Int) (|v_ULTIMATE.start_main_#t~nondet164#1_21| Int) (|v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.offset_18| Int) (|v_#memory_$Pointer$.offset_430| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_423| (Array Int (Array Int Int))) (|v_#memory_int_438| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_424| (Array Int (Array Int Int))) (|v_#memory_int_437| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet166#1_21| Int) (|v_#memory_$Pointer$.offset_425| (Array Int (Array Int Int))) (|v_#memory_int_439| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_426| (Array Int (Array Int Int))) (|v_#memory_int_434| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_427| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet161#1_21| Int) (|v_#memory_$Pointer$.offset_428| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_429| (Array Int (Array Int Int))) (|v_#memory_int_436| (Array Int (Array Int Int))) (|v_#memory_int_435| (Array Int (Array Int Int))) (|v_#memory_int_1131| (Array Int (Array Int Int))) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_28| Int) (|v_ULTIMATE.start_DriverEntry_~i~0#1_16| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_27| Int) (|v_#memory_int_1130| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet170#1_21| Int) (|v_ULTIMATE.start_main_#t~nondet162#1_21| Int) (|v_ULTIMATE.start_IoCreateDevice_~__BLAST_NONDET~5#1_17| Int) (|v_#memory_int_441| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.base_1096| (Array Int (Array Int Int))) (|v_#memory_int_440| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_461| (Array Int (Array Int Int))) (|v_#memory_int_443| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_463| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_420| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_421| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_422| (Array Int (Array Int Int))) (|v_#memory_int_504| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~nondet171#1_21| Int) (|v_#memory_int_505| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_419| (Array Int (Array Int Int))) (|v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| Int) (|v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_19| Int) (|v_ULTIMATE.start_main_#t~nondet165#1_21| Int) (|v_ULTIMATE.start_main_#t~nondet168#1_21| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.offset_19| Int) (|v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.offset_18| Int) (|v_ULTIMATE.start_main_#t~nondet163#1_21| Int) (|v_#memory_$Pointer$.base_430| (Array Int (Array Int Int)))) (let ((.cse66 (store |v_#valid_124| |c_ULTIMATE.start_main_~#d~0#1.base| 1))) (let ((.cse65 (store .cse66 |c_ULTIMATE.start_main_~#u~0#1.base| 1))) (let ((.cse28 (store .cse65 |c_ULTIMATE.start_main_~#irp~0#1.base| 1))) (let ((.cse47 (store .cse28 |c_ULTIMATE.start_main_~#devext~0#1.base| 1))) (let ((.cse67 (store .cse47 |c_ULTIMATE.start_main_~#devobj~0#1.base| 1)) (.cse18 (mod |v_ULTIMATE.start_DriverEntry_~i~0#1_16| 4294967296))) (let ((.cse54 (store |v_#memory_$Pointer$.base_426| |c_ULTIMATE.start_main_~#irp~0#1.base| (store (select |v_#memory_$Pointer$.base_426| |c_ULTIMATE.start_main_~#irp~0#1.base|) 96 |c_ULTIMATE.start_main_~#stack~0#1.base|))) (.cse43 (store |v_#memory_$Pointer$.offset_428| |c_ULTIMATE.start_main_~#irp~0#1.base| (store (select |v_#memory_$Pointer$.offset_428| |c_ULTIMATE.start_main_~#irp~0#1.base|) 96 36))) (.cse16 (+ 56 (* .cse18 4))) (.cse59 (store .cse67 |c_ULTIMATE.start_main_~#ext~0#1.base| 1))) (let ((.cse27 (store .cse59 |c_ULTIMATE.start_main_~#hookkb~0#1.base| 1)) (.cse44 (store (select .cse43 |c_ULTIMATE.start_main_~#d~0#1.base|) .cse16 |#funAddr~KbFilter_DispatchPassThrough.offset|)) (.cse55 (store (select .cse54 |c_ULTIMATE.start_main_~#d~0#1.base|) .cse16 |#funAddr~KbFilter_DispatchPassThrough.base|))) (let ((.cse1 (select |v_#memory_$Pointer$.base_428| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse15 (select |v_#memory_$Pointer$.offset_430| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse13 (select |v_#memory_int_444| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse21 (select |v_#memory_$Pointer$.base_427| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse25 (select |v_#memory_int_447| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse20 (select |v_#memory_$Pointer$.base_430| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse11 (select |v_#memory_$Pointer$.base_419| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse22 (select |v_#memory_$Pointer$.base_420| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse31 (select |v_#memory_int_446| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse36 (select |v_#memory_int_441| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse2 (select |v_#memory_$Pointer$.base_425| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse10 (select |v_#memory_$Pointer$.base_423| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse48 (select |v_#memory_int_435| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse29 (select .cse55 24)) (.cse30 (+ (select .cse44 24) 4)) (.cse41 (select |v_#memory_$Pointer$.offset_463| c_~pirp~0.base)) (.cse52 (select |v_#memory_$Pointer$.base_463| c_~pirp~0.base)) (.cse38 (select |v_#memory_$Pointer$.offset_426| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse58 (select |v_#memory_$Pointer$.offset_425| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse32 (select |v_#memory_$Pointer$.offset_424| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse33 (select |v_#memory_$Pointer$.offset_423| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse19 (select |v_#memory_$Pointer$.base_429| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse46 (select |v_#memory_$Pointer$.offset_429| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse23 (select |v_#memory_$Pointer$.base_424| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse39 (select |v_#memory_$Pointer$.base_421| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse26 (select |v_#memory_$Pointer$.base_422| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse17 (select |v_#memory_int_439| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse34 (select |v_#memory_int_438| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse49 (select |v_#memory_int_1130| 1)) (.cse37 (select |v_#memory_$Pointer$.offset_427| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse60 (select |v_#memory_$Pointer$.offset_422| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse14 (select |v_#memory_$Pointer$.offset_421| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse9 (store .cse27 |c_ULTIMATE.start_main_~#stack~0#1.base| 1)) (.cse35 (select |v_#memory_int_437| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse50 (select |v_#memory_int_436| |c_ULTIMATE.start_main_~#d~0#1.base|)) (.cse24 (select |v_#memory_$Pointer$.offset_419| |c_ULTIMATE.start_main_~#stack~0#1.base|)) (.cse45 (select |v_#memory_$Pointer$.offset_420| |c_ULTIMATE.start_main_~#stack~0#1.base|))) (and (= |v_#memory_$Pointer$.base_425| (store |v_#memory_$Pointer$.base_428| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store .cse1 16 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 52 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 88 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 8 (select .cse2 8)))) (let ((.cse7 (store .cse9 |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base| 1)) (.cse3 (store (store (store (store (store (store (store (store (store |v_#length_67| |c_ULTIMATE.start_main_~#d~0#1.base| 168) |c_ULTIMATE.start_main_~#u~0#1.base| 8) |c_ULTIMATE.start_main_~#irp~0#1.base| 111) |c_ULTIMATE.start_main_~#devext~0#1.base| 55) |c_ULTIMATE.start_main_~#devobj~0#1.base| 175) |c_ULTIMATE.start_main_~#ext~0#1.base| 20) |c_ULTIMATE.start_main_~#hookkb~0#1.base| 24) |c_ULTIMATE.start_main_~#stack~0#1.base| 108) |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base| 4)) (.cse6 (= |v_ULTIMATE.start_IoCreateDevice_~__BLAST_NONDET~5#1_17| 0))) (or (let ((.cse5 (store .cse7 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| 1))) (and (= (store |v_#memory_int_505| |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| (store (select |v_#memory_int_505| |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18|) 40 (select (select |c_#memory_int| |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18|) 40))) |c_#memory_int|) (= (store (store .cse3 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| 175) |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_27| 55) |c_#length|) (= |c_#memory_$Pointer$.offset| (let ((.cse4 (store |v_#memory_$Pointer$.offset_461| |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base| (store (select |v_#memory_$Pointer$.offset_461| |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base|) 0 0)))) (store .cse4 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| (store (select .cse4 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18|) 40 0)))) (not (= |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_27| 0)) (= (select .cse5 |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_27|) 0) (<= (+ |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| 1) |c_#StackHeapBarrier|) .cse6 (not (= |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| 0)) (= (select .cse7 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18|) 0) (= |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.offset_19| 0) (= |c_#valid| (store .cse5 |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_27| 1)) (= (let ((.cse8 (store |v_#memory_$Pointer$.base_461| |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base| (store (select |v_#memory_$Pointer$.base_461| |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base|) 0 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18|)))) (store .cse8 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18| (store (select .cse8 |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18|) 40 |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_27|))) |c_#memory_$Pointer$.base|) (= (store |v_#memory_int_504| |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base| (store (select |v_#memory_int_504| |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base|) 0 (select (select |v_#memory_int_505| |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base|) 0))) |v_#memory_int_505|) (<= (+ |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_27| 1) |c_#StackHeapBarrier|) (= |c_ULTIMATE.start_IoCreateDevice_#res#1| 0))) (and (= |c_#memory_$Pointer$.base| |v_#memory_$Pointer$.base_461|) (= |v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.base_19| |v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.base_18|) (= |c_#valid| .cse7) (= |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.offset_19| |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.offset_18|) (= |v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.base_19| |v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.base_18|) (= |v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.offset_19| |v_ULTIMATE.start_IoCreateDevice_#t~mem191#1.offset_18|) (= .cse3 |c_#length|) (= |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.offset_19| |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.offset_18|) (= |c_#memory_$Pointer$.offset| |v_#memory_$Pointer$.offset_461|) (= 0 (+ 1073741823 |c_ULTIMATE.start_IoCreateDevice_#res#1|)) (= |v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.offset_19| |v_ULTIMATE.start_IoCreateDevice_#t~malloc190#1.offset_18|) (= |c_#memory_int| |v_#memory_int_504|) (= |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_19| |v_ULTIMATE.start_IoCreateDevice_~tmp~8#1.base_18|) (not .cse6) (= |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_29| |v_ULTIMATE.start_IoCreateDevice_#t~malloc192#1.base_28|)))) (= (store |v_#memory_$Pointer$.base_423| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse10 80 (select .cse11 80))) |v_#memory_$Pointer$.base_419|) (= |v_#memory_int_434| (let ((.cse12 (store |v_#memory_int_444| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store (store (store .cse13 8 |v_ULTIMATE.start_main_#t~nondet167#1_21|) 44 |v_ULTIMATE.start_main_#t~nondet168#1_21|) 80 |v_ULTIMATE.start_main_#t~nondet169#1_21|) 12 |v_ULTIMATE.start_main_#t~nondet170#1_21|) 48 |v_ULTIMATE.start_main_#t~nondet171#1_21|) 84 |v_ULTIMATE.start_main_#t~nondet172#1_21|)))) (store .cse12 |c_ULTIMATE.start_main_~#irp~0#1.base| (store (select .cse12 |c_ULTIMATE.start_main_~#irp~0#1.base|) 96 (select (select |v_#memory_int_434| |c_ULTIMATE.start_main_~#irp~0#1.base|) 96))))) (= (store |v_#memory_$Pointer$.offset_421| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse14 44 (select .cse15 44))) |v_#memory_$Pointer$.offset_430|) (= 2 (select |v_#length_67| 1)) (= (store |v_#memory_int_434| |c_ULTIMATE.start_main_~#d~0#1.base| (store (select |v_#memory_int_434| |c_ULTIMATE.start_main_~#d~0#1.base|) .cse16 (select .cse17 .cse16))) |v_#memory_int_439|) (<= 0 (+ |v_ULTIMATE.start_IoCreateDevice_~__BLAST_NONDET~5#1_17| 2147483648)) (= (select |v_#length_67| 3) 12) (<= .cse18 27) (= (store |v_#memory_$Pointer$.base_429| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse19 36 (select .cse20 36))) |v_#memory_$Pointer$.base_430|) (= (store |v_#memory_$Pointer$.base_427| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse21 73 (select .cse1 73))) |v_#memory_$Pointer$.base_428|) (= (store |v_#memory_$Pointer$.base_420| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse22 48 (select .cse23 48))) |v_#memory_$Pointer$.base_424|) (= (store |v_#memory_$Pointer$.offset_430| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse15 80 (select .cse24 80))) |v_#memory_$Pointer$.offset_419|) (= (store |v_#memory_int_447| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse25 88 (select .cse13 88))) |v_#memory_int_444|) (= (store |v_#memory_$Pointer$.base_422| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse26 37 (select .cse21 37))) |v_#memory_$Pointer$.base_427|) (= (select .cse27 |c_ULTIMATE.start_main_~#stack~0#1.base|) 0) (= (select .cse28 |c_ULTIMATE.start_main_~#devext~0#1.base|) 0) (= (store |v_#memory_int_440| .cse29 (store (select |v_#memory_int_440| .cse29) .cse30 (select (select |v_#memory_int_1131| .cse29) .cse30))) |v_#memory_int_1131|) (= 0 (select |v_#valid_124| 0)) (= |v_#memory_int_447| (store |v_#memory_int_446| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse31 52 (select .cse25 52)))) (= |v_#memory_$Pointer$.offset_423| (store |v_#memory_$Pointer$.offset_424| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse32 37 (select .cse33 37)))) (<= |v_ULTIMATE.start_IoCreateDevice_~__BLAST_NONDET~5#1_17| 2147483647) (= (store |v_#memory_int_438| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse34 64 (select .cse35 64))) |v_#memory_int_437|) (= (store |v_#memory_int_441| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse36 52 (select (select |v_#memory_int_440| |c_ULTIMATE.start_main_~#d~0#1.base|) 52))) |v_#memory_int_440|) (= |v_#memory_$Pointer$.offset_426| (store |v_#memory_$Pointer$.offset_427| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse37 36 (select .cse38 36)))) (= (select |v_#length_67| 2) 18) (= (store |v_#memory_$Pointer$.base_430| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse20 72 (select .cse39 72))) |v_#memory_$Pointer$.base_421|) (<= 0 (+ |v_ULTIMATE.start_DriverEntry_~i~0#1_16| 2147483648)) (= (store |v_#memory_$Pointer$.base_419| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse11 12 (select .cse22 12))) |v_#memory_$Pointer$.base_420|) (= (store |v_#memory_int_445| |c_ULTIMATE.start_main_~#d~0#1.base| (store (select |v_#memory_int_445| |c_ULTIMATE.start_main_~#d~0#1.base|) 24 (select (select |v_#memory_int_443| |c_ULTIMATE.start_main_~#d~0#1.base|) 24))) |v_#memory_int_443|) (= (store |v_#memory_int_443| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store (store (store (store (select |v_#memory_int_443| |c_ULTIMATE.start_main_~#stack~0#1.base|) 0 |v_ULTIMATE.start_main_#t~nondet161#1_21|) 36 |v_ULTIMATE.start_main_#t~nondet162#1_21|) 72 |v_ULTIMATE.start_main_#t~nondet163#1_21|) 1 |v_ULTIMATE.start_main_#t~nondet164#1_21|) 37 |v_ULTIMATE.start_main_#t~nondet165#1_21|) 73 |v_ULTIMATE.start_main_#t~nondet166#1_21|) 16 (select .cse31 16))) |v_#memory_int_446|) (= |v_#memory_$Pointer$.offset_463| (let ((.cse40 (let ((.cse42 (store .cse43 |c_ULTIMATE.start_main_~#d~0#1.base| (store (store (store (store (store (store .cse44 56 |#funAddr~KbFilter_CreateClose.offset|) 64 |#funAddr~KbFilter_CreateClose.offset|) 164 |#funAddr~KbFilter_PnP.offset|) 144 |#funAddr~KbFilter_Power.offset|) 116 |#funAddr~KbFilter_InternIoCtl.offset|) 52 |#funAddr~KbFilter_Unload.offset|)))) (store .cse42 .cse29 (store (select .cse42 .cse29) .cse30 |#funAddr~KbFilter_AddDevice.offset|))))) (store .cse40 c_~pirp~0.base (store (select .cse40 c_~pirp~0.base) 24 (select .cse41 24))))) (= (store |v_#memory_$Pointer$.offset_420| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse45 48 (select .cse46 48))) |v_#memory_$Pointer$.offset_429|) (= (select .cse47 |c_ULTIMATE.start_main_~#devobj~0#1.base|) 0) (= (store |v_#memory_int_435| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse48 116 (select .cse36 116))) |v_#memory_int_441|) (= (select |v_#valid_124| 2) 1) (= (select .cse49 0) 48) (= |v_#memory_$Pointer$.base_423| (store |v_#memory_$Pointer$.base_425| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse2 44 (select .cse10 44)))) (= (store |v_#memory_int_1130| |c_ULTIMATE.start_main_~#devobj~0#1.base| (store (select |v_#memory_int_1130| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40 (select (select |v_#memory_int_445| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40))) |v_#memory_int_445|) (= (store |v_#memory_int_436| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse50 144 (select .cse48 144))) |v_#memory_int_435|) (= (select |v_#valid_124| 3) 1) (<= |v_ULTIMATE.start_DriverEntry_~i~0#1_16| 2147483647) (= (let ((.cse51 (let ((.cse53 (store .cse54 |c_ULTIMATE.start_main_~#d~0#1.base| (store (store (store (store (store (store .cse55 56 |#funAddr~KbFilter_CreateClose.base|) 64 |#funAddr~KbFilter_CreateClose.base|) 164 |#funAddr~KbFilter_PnP.base|) 144 |#funAddr~KbFilter_Power.base|) 116 |#funAddr~KbFilter_InternIoCtl.base|) 52 |#funAddr~KbFilter_Unload.base|)))) (store .cse53 .cse29 (store (select .cse53 .cse29) .cse30 |#funAddr~KbFilter_AddDevice.base|))))) (store .cse51 c_~pirp~0.base (store (select .cse51 c_~pirp~0.base) 24 (select .cse52 24)))) |v_#memory_$Pointer$.base_463|) (let ((.cse56 (= |c_ULTIMATE.start_main_~irp_choice~0#1| 0)) (.cse57 (select |v_#memory_int_1131| c_~pirp~0.base))) (or (and (not .cse56) (= (store |v_#memory_int_1131| c_~pirp~0.base (store .cse57 24 0)) |v_#memory_int_504|) (= |v_#memory_$Pointer$.base_463| |v_#memory_$Pointer$.base_461|) (= |v_#memory_$Pointer$.offset_461| |v_#memory_$Pointer$.offset_463|) (= c_~myStatus~0 0)) (and .cse56 (= (store |v_#memory_$Pointer$.offset_463| c_~pirp~0.base (store .cse41 24 (select (select |v_#memory_$Pointer$.offset_461| c_~pirp~0.base) 24))) |v_#memory_$Pointer$.offset_461|) (= (+ 1073741637 c_~myStatus~0) 0) (= (store |v_#memory_int_1131| c_~pirp~0.base (store .cse57 24 (- 1073741637))) |v_#memory_int_504|) (= (store |v_#memory_$Pointer$.base_463| c_~pirp~0.base (store .cse52 24 (select (select |v_#memory_$Pointer$.base_461| c_~pirp~0.base) 24))) |v_#memory_$Pointer$.base_461|)))) (= (store |v_#memory_$Pointer$.offset_426| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse38 72 (select .cse58 72))) |v_#memory_$Pointer$.offset_425|) (= (select .cse59 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) 0) (= (store |v_#memory_$Pointer$.offset_425| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse58 1 (select .cse32 1))) |v_#memory_$Pointer$.offset_424|) (= (select |v_#valid_124| 1) 1) (= (store |v_#memory_$Pointer$.offset_423| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse33 73 (select .cse60 73))) |v_#memory_$Pointer$.offset_422|) (= |v_#memory_$Pointer$.base_429| (let ((.cse61 (let ((.cse62 (store |v_#memory_$Pointer$.base_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base| (store (select |v_#memory_$Pointer$.base_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40 |c_ULTIMATE.start_main_~#devext~0#1.base|)))) (store .cse62 |c_ULTIMATE.start_main_~#d~0#1.base| (store (select .cse62 |c_ULTIMATE.start_main_~#d~0#1.base|) 24 |c_ULTIMATE.start_main_~#ext~0#1.base|))))) (store .cse61 |c_ULTIMATE.start_main_~#stack~0#1.base| (store (select .cse61 |c_ULTIMATE.start_main_~#stack~0#1.base|) 0 (select .cse19 0))))) (= (store |v_#memory_$Pointer$.offset_429| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse46 84 (select (select |v_#memory_$Pointer$.offset_428| |c_ULTIMATE.start_main_~#stack~0#1.base|) 84))) |v_#memory_$Pointer$.offset_428|) (= (store |v_#memory_$Pointer$.base_424| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse23 84 (select (select |v_#memory_$Pointer$.base_426| |c_ULTIMATE.start_main_~#stack~0#1.base|) 84))) |v_#memory_$Pointer$.base_426|) (= (store |v_#memory_$Pointer$.base_421| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse39 1 (select .cse26 1))) |v_#memory_$Pointer$.base_422|) (= (store |v_#memory_int_439| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse17 56 (select .cse34 56))) |v_#memory_int_438|) (= (select .cse49 1) 0) (= (let ((.cse63 (let ((.cse64 (store |v_#memory_$Pointer$.offset_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base| (store (select |v_#memory_$Pointer$.offset_1096| |c_ULTIMATE.start_main_~#devobj~0#1.base|) 40 0)))) (store .cse64 |c_ULTIMATE.start_main_~#d~0#1.base| (store (select .cse64 |c_ULTIMATE.start_main_~#d~0#1.base|) 24 0))))) (store .cse63 |c_ULTIMATE.start_main_~#stack~0#1.base| (store (select .cse63 |c_ULTIMATE.start_main_~#stack~0#1.base|) 0 (select .cse37 0)))) |v_#memory_$Pointer$.offset_427|) (= (select .cse65 |c_ULTIMATE.start_main_~#irp~0#1.base|) 0) (= (store |v_#memory_$Pointer$.offset_422| |c_ULTIMATE.start_main_~#stack~0#1.base| (store (store (store (store .cse60 16 0) 52 0) 88 0) 8 (select .cse14 8))) |v_#memory_$Pointer$.offset_421|) (= (select |v_#valid_124| |c_ULTIMATE.start_main_~#d~0#1.base|) 0) (= (select .cse66 |c_ULTIMATE.start_main_~#u~0#1.base|) 0) (= (select .cse9 |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base|) 0) (= |v_#memory_int_436| (store |v_#memory_int_437| |c_ULTIMATE.start_main_~#d~0#1.base| (store .cse35 164 (select .cse50 164)))) (= (store |v_#memory_$Pointer$.offset_419| |c_ULTIMATE.start_main_~#stack~0#1.base| (store .cse24 12 (select .cse45 12))) |v_#memory_$Pointer$.offset_420|) (= (select .cse67 |c_ULTIMATE.start_main_~#ext~0#1.base|) 0))))))))))) (= |c_ULTIMATE.start_main_~#devext~0#1.offset| 0) (= |c_ULTIMATE.start_main_~#devobj~0#1.base| |c_ULTIMATE.start_KbFilter_AddDevice_#in~PDO#1.base|) (= c_~_SLAM_alloc_dummy~0 0) (<= 0 (+ |c_ULTIMATE.start_KbFilter_AddDevice_~status~0#1| 2147483648)) (= |c_ULTIMATE.start_main_~#hookkb~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#hookkb~0#1.base| 0)) (<= .cse0 |c_ULTIMATE.start_main_~#hookkb~0#1.base|) (= |c_ULTIMATE.start_main_~#u~0#1.offset| 0) (= c_~setEventCalled~0 0) (not (= |c_ULTIMATE.start_main_~#devobj~0#1.base| 0)) (= |c_ULTIMATE.start_KbFilter_AddDevice_~PDO#1.offset| 0) (= c_~s~0 1) (<= |c_ULTIMATE.start_KbFilter_AddDevice_~status~0#1| 2147483647) (= c_~lowerDriverReturn~0 0) (= |c_ULTIMATE.start_KbFilter_AddDevice_~Driver#1.offset| 0) (= |c_ULTIMATE.start_main_~#ext~0#1.offset| 0) (<= .cse0 |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base|) (<= 1 |c_#StackHeapBarrier|) (= c_~compFptr~0.offset 0) (= |c_ULTIMATE.start_KbFilter_AddDevice_#in~PDO#1.offset| 0) (= |c_ULTIMATE.start_KbFilter_AddDevice_#in~Driver#1.offset| 0) (= c_~customIrp~0 0) (= |c_ULTIMATE.start_main_~#irp~0#1.offset| 0) (<= 0 (+ |c_ULTIMATE.start_main_~__BLAST_NONDET~0#1| 2147483648)) (<= .cse0 |c_ULTIMATE.start_main_~#devext~0#1.base|) (= c_~SKIP2~0 4) (not (= |c_ULTIMATE.start_main_~#irp~0#1.base| 0)) (<= .cse0 |c_ULTIMATE.start_main_~#stack~0#1.base|) (= c_~UNLOADED~0 0) (= 5 c_~MPR1~0) (= c_~pirp~0.offset 0) (<= 0 (+ |c_ULTIMATE.start_main_~we_should_unload~0#1| 2147483648)) (<= |c_ULTIMATE.start_main_~__BLAST_NONDET~0#1| 2147483647) (= |c_ULTIMATE.start_main_~#d~0#1.base| |c_ULTIMATE.start_KbFilter_AddDevice_#in~Driver#1.base|) (= c_~pended~0 0) (<= .cse0 |c_ULTIMATE.start_main_~#d~0#1.base|) (not (= |c_ULTIMATE.start_main_~#u~0#1.base| 0)) (<= .cse0 |c_ULTIMATE.start_main_~#irp~0#1.base|) (<= .cse0 |c_ULTIMATE.start_main_~#ext~0#1.base|) (= |c_ULTIMATE.start_DriverEntry_#res#1| 0) (= |c_ULTIMATE.start_KbFilter_AddDevice_~Driver#1.base| |c_ULTIMATE.start_KbFilter_AddDevice_#in~Driver#1.base|) (not (= |c_ULTIMATE.start_main_~#d~0#1.base| 0)) (= |c_ULTIMATE.start_KbFilter_AddDevice_~PDO#1.base| |c_ULTIMATE.start_KbFilter_AddDevice_#in~PDO#1.base|) (= c_~NP~0 1) (= 7 c_~IPC~0) (= 3 c_~SKIP1~0) (= |c_ULTIMATE.start_main_~#d~0#1.offset| 0) (= c_~MPR3~0 6) (= 0 |c_ULTIMATE.start_main_~status~5#1|) (<= |c_ULTIMATE.start_main_~we_should_unload~0#1| 2147483647) (not (= |c_ULTIMATE.start_main_~#stack~0#1.base| 0)) (<= 0 (+ |c_ULTIMATE.start_main_~irp_choice~0#1| 2147483648)) (= |c_ULTIMATE.start_main_~#devobj~0#1.offset| 0) (not (= |c_ULTIMATE.start_main_~#ext~0#1.base| 0)) (not (= |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.base| 0)) (= c_~compRegistered~0 0) (not (= |c_ULTIMATE.start_main_~#devext~0#1.base| 0)) (= |c_ULTIMATE.start_main_~#stack~0#1.offset| 0) (= 2 c_~DC~0) (= |c_ULTIMATE.start_KbFilter_AddDevice_~#device~0#1.offset| 0))) is different from false [2023-12-02 13:19:13,129 WARN L293 SmtUtils]: Spent 41.78s on a formula simplification that was a NOOP. DAG size: 246 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:20:19,791 WARN L293 SmtUtils]: Spent 1.07m on a formula simplification that was a NOOP. DAG size: 260 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:21:24,093 WARN L293 SmtUtils]: Spent 1.02m on a formula simplification that was a NOOP. DAG size: 259 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:22:29,408 WARN L293 SmtUtils]: Spent 1.04m on a formula simplification that was a NOOP. DAG size: 262 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:23:32,604 WARN L293 SmtUtils]: Spent 58.90s on a formula simplification that was a NOOP. DAG size: 264 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:24:38,425 WARN L293 SmtUtils]: Spent 1.01m on a formula simplification that was a NOOP. DAG size: 267 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:26:25,334 WARN L293 SmtUtils]: Spent 1.61m on a formula simplification that was a NOOP. DAG size: 325 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:28:04,504 WARN L293 SmtUtils]: Spent 1.49m on a formula simplification that was a NOOP. DAG size: 348 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-02 13:28:04,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [43442554] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 13:28:04,505 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-12-02 13:28:04,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4, 4] total 17 [2023-12-02 13:28:04,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216854125] [2023-12-02 13:28:04,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:28:04,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-02 13:28:04,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:28:04,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-02 13:28:04,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=166, Unknown=3, NotChecked=54, Total=272 [2023-12-02 13:28:04,507 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 13:28:06,516 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 [] [2023-12-02 13:28:08,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:10,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:12,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:14,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:16,575 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:18,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:20,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:22,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:24,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:25,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:27,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:29,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:40,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:41,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:43,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:45,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:46,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:48,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:50,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:52,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:55,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:57,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:28:59,329 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:29:01,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:29:03,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:29:05,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:29:07,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:29:09,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:29:11,077 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-12-02 13:29:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:29:12,569 INFO L93 Difference]: Finished difference Result 108 states and 111 transitions. [2023-12-02 13:29:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-12-02 13:29:12,569 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 59 [2023-12-02 13:29:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:29:12,570 INFO L225 Difference]: With dead ends: 108 [2023-12-02 13:29:12,570 INFO L226 Difference]: Without dead ends: 61 [2023-12-02 13:29:12,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 579.1s TimeCoverageRelationStatistics Valid=49, Invalid=166, Unknown=3, NotChecked=54, Total=272 [2023-12-02 13:29:12,571 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 102 IncrementalHoareTripleChecker+Unchecked, 68.0s IncrementalHoareTripleChecker+Time [2023-12-02 13:29:12,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 187 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 18 Unknown, 102 Unchecked, 68.0s Time] [2023-12-02 13:29:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2023-12-02 13:29:12,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2023-12-02 13:29:12,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.0588235294117647) internal successors, (54), 51 states have internal predecessors, (54), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:29:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2023-12-02 13:29:12,579 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 59 [2023-12-02 13:29:12,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:29:12,580 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2023-12-02 13:29:12,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 12 states have internal predecessors, (50), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-12-02 13:29:12,580 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2023-12-02 13:29:12,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 13:29:12,580 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:12,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:29:12,597 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-02 13:29:12,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-12-02 13:29:12,781 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:29:12,781 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:12,781 INFO L85 PathProgramCache]: Analyzing trace with hash 386269659, now seen corresponding path program 1 times [2023-12-02 13:29:12,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:12,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797130078] [2023-12-02 13:29:12,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:12,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:29:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:13,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:29:13,652 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:29:13,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797130078] [2023-12-02 13:29:13,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797130078] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:29:13,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033976974] [2023-12-02 13:29:13,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:13,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:29:13,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:29:13,654 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:29:13,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-02 13:29:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:14,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 1144 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 13:29:14,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:29:14,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:29:14,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:29:14,527 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 13:29:14,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033976974] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-02 13:29:14,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-12-02 13:29:14,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 5] total 8 [2023-12-02 13:29:14,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378886575] [2023-12-02 13:29:14,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 13:29:14,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 13:29:14,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 13:29:14,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 13:29:14,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:29:14,529 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 13:29:16,537 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 [] [2023-12-02 13:29:18,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:29:20,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 13:29:21,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 13:29:21,755 INFO L93 Difference]: Finished difference Result 108 states and 110 transitions. [2023-12-02 13:29:21,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 13:29:21,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 60 [2023-12-02 13:29:21,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 13:29:21,756 INFO L225 Difference]: With dead ends: 108 [2023-12-02 13:29:21,756 INFO L226 Difference]: Without dead ends: 62 [2023-12-02 13:29:21,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 115 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-02 13:29:21,757 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 2 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2023-12-02 13:29:21,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 126 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 7.2s Time] [2023-12-02 13:29:21,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2023-12-02 13:29:21,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2023-12-02 13:29:21,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 52 states have (on average 1.0576923076923077) internal successors, (55), 52 states have internal predecessors, (55), 5 states have call successors, (5), 5 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-02 13:29:21,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2023-12-02 13:29:21,767 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 60 [2023-12-02 13:29:21,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 13:29:21,767 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2023-12-02 13:29:21,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-12-02 13:29:21,768 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2023-12-02 13:29:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 13:29:21,768 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 13:29:21,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 13:29:21,776 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-02 13:29:21,968 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:29:21,969 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION === [errorFnErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 13:29:21,969 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 13:29:21,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1243987612, now seen corresponding path program 1 times [2023-12-02 13:29:21,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 13:29:21,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113307637] [2023-12-02 13:29:21,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:21,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 13:29:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:22,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 13:29:22,751 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 13:29:22,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113307637] [2023-12-02 13:29:22,752 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113307637] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 13:29:22,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854877057] [2023-12-02 13:29:22,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 13:29:22,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 13:29:22,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 13:29:22,753 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 13:29:22,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_141c725f-3023-4034-805a-307d7892f84b/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-02 13:29:24,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 13:29:24,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 1163 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 13:29:24,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 13:29:24,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 13:29:24,250 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 13:29:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 13:29:24,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854877057] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 13:29:24,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1619794844] [2023-12-02 13:29:24,292 INFO L159 IcfgInterpreter]: Started Sifa with 59 locations of interest [2023-12-02 13:29:24,292 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 13:29:24,293 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 13:29:24,293 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 13:29:24,293 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs