./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--stk1160--stk1160.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--stk1160--stk1160.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f0f6d4d806244ea3cd1017e40765f88a5cfdbdb015e9bc282de078894fc197b0 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:42:18,250 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:42:18,321 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 01:42:18,327 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:42:18,327 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:42:18,354 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:42:18,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:42:18,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:42:18,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:42:18,356 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:42:18,357 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:42:18,357 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:42:18,358 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:42:18,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:42:18,359 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:42:18,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:42:18,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:42:18,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:42:18,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:42:18,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:42:18,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:42:18,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:42:18,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:42:18,364 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:42:18,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:42:18,365 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:42:18,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:42:18,366 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:42:18,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:42:18,367 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:42:18,367 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:42:18,367 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:42:18,368 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:42:18,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:42:18,369 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:42:18,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:42:18,370 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:42:18,370 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:42:18,370 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:42:18,371 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0f6d4d806244ea3cd1017e40765f88a5cfdbdb015e9bc282de078894fc197b0 [2023-11-29 01:42:18,620 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:42:18,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:42:18,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:42:18,648 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:42:18,648 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:42:18,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--stk1160--stk1160.ko-entry_point.cil.out.i [2023-11-29 01:42:21,593 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:42:22,072 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:42:22,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--stk1160--stk1160.ko-entry_point.cil.out.i [2023-11-29 01:42:22,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/data/09ee8acca/5ff732700e664ba7897ba0fd41560288/FLAG46cdb2311 [2023-11-29 01:42:22,123 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/data/09ee8acca/5ff732700e664ba7897ba0fd41560288 [2023-11-29 01:42:22,125 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:42:22,126 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:42:22,127 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:42:22,128 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:42:22,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:42:22,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:22" (1/1) ... [2023-11-29 01:42:22,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22a1e764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:22, skipping insertion in model container [2023-11-29 01:42:22,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:42:22" (1/1) ... [2023-11-29 01:42:22,404 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:42:22,824 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4976] [2023-11-29 01:42:23,025 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_523bde8a-dce4-49ca-bb18-b8c0125c5b79/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--stk1160--stk1160.ko-entry_point.cil.out.i[172166,172179] [2023-11-29 01:42:24,174 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:42:24,258 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:42:24,357 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4976] [2023-11-29 01:42:24,374 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_523bde8a-dce4-49ca-bb18-b8c0125c5b79/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--stk1160--stk1160.ko-entry_point.cil.out.i[172166,172179] [2023-11-29 01:42:24,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6560] [2023-11-29 01:42:24,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:42:24,835 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:42:24,835 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 01:42:24,842 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:42:24,842 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24 WrapperNode [2023-11-29 01:42:24,842 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:42:24,843 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:42:24,844 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:42:24,844 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:42:24,850 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:24,948 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:26,594 INFO L138 Inliner]: procedures = 249, calls = 5602, calls flagged for inlining = 130, calls inlined = 130, statements flattened = 11231 [2023-11-29 01:42:26,595 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:42:26,596 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:42:26,596 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:42:26,596 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:42:26,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:26,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:27,278 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:29,862 INFO L175 MemorySlicer]: Split 4885 memory accesses to 26 slices as follows [42, 8, 6, 843, 914, 8, 680, 2, 33, 6, 3, 1, 9, 19, 2, 2, 2, 1, 21, 6, 2165, 21, 6, 2, 75, 8]. 44 percent of accesses are in the largest equivalence class. The 1205 initializations are split as follows [42, 8, 6, 323, 344, 8, 260, 2, 0, 0, 0, 1, 0, 19, 0, 0, 0, 0, 0, 6, 170, 0, 6, 2, 0, 8]. The 1807 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 30, 5, 3, 0, 1, 0, 1, 1, 1, 0, 18, 0, 1654, 18, 0, 0, 75, 0]. [2023-11-29 01:42:29,863 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:29,863 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:31,669 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:31,717 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:31,772 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:31,804 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:31,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:42:31,883 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:42:31,883 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:42:31,883 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:42:31,884 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (1/1) ... [2023-11-29 01:42:31,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:42:31,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:42:31,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:42:31,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:42:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#0 [2023-11-29 01:42:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#1 [2023-11-29 01:42:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#2 [2023-11-29 01:42:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#3 [2023-11-29 01:42:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#4 [2023-11-29 01:42:31,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#5 [2023-11-29 01:42:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#6 [2023-11-29 01:42:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#7 [2023-11-29 01:42:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#8 [2023-11-29 01:42:31,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#9 [2023-11-29 01:42:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#10 [2023-11-29 01:42:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#11 [2023-11-29 01:42:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#12 [2023-11-29 01:42:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#13 [2023-11-29 01:42:31,951 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#14 [2023-11-29 01:42:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#15 [2023-11-29 01:42:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#16 [2023-11-29 01:42:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#17 [2023-11-29 01:42:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#18 [2023-11-29 01:42:31,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#19 [2023-11-29 01:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#20 [2023-11-29 01:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#21 [2023-11-29 01:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#22 [2023-11-29 01:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#23 [2023-11-29 01:42:31,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#24 [2023-11-29 01:42:31,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy#25 [2023-11-29 01:42:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#0 [2023-11-29 01:42:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#1 [2023-11-29 01:42:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#2 [2023-11-29 01:42:31,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#3 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#4 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#5 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#6 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#7 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#8 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#9 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#10 [2023-11-29 01:42:31,955 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#11 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#12 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#13 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#14 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#15 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#16 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#17 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#18 [2023-11-29 01:42:31,956 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#19 [2023-11-29 01:42:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#20 [2023-11-29 01:42:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#21 [2023-11-29 01:42:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#22 [2023-11-29 01:42:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#23 [2023-11-29 01:42:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#24 [2023-11-29 01:42:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy#25 [2023-11-29 01:42:31,957 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_reset_ac97 [2023-11-29 01:42:31,957 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_reset_ac97 [2023-11-29 01:42:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_finish [2023-11-29 01:42:31,958 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_finish [2023-11-29 01:42:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_poll [2023-11-29 01:42:31,958 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_fop_poll [2023-11-29 01:42:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-29 01:42:31,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-29 01:42:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-29 01:42:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-29 01:42:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-29 01:42:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-29 01:42:31,959 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-29 01:42:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-29 01:42:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-29 01:42:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-29 01:42:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-29 01:42:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-29 01:42:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-29 01:42:31,960 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2023-11-29 01:42:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2023-11-29 01:42:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2023-11-29 01:42:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2023-11-29 01:42:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2023-11-29 01:42:31,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2023-11-29 01:42:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2023-11-29 01:42:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2023-11-29 01:42:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#21 [2023-11-29 01:42:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#22 [2023-11-29 01:42:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#23 [2023-11-29 01:42:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#24 [2023-11-29 01:42:31,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#25 [2023-11-29 01:42:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-29 01:42:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-29 01:42:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-29 01:42:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-29 01:42:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-29 01:42:31,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2023-11-29 01:42:31,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2023-11-29 01:42:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2023-11-29 01:42:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2023-11-29 01:42:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2023-11-29 01:42:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2023-11-29 01:42:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2023-11-29 01:42:31,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2023-11-29 01:42:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2023-11-29 01:42:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2023-11-29 01:42:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2023-11-29 01:42:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#24 [2023-11-29 01:42:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#25 [2023-11-29 01:42:31,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-29 01:42:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-29 01:42:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-29 01:42:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-29 01:42:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-29 01:42:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-29 01:42:31,967 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_mmap [2023-11-29 01:42:31,967 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_fop_mmap [2023-11-29 01:42:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure start_streaming [2023-11-29 01:42:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure start_streaming [2023-11-29 01:42:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-29 01:42:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-29 01:42:31,968 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_is_busy [2023-11-29 01:42:31,968 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_is_busy [2023-11-29 01:42:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_clear_queue [2023-11-29 01:42:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_clear_queue [2023-11-29 01:42:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-29 01:42:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-29 01:42:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_cancel_isoc [2023-11-29 01:42:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_cancel_isoc [2023-11-29 01:42:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-29 01:42:31,969 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-29 01:42:31,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-29 01:42:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-29 01:42:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_device_unregister [2023-11-29 01:42:31,970 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_device_unregister [2023-11-29 01:42:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 01:42:31,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 01:42:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 01:42:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 01:42:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-29 01:42:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-29 01:42:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-29 01:42:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-29 01:42:31,971 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-29 01:42:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-11-29 01:42:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-11-29 01:42:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-11-29 01:42:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-11-29 01:42:31,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2023-11-29 01:42:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2023-11-29 01:42:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2023-11-29 01:42:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2023-11-29 01:42:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2023-11-29 01:42:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2023-11-29 01:42:31,973 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#19 [2023-11-29 01:42:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#20 [2023-11-29 01:42:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#21 [2023-11-29 01:42:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#22 [2023-11-29 01:42:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#23 [2023-11-29 01:42:31,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#24 [2023-11-29 01:42:31,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#25 [2023-11-29 01:42:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 01:42:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 01:42:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 01:42:31,975 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-11-29 01:42:31,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#19 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#20 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#21 [2023-11-29 01:42:31,977 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#22 [2023-11-29 01:42:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#23 [2023-11-29 01:42:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#24 [2023-11-29 01:42:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#25 [2023-11-29 01:42:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 01:42:31,978 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 01:42:31,978 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_select_input [2023-11-29 01:42:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_select_input [2023-11-29 01:42:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___3 [2023-11-29 01:42:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___3 [2023-11-29 01:42:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-29 01:42:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-29 01:42:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-29 01:42:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-29 01:42:31,979 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_2 [2023-11-29 01:42:31,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_2 [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_free_isoc [2023-11-29 01:42:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_free_isoc [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 01:42:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2023-11-29 01:42:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2023-11-29 01:42:31,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2023-11-29 01:42:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2023-11-29 01:42:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2023-11-29 01:42:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2023-11-29 01:42:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-29 01:42:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-29 01:42:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-29 01:42:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-29 01:42:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-29 01:42:31,983 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-29 01:42:31,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-29 01:42:31,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2023-11-29 01:42:31,985 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-29 01:42:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-29 01:42:31,986 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_write_reg [2023-11-29 01:42:31,986 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_write_reg [2023-11-29 01:42:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-29 01:42:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-29 01:42:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-11-29 01:42:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-11-29 01:42:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-29 01:42:31,987 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-29 01:42:31,987 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-29 01:42:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-29 01:42:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-29 01:42:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-29 01:42:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-29 01:42:31,988 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-29 01:42:31,988 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_i2c_busy_wait [2023-11-29 01:42:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_i2c_busy_wait [2023-11-29 01:42:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2023-11-29 01:42:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2023-11-29 01:42:31,989 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2023-11-29 01:42:31,989 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2023-11-29 01:42:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_probe [2023-11-29 01:42:31,990 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_probe [2023-11-29 01:42:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-29 01:42:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-29 01:42:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-29 01:42:31,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-29 01:42:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-29 01:42:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-29 01:42:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-29 01:42:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-29 01:42:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-29 01:42:31,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-29 01:42:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-29 01:42:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-29 01:42:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-29 01:42:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2023-11-29 01:42:31,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#21 [2023-11-29 01:42:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#22 [2023-11-29 01:42:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#23 [2023-11-29 01:42:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#24 [2023-11-29 01:42:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#25 [2023-11-29 01:42:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-29 01:42:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-29 01:42:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2023-11-29 01:42:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2023-11-29 01:42:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-29 01:42:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-29 01:42:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2023-11-29 01:42:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2023-11-29 01:42:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_ops_wait_prepare [2023-11-29 01:42:31,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_ops_wait_prepare [2023-11-29 01:42:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2023-11-29 01:42:31,995 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2023-11-29 01:42:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-29 01:42:31,995 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-29 01:42:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 01:42:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 01:42:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 01:42:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-29 01:42:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2023-11-29 01:42:31,997 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-29 01:42:31,998 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 01:42:31,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2023-11-29 01:42:31,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2023-11-29 01:42:32,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-29 01:42:32,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#16 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#17 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#18 [2023-11-29 01:42:32,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#19 [2023-11-29 01:42:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#20 [2023-11-29 01:42:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#21 [2023-11-29 01:42:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#22 [2023-11-29 01:42:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#23 [2023-11-29 01:42:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#24 [2023-11-29 01:42:32,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#25 [2023-11-29 01:42:32,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-29 01:42:32,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-29 01:42:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-29 01:42:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-29 01:42:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-29 01:42:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-29 01:42:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-29 01:42:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-29 01:42:32,004 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2023-11-29 01:42:32,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#16 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#17 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#18 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#19 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#20 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#21 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#22 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#23 [2023-11-29 01:42:32,006 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#24 [2023-11-29 01:42:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#25 [2023-11-29 01:42:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-29 01:42:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-29 01:42:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_read_reg [2023-11-29 01:42:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_read_reg [2023-11-29 01:42:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-29 01:42:32,007 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-29 01:42:32,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:42:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:42:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:42:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 01:42:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 01:42:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 01:42:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 01:42:32,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2023-11-29 01:42:32,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2023-11-29 01:42:32,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2023-11-29 01:42:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2023-11-29 01:42:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2023-11-29 01:42:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2023-11-29 01:42:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2023-11-29 01:42:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_set_std [2023-11-29 01:42:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_set_std [2023-11-29 01:42:32,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-29 01:42:32,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-29 01:42:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:42:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:42:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_start_streaming [2023-11-29 01:42:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_start_streaming [2023-11-29 01:42:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_i2c_unregister [2023-11-29 01:42:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_i2c_unregister [2023-11-29 01:42:32,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-29 01:42:32,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-29 01:42:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:42:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:42:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:42:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 01:42:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 01:42:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 01:42:32,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2023-11-29 01:42:32,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2023-11-29 01:42:32,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2023-11-29 01:42:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2023-11-29 01:42:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2023-11-29 01:42:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_uninit_isoc [2023-11-29 01:42:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_uninit_isoc [2023-11-29 01:42:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-29 01:42:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-29 01:42:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-29 01:42:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-29 01:42:32,016 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2023-11-29 01:42:32,016 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2023-11-29 01:42:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-29 01:42:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-29 01:42:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_queue [2023-11-29 01:42:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_queue [2023-11-29 01:42:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_log_status [2023-11-29 01:42:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_log_status [2023-11-29 01:42:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure print_err_status [2023-11-29 01:42:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure print_err_status [2023-11-29 01:42:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2023-11-29 01:42:32,017 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2023-11-29 01:42:32,017 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2023-11-29 01:42:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2023-11-29 01:42:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-29 01:42:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-29 01:42:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-29 01:42:32,018 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-29 01:42:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:42:32,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 01:42:32,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2023-11-29 01:42:32,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2023-11-29 01:42:32,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2023-11-29 01:42:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_disconnect [2023-11-29 01:42:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_disconnect [2023-11-29 01:42:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure stk1160_isoc_irq [2023-11-29 01:42:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure stk1160_isoc_irq [2023-11-29 01:42:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-11-29 01:42:32,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:42:32,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:42:33,402 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:42:33,408 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:43:21,750 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-29 01:43:22,793 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___3FINAL: assume true; [2023-11-29 01:43:32,378 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:43:32,983 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:43:32,984 INFO L309 CfgBuilder]: Removed 28 assume(true) statements. [2023-11-29 01:43:32,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:43:32 BoogieIcfgContainer [2023-11-29 01:43:32,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:43:32,988 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:43:32,989 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:43:32,992 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:43:32,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:42:22" (1/3) ... [2023-11-29 01:43:32,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19736c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:43:32, skipping insertion in model container [2023-11-29 01:43:32,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:42:24" (2/3) ... [2023-11-29 01:43:32,994 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19736c50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:43:32, skipping insertion in model container [2023-11-29 01:43:32,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:43:32" (3/3) ... [2023-11-29 01:43:32,995 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--stk1160--stk1160.ko-entry_point.cil.out.i [2023-11-29 01:43:33,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:43:33,016 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 01:43:33,104 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:43:33,111 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@185ab9ec, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:43:33,112 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 01:43:33,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 1292 states, 880 states have (on average 1.434090909090909) internal successors, (1262), 913 states have internal predecessors, (1262), 335 states have call successors, (335), 77 states have call predecessors, (335), 75 states have return successors, (324), 317 states have call predecessors, (324), 324 states have call successors, (324) [2023-11-29 01:43:33,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 01:43:33,139 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:43:33,139 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] [2023-11-29 01:43:33,140 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:43:33,146 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:43:33,146 INFO L85 PathProgramCache]: Analyzing trace with hash 457536145, now seen corresponding path program 1 times [2023-11-29 01:43:33,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:43:33,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807044854] [2023-11-29 01:43:33,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:43:33,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:43:33,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:34,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:43:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:43:34,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:43:34,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:43:34,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807044854] [2023-11-29 01:43:34,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807044854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:43:34,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:43:34,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:43:34,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488071781] [2023-11-29 01:43:34,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:43:34,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:43:34,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:43:34,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:43:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:43:34,822 INFO L87 Difference]: Start difference. First operand has 1292 states, 880 states have (on average 1.434090909090909) internal successors, (1262), 913 states have internal predecessors, (1262), 335 states have call successors, (335), 77 states have call predecessors, (335), 75 states have return successors, (324), 317 states have call predecessors, (324), 324 states have call successors, (324) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2023-11-29 01:43:43,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:47,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:53,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:43:57,447 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:01,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:06,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:10,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:15,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:16,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:26,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:30,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:35,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:40,093 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:44,644 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:49,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:53,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:44:57,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:01,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:03,936 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:09,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:45:09,797 INFO L93 Difference]: Finished difference Result 4040 states and 6360 transitions. [2023-11-29 01:45:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:45:09,800 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), 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 22 [2023-11-29 01:45:09,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:45:09,847 INFO L225 Difference]: With dead ends: 4040 [2023-11-29 01:45:09,847 INFO L226 Difference]: Without dead ends: 2722 [2023-11-29 01:45:09,862 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:45:09,865 INFO L413 NwaCegarLoop]: 1569 mSDtfsCounter, 2204 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 1483 mSolverCounterSat, 886 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 89.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 3749 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 886 IncrementalHoareTripleChecker+Valid, 1483 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 94.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:45:09,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 3749 Invalid, 2386 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [886 Valid, 1483 Invalid, 17 Unknown, 0 Unchecked, 94.4s Time] [2023-11-29 01:45:09,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2722 states. [2023-11-29 01:45:10,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2722 to 2514. [2023-11-29 01:45:10,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2514 states, 1733 states have (on average 1.4148874783612233) internal successors, (2452), 1769 states have internal predecessors, (2452), 632 states have call successors, (632), 149 states have call predecessors, (632), 148 states have return successors, (627), 613 states have call predecessors, (627), 627 states have call successors, (627) [2023-11-29 01:45:10,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2514 states to 2514 states and 3711 transitions. [2023-11-29 01:45:10,147 INFO L78 Accepts]: Start accepts. Automaton has 2514 states and 3711 transitions. Word has length 22 [2023-11-29 01:45:10,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:45:10,147 INFO L495 AbstractCegarLoop]: Abstraction has 2514 states and 3711 transitions. [2023-11-29 01:45:10,148 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), 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) [2023-11-29 01:45:10,148 INFO L276 IsEmpty]: Start isEmpty. Operand 2514 states and 3711 transitions. [2023-11-29 01:45:10,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-29 01:45:10,153 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:45:10,153 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:45:10,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:45:10,154 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:45:10,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:45:10,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1667868312, now seen corresponding path program 1 times [2023-11-29 01:45:10,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:45:10,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657985400] [2023-11-29 01:45:10,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:45:10,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:45:10,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:11,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:45:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:11,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:45:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:45:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:45:11,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:45:11,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657985400] [2023-11-29 01:45:11,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657985400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:45:11,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:45:11,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:45:11,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735089091] [2023-11-29 01:45:11,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:45:11,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:45:11,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:45:11,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:45:11,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:45:11,648 INFO L87 Difference]: Start difference. First operand 2514 states and 3711 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:45:20,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:25,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:30,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:34,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:39,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:44,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:48,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:51,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:45:55,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:03,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:07,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:12,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:16,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:21,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:25,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:30,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:34,021 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:41,726 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:45,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:46:50,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:46:50,863 INFO L93 Difference]: Finished difference Result 7951 states and 12193 transitions. [2023-11-29 01:46:50,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:46:50,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2023-11-29 01:46:50,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:46:50,917 INFO L225 Difference]: With dead ends: 7951 [2023-11-29 01:46:50,918 INFO L226 Difference]: Without dead ends: 5440 [2023-11-29 01:46:50,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:46:50,934 INFO L413 NwaCegarLoop]: 1559 mSDtfsCounter, 2255 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 1495 mSolverCounterSat, 887 mSolverCounterUnsat, 17 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 2399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 887 IncrementalHoareTripleChecker+Valid, 1495 IncrementalHoareTripleChecker+Invalid, 17 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 98.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:46:50,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2521 Valid, 3731 Invalid, 2399 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [887 Valid, 1495 Invalid, 17 Unknown, 0 Unchecked, 98.7s Time] [2023-11-29 01:46:50,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5440 states. [2023-11-29 01:46:51,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5440 to 5100. [2023-11-29 01:46:51,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5100 states, 3515 states have (on average 1.4119487908961592) internal successors, (4963), 3589 states have internal predecessors, (4963), 1266 states have call successors, (1266), 297 states have call predecessors, (1266), 318 states have return successors, (1369), 1249 states have call predecessors, (1369), 1261 states have call successors, (1369) [2023-11-29 01:46:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5100 states to 5100 states and 7598 transitions. [2023-11-29 01:46:51,229 INFO L78 Accepts]: Start accepts. Automaton has 5100 states and 7598 transitions. Word has length 30 [2023-11-29 01:46:51,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:46:51,230 INFO L495 AbstractCegarLoop]: Abstraction has 5100 states and 7598 transitions. [2023-11-29 01:46:51,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:46:51,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5100 states and 7598 transitions. [2023-11-29 01:46:51,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:46:51,233 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:46:51,233 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:46:51,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:46:51,233 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:46:51,233 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:46:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash 162860035, now seen corresponding path program 1 times [2023-11-29 01:46:51,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:46:51,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412988451] [2023-11-29 01:46:51,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:46:51,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:46:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:52,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:46:52,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:52,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:46:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:46:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:46:52,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:46:52,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412988451] [2023-11-29 01:46:52,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412988451] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:46:52,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:46:52,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:46:52,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15132983] [2023-11-29 01:46:52,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:46:52,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:46:52,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:46:52,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:46:52,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:46:52,344 INFO L87 Difference]: Start difference. First operand 5100 states and 7598 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:47:02,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:06,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:12,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:16,490 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:21,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:25,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:29,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:31,974 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:35,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:42,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:47:42,683 INFO L93 Difference]: Finished difference Result 5432 states and 8370 transitions. [2023-11-29 01:47:42,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:47:42,684 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-29 01:47:42,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:47:42,716 INFO L225 Difference]: With dead ends: 5432 [2023-11-29 01:47:42,716 INFO L226 Difference]: Without dead ends: 5429 [2023-11-29 01:47:42,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:47:42,720 INFO L413 NwaCegarLoop]: 1533 mSDtfsCounter, 1966 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 529 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 47.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2189 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 529 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.7s IncrementalHoareTripleChecker+Time [2023-11-29 01:47:42,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2189 Valid, 2318 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [529 Valid, 941 Invalid, 8 Unknown, 0 Unchecked, 49.7s Time] [2023-11-29 01:47:42,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5429 states. [2023-11-29 01:47:42,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5429 to 5099. [2023-11-29 01:47:42,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5099 states, 3515 states have (on average 1.4116642958748222) internal successors, (4962), 3588 states have internal predecessors, (4962), 1265 states have call successors, (1265), 297 states have call predecessors, (1265), 318 states have return successors, (1369), 1249 states have call predecessors, (1369), 1261 states have call successors, (1369) [2023-11-29 01:47:43,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7596 transitions. [2023-11-29 01:47:43,012 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7596 transitions. Word has length 31 [2023-11-29 01:47:43,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:47:43,012 INFO L495 AbstractCegarLoop]: Abstraction has 5099 states and 7596 transitions. [2023-11-29 01:47:43,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:47:43,012 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7596 transitions. [2023-11-29 01:47:43,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 01:47:43,014 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:47:43,014 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:47:43,014 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 01:47:43,014 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:47:43,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:47:43,015 INFO L85 PathProgramCache]: Analyzing trace with hash 752248571, now seen corresponding path program 1 times [2023-11-29 01:47:43,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:47:43,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215142241] [2023-11-29 01:47:43,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:47:43,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:47:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:47:43,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:47:43,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:47:43,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:47:43,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:47:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:47:43,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:47:43,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215142241] [2023-11-29 01:47:43,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215142241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:47:43,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:47:43,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:47:43,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857751347] [2023-11-29 01:47:43,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:47:43,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:47:43,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:47:43,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:47:43,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:47:43,654 INFO L87 Difference]: Start difference. First operand 5099 states and 7596 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:47:44,779 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:53,023 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:47:57,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:02,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:07,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:11,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:16,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:20,299 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:23,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:27,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:34,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:48:34,650 INFO L93 Difference]: Finished difference Result 5431 states and 8368 transitions. [2023-11-29 01:48:34,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:48:34,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-29 01:48:34,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:48:34,681 INFO L225 Difference]: With dead ends: 5431 [2023-11-29 01:48:34,681 INFO L226 Difference]: Without dead ends: 5428 [2023-11-29 01:48:34,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:48:34,685 INFO L413 NwaCegarLoop]: 1527 mSDtfsCounter, 1965 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 530 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 2308 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.6s IncrementalHoareTripleChecker+Time [2023-11-29 01:48:34,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2190 Valid, 2308 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 940 Invalid, 8 Unknown, 0 Unchecked, 50.6s Time] [2023-11-29 01:48:34,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5428 states. [2023-11-29 01:48:35,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5428 to 5098. [2023-11-29 01:48:35,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5098 states, 3515 states have (on average 1.411379800853485) internal successors, (4961), 3587 states have internal predecessors, (4961), 1264 states have call successors, (1264), 297 states have call predecessors, (1264), 318 states have return successors, (1369), 1249 states have call predecessors, (1369), 1261 states have call successors, (1369) [2023-11-29 01:48:35,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5098 states to 5098 states and 7594 transitions. [2023-11-29 01:48:35,059 INFO L78 Accepts]: Start accepts. Automaton has 5098 states and 7594 transitions. Word has length 32 [2023-11-29 01:48:35,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:48:35,060 INFO L495 AbstractCegarLoop]: Abstraction has 5098 states and 7594 transitions. [2023-11-29 01:48:35,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:48:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5098 states and 7594 transitions. [2023-11-29 01:48:35,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-29 01:48:35,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:48:35,062 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:48:35,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 01:48:35,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:48:35,063 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:48:35,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1843428870, now seen corresponding path program 1 times [2023-11-29 01:48:35,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:48:35,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561559961] [2023-11-29 01:48:35,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:48:35,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:48:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:35,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:48:35,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:35,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:48:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:48:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:48:35,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:48:35,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561559961] [2023-11-29 01:48:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561559961] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:48:35,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:48:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:48:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830671645] [2023-11-29 01:48:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:48:35,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:48:35,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:48:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:48:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:48:35,849 INFO L87 Difference]: Start difference. First operand 5098 states and 7594 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:48:44,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:49,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:54,493 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:48:58,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:03,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:08,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:12,164 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:14,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:17,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:24,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:49:24,685 INFO L93 Difference]: Finished difference Result 5430 states and 8366 transitions. [2023-11-29 01:49:24,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:49:24,686 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2023-11-29 01:49:24,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:49:24,718 INFO L225 Difference]: With dead ends: 5430 [2023-11-29 01:49:24,718 INFO L226 Difference]: Without dead ends: 5427 [2023-11-29 01:49:24,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:49:24,722 INFO L413 NwaCegarLoop]: 1521 mSDtfsCounter, 1963 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 534 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2186 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 1482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 534 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.4s IncrementalHoareTripleChecker+Time [2023-11-29 01:49:24,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2186 Valid, 2303 Invalid, 1482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [534 Valid, 941 Invalid, 7 Unknown, 0 Unchecked, 48.4s Time] [2023-11-29 01:49:24,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5427 states. [2023-11-29 01:49:25,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5427 to 5097. [2023-11-29 01:49:25,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5097 states, 3515 states have (on average 1.411095305832148) internal successors, (4960), 3586 states have internal predecessors, (4960), 1263 states have call successors, (1263), 297 states have call predecessors, (1263), 318 states have return successors, (1369), 1249 states have call predecessors, (1369), 1261 states have call successors, (1369) [2023-11-29 01:49:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5097 states to 5097 states and 7592 transitions. [2023-11-29 01:49:25,028 INFO L78 Accepts]: Start accepts. Automaton has 5097 states and 7592 transitions. Word has length 33 [2023-11-29 01:49:25,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:49:25,028 INFO L495 AbstractCegarLoop]: Abstraction has 5097 states and 7592 transitions. [2023-11-29 01:49:25,029 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:49:25,029 INFO L276 IsEmpty]: Start isEmpty. Operand 5097 states and 7592 transitions. [2023-11-29 01:49:25,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-29 01:49:25,031 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:49:25,031 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:49:25,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 01:49:25,031 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:49:25,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:49:25,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1310284638, now seen corresponding path program 1 times [2023-11-29 01:49:25,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:49:25,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494683099] [2023-11-29 01:49:25,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:49:25,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:49:25,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:25,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 01:49:25,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:25,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:49:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:49:25,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:49:25,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:49:25,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494683099] [2023-11-29 01:49:25,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494683099] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:49:25,673 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:49:25,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:49:25,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972480498] [2023-11-29 01:49:25,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:49:25,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:49:25,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:49:25,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:49:25,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:49:25,676 INFO L87 Difference]: Start difference. First operand 5097 states and 7592 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:49:34,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:39,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:44,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:49,089 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:53,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:49:58,226 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:02,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:06,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:14,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:50:14,317 INFO L93 Difference]: Finished difference Result 5429 states and 8364 transitions. [2023-11-29 01:50:14,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:50:14,318 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2023-11-29 01:50:14,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:50:14,352 INFO L225 Difference]: With dead ends: 5429 [2023-11-29 01:50:14,352 INFO L226 Difference]: Without dead ends: 5420 [2023-11-29 01:50:14,355 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:50:14,356 INFO L413 NwaCegarLoop]: 1529 mSDtfsCounter, 1954 mSDsluCounter, 781 mSDsCounter, 0 mSdLazyCounter, 941 mSolverCounterSat, 526 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2178 SdHoareTripleChecker+Valid, 2310 SdHoareTripleChecker+Invalid, 1474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 526 IncrementalHoareTripleChecker+Valid, 941 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:50:14,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2178 Valid, 2310 Invalid, 1474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [526 Valid, 941 Invalid, 7 Unknown, 0 Unchecked, 48.1s Time] [2023-11-29 01:50:14,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5420 states. [2023-11-29 01:50:14,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5420 to 5090. [2023-11-29 01:50:14,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5090 states, 3509 states have (on average 1.4109432886862354) internal successors, (4951), 3579 states have internal predecessors, (4951), 1262 states have call successors, (1262), 297 states have call predecessors, (1262), 318 states have return successors, (1369), 1249 states have call predecessors, (1369), 1261 states have call successors, (1369) [2023-11-29 01:50:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5090 states to 5090 states and 7582 transitions. [2023-11-29 01:50:14,763 INFO L78 Accepts]: Start accepts. Automaton has 5090 states and 7582 transitions. Word has length 34 [2023-11-29 01:50:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:50:14,763 INFO L495 AbstractCegarLoop]: Abstraction has 5090 states and 7582 transitions. [2023-11-29 01:50:14,763 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), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:50:14,764 INFO L276 IsEmpty]: Start isEmpty. Operand 5090 states and 7582 transitions. [2023-11-29 01:50:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-11-29 01:50:14,781 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:50:14,782 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:14,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 01:50:14,782 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:50:14,782 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:14,783 INFO L85 PathProgramCache]: Analyzing trace with hash 885505563, now seen corresponding path program 1 times [2023-11-29 01:50:14,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:14,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649303320] [2023-11-29 01:50:14,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:14,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:15,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:15,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649303320] [2023-11-29 01:50:15,359 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:50:15,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358617121] [2023-11-29 01:50:15,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:15,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:50:15,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:50:15,364 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:50:15,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:50:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:17,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 5594 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:50:17,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:50:17,721 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2023-11-29 01:50:17,721 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:50:17,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358617121] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:17,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:17,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:50:17,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650863109] [2023-11-29 01:50:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:17,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:50:17,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:17,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:50:17,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:50:17,727 INFO L87 Difference]: Start difference. First operand 5090 states and 7582 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-29 01:50:25,138 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:29,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:34,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:50:34,574 INFO L93 Difference]: Finished difference Result 10301 states and 15418 transitions. [2023-11-29 01:50:34,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:50:34,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 217 [2023-11-29 01:50:34,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:50:34,592 INFO L225 Difference]: With dead ends: 10301 [2023-11-29 01:50:34,592 INFO L226 Difference]: Without dead ends: 5214 [2023-11-29 01:50:34,610 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:50:34,610 INFO L413 NwaCegarLoop]: 1702 mSDtfsCounter, 17 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 3398 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:50:34,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 3398 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 344 Invalid, 2 Unknown, 0 Unchecked, 16.5s Time] [2023-11-29 01:50:34,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5214 states. [2023-11-29 01:50:34,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5214 to 5150. [2023-11-29 01:50:34,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5150 states, 3553 states have (on average 1.4114832535885167) internal successors, (5015), 3623 states have internal predecessors, (5015), 1278 states have call successors, (1278), 297 states have call predecessors, (1278), 318 states have return successors, (1385), 1265 states have call predecessors, (1385), 1277 states have call successors, (1385) [2023-11-29 01:50:35,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5150 states to 5150 states and 7678 transitions. [2023-11-29 01:50:35,021 INFO L78 Accepts]: Start accepts. Automaton has 5150 states and 7678 transitions. Word has length 217 [2023-11-29 01:50:35,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:50:35,022 INFO L495 AbstractCegarLoop]: Abstraction has 5150 states and 7678 transitions. [2023-11-29 01:50:35,023 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-11-29 01:50:35,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5150 states and 7678 transitions. [2023-11-29 01:50:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-11-29 01:50:35,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:50:35,042 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:50:35,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:50:35,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2023-11-29 01:50:35,244 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:50:35,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:50:35,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2096983206, now seen corresponding path program 1 times [2023-11-29 01:50:35,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:50:35,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045148548] [2023-11-29 01:50:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:35,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:50:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:35,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:50:35,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045148548] [2023-11-29 01:50:35,686 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-29 01:50:35,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206370923] [2023-11-29 01:50:35,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:50:35,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:50:35,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:50:35,687 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:50:35,690 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:50:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:50:37,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 5571 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:50:37,796 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:50:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2023-11-29 01:50:38,855 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:50:38,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206370923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:50:38,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:50:38,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 01:50:38,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120407220] [2023-11-29 01:50:38,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:50:38,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:50:38,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:50:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:50:38,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:50:38,858 INFO L87 Difference]: Start difference. First operand 5150 states and 7678 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-29 01:50:44,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:51,180 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:55,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:50:59,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:50:59,385 INFO L93 Difference]: Finished difference Result 15260 states and 22722 transitions. [2023-11-29 01:50:59,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:50:59,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 221 [2023-11-29 01:50:59,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:50:59,421 INFO L225 Difference]: With dead ends: 15260 [2023-11-29 01:50:59,421 INFO L226 Difference]: Without dead ends: 10113 [2023-11-29 01:50:59,443 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 01:50:59,444 INFO L413 NwaCegarLoop]: 1702 mSDtfsCounter, 1754 mSDsluCounter, 1688 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1754 SdHoareTripleChecker+Valid, 3390 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:50:59,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1754 Valid, 3390 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 350 Invalid, 3 Unknown, 0 Unchecked, 20.0s Time] [2023-11-29 01:50:59,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10113 states. [2023-11-29 01:50:59,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10113 to 10106. [2023-11-29 01:50:59,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10106 states, 6991 states have (on average 1.411386067801459) internal successors, (9867), 7129 states have internal predecessors, (9867), 2478 states have call successors, (2478), 593 states have call predecessors, (2478), 636 states have return successors, (2673), 2451 states have call predecessors, (2673), 2477 states have call successors, (2673) [2023-11-29 01:50:59,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10106 states to 10106 states and 15018 transitions. [2023-11-29 01:51:00,000 INFO L78 Accepts]: Start accepts. Automaton has 10106 states and 15018 transitions. Word has length 221 [2023-11-29 01:51:00,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:51:00,001 INFO L495 AbstractCegarLoop]: Abstraction has 10106 states and 15018 transitions. [2023-11-29 01:51:00,001 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 3 states have call successors, (34), 3 states have call predecessors, (34), 3 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2023-11-29 01:51:00,001 INFO L276 IsEmpty]: Start isEmpty. Operand 10106 states and 15018 transitions. [2023-11-29 01:51:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-29 01:51:00,030 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:51:00,030 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:51:00,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-29 01:51:00,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-29 01:51:00,231 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:51:00,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:51:00,232 INFO L85 PathProgramCache]: Analyzing trace with hash 701471654, now seen corresponding path program 1 times [2023-11-29 01:51:00,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:51:00,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008687598] [2023-11-29 01:51:00,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:00,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:51:00,661 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:51:00,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1618274289] [2023-11-29 01:51:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:51:00,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:51:00,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:51:00,662 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:51:00,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:51:02,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:51:02,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 5865 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-29 01:51:02,657 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:51:03,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-29 01:51:04,825 INFO L134 CoverageAnalysis]: Checked inductivity of 611 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2023-11-29 01:51:04,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:51:04,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:51:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008687598] [2023-11-29 01:51:04,826 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:51:04,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1618274289] [2023-11-29 01:51:04,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1618274289] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:51:04,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:51:04,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 01:51:04,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113289212] [2023-11-29 01:51:04,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:51:04,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 01:51:04,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:51:04,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 01:51:04,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:51:04,829 INFO L87 Difference]: Start difference. First operand 10106 states and 15018 transitions. Second operand has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 8 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2023-11-29 01:51:31,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:51:35,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:51:44,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:51:48,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:51:53,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:51:57,728 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:02,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.52s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:06,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:11,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:15,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:20,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:24,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:28,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:33,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:37,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:41,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:45,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:49,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:52:53,076 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:02,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:03,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:08,008 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:12,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:13,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:15,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:17,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:18,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:20,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:24,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:40,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:53:53,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:53:53,675 INFO L93 Difference]: Finished difference Result 21501 states and 32575 transitions. [2023-11-29 01:53:53,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 01:53:53,676 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 8 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) Word has length 287 [2023-11-29 01:53:53,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:53:53,719 INFO L225 Difference]: With dead ends: 21501 [2023-11-29 01:53:53,720 INFO L226 Difference]: Without dead ends: 11398 [2023-11-29 01:53:53,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 278 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2023-11-29 01:53:53,757 INFO L413 NwaCegarLoop]: 1438 mSDtfsCounter, 600 mSDsluCounter, 6271 mSDsCounter, 0 mSdLazyCounter, 4745 mSolverCounterSat, 391 mSolverCounterUnsat, 22 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 160.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 7709 SdHoareTripleChecker+Invalid, 5158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 391 IncrementalHoareTripleChecker+Valid, 4745 IncrementalHoareTripleChecker+Invalid, 22 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 167.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:53:53,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [696 Valid, 7709 Invalid, 5158 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [391 Valid, 4745 Invalid, 22 Unknown, 0 Unchecked, 167.1s Time] [2023-11-29 01:53:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11398 states. [2023-11-29 01:53:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11398 to 10618. [2023-11-29 01:53:54,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10618 states, 7391 states have (on average 1.4156406440265188) internal successors, (10463), 7549 states have internal predecessors, (10463), 2574 states have call successors, (2574), 593 states have call predecessors, (2574), 652 states have return successors, (2797), 2547 states have call predecessors, (2797), 2573 states have call successors, (2797) [2023-11-29 01:53:54,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10618 states to 10618 states and 15834 transitions. [2023-11-29 01:53:54,536 INFO L78 Accepts]: Start accepts. Automaton has 10618 states and 15834 transitions. Word has length 287 [2023-11-29 01:53:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:53:54,536 INFO L495 AbstractCegarLoop]: Abstraction has 10618 states and 15834 transitions. [2023-11-29 01:53:54,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.222222222222221) internal successors, (128), 9 states have internal predecessors, (128), 8 states have call successors, (43), 3 states have call predecessors, (43), 3 states have return successors, (42), 7 states have call predecessors, (42), 8 states have call successors, (42) [2023-11-29 01:53:54,537 INFO L276 IsEmpty]: Start isEmpty. Operand 10618 states and 15834 transitions. [2023-11-29 01:53:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-29 01:53:54,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:53:54,563 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:53:54,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 01:53:54,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2023-11-29 01:53:54,764 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:53:54,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:53:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash 594802433, now seen corresponding path program 1 times [2023-11-29 01:53:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:53:54,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990110081] [2023-11-29 01:53:54,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:53:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:53:55,112 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:53:55,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441414456] [2023-11-29 01:53:55,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:53:55,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:53:55,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:53:55,114 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:53:55,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:53:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:53:57,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 5990 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 01:53:57,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:53:57,808 INFO L134 CoverageAnalysis]: Checked inductivity of 608 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2023-11-29 01:53:57,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:53:57,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:53:57,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990110081] [2023-11-29 01:53:57,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:53:57,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441414456] [2023-11-29 01:53:57,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441414456] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:53:57,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:53:57,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:53:57,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673615687] [2023-11-29 01:53:57,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:53:57,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:53:57,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:53:57,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:53:57,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:53:57,811 INFO L87 Difference]: Start difference. First operand 10618 states and 15834 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-29 01:54:05,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:09,666 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:14,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:54:18,840 INFO L93 Difference]: Finished difference Result 21241 states and 31792 transitions. [2023-11-29 01:54:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:54:18,841 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 287 [2023-11-29 01:54:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:54:18,884 INFO L225 Difference]: With dead ends: 21241 [2023-11-29 01:54:18,884 INFO L226 Difference]: Without dead ends: 10626 [2023-11-29 01:54:18,911 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 284 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:54:18,912 INFO L413 NwaCegarLoop]: 1706 mSDtfsCounter, 24 mSDsluCounter, 1687 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 3393 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:54:18,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 3393 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 348 Invalid, 3 Unknown, 0 Unchecked, 20.5s Time] [2023-11-29 01:54:18,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10626 states. [2023-11-29 01:54:19,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10626 to 10626. [2023-11-29 01:54:19,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10626 states, 7399 states have (on average 1.415191242059738) internal successors, (10471), 7557 states have internal predecessors, (10471), 2574 states have call successors, (2574), 593 states have call predecessors, (2574), 652 states have return successors, (2797), 2547 states have call predecessors, (2797), 2573 states have call successors, (2797) [2023-11-29 01:54:19,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10626 states to 10626 states and 15842 transitions. [2023-11-29 01:54:19,557 INFO L78 Accepts]: Start accepts. Automaton has 10626 states and 15842 transitions. Word has length 287 [2023-11-29 01:54:19,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:54:19,558 INFO L495 AbstractCegarLoop]: Abstraction has 10626 states and 15842 transitions. [2023-11-29 01:54:19,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 3 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2023-11-29 01:54:19,558 INFO L276 IsEmpty]: Start isEmpty. Operand 10626 states and 15842 transitions. [2023-11-29 01:54:19,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2023-11-29 01:54:19,584 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:54:19,585 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:54:19,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 01:54:19,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:54:19,785 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:54:19,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:54:19,786 INFO L85 PathProgramCache]: Analyzing trace with hash -184806612, now seen corresponding path program 1 times [2023-11-29 01:54:19,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:54:19,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863425252] [2023-11-29 01:54:19,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:54:19,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:54:20,171 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:54:20,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023596110] [2023-11-29 01:54:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:54:20,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:54:20,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:54:20,173 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:54:20,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:54:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:54:22,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 6018 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 01:54:22,596 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:54:23,448 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2023-11-29 01:54:23,448 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:54:24,625 INFO L134 CoverageAnalysis]: Checked inductivity of 609 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2023-11-29 01:54:24,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:54:24,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863425252] [2023-11-29 01:54:24,625 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:54:24,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023596110] [2023-11-29 01:54:24,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023596110] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:54:24,626 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:54:24,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-29 01:54:24,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475593680] [2023-11-29 01:54:24,626 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:54:24,628 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:54:24,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:54:24,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:54:24,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:54:24,629 INFO L87 Difference]: Start difference. First operand 10626 states and 15842 transitions. Second operand has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 4 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2023-11-29 01:54:27,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:38,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:43,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:47,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:52,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:54:56,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:55:01,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.47s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:55:05,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:55:15,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:55:15,433 INFO L93 Difference]: Finished difference Result 21273 states and 31840 transitions. [2023-11-29 01:55:15,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:55:15,434 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 4 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) Word has length 288 [2023-11-29 01:55:15,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:55:15,469 INFO L225 Difference]: With dead ends: 21273 [2023-11-29 01:55:15,469 INFO L226 Difference]: Without dead ends: 10650 [2023-11-29 01:55:15,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 568 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=50, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:55:15,492 INFO L413 NwaCegarLoop]: 1706 mSDtfsCounter, 26 mSDsluCounter, 8369 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 10075 SdHoareTripleChecker+Invalid, 1043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:55:15,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 10075 Invalid, 1043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1035 Invalid, 7 Unknown, 0 Unchecked, 50.0s Time] [2023-11-29 01:55:15,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2023-11-29 01:55:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 10650. [2023-11-29 01:55:16,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10650 states, 7423 states have (on average 1.4138488481745926) internal successors, (10495), 7581 states have internal predecessors, (10495), 2574 states have call successors, (2574), 593 states have call predecessors, (2574), 652 states have return successors, (2797), 2547 states have call predecessors, (2797), 2573 states have call successors, (2797) [2023-11-29 01:55:16,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10650 states to 10650 states and 15866 transitions. [2023-11-29 01:55:16,061 INFO L78 Accepts]: Start accepts. Automaton has 10650 states and 15866 transitions. Word has length 288 [2023-11-29 01:55:16,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:55:16,061 INFO L495 AbstractCegarLoop]: Abstraction has 10650 states and 15866 transitions. [2023-11-29 01:55:16,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.75) internal successors, (166), 8 states have internal predecessors, (166), 4 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (55), 4 states have call predecessors, (55), 4 states have call successors, (55) [2023-11-29 01:55:16,062 INFO L276 IsEmpty]: Start isEmpty. Operand 10650 states and 15866 transitions. [2023-11-29 01:55:16,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-11-29 01:55:16,086 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:55:16,086 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:55:16,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:55:16,286 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:55:16,287 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:55:16,287 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:55:16,287 INFO L85 PathProgramCache]: Analyzing trace with hash -1276910104, now seen corresponding path program 1 times [2023-11-29 01:55:16,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:55:16,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814783575] [2023-11-29 01:55:16,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:55:16,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:55:16,604 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:55:16,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378791073] [2023-11-29 01:55:16,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:55:16,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:55:16,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:55:16,606 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:55:16,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:55:18,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:55:18,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 5886 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:55:18,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:55:18,906 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 566 trivial. 0 not checked. [2023-11-29 01:55:18,906 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:55:18,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:55:18,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814783575] [2023-11-29 01:55:18,907 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:55:18,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378791073] [2023-11-29 01:55:18,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378791073] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:55:18,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:55:18,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:55:18,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615751092] [2023-11-29 01:55:18,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:55:18,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 01:55:18,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:55:18,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 01:55:18,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 01:55:18,910 INFO L87 Difference]: Start difference. First operand 10650 states and 15866 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-11-29 01:55:20,597 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 [] [2023-11-29 01:55:27,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:55:32,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.51s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:55:36,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:55:42,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:55:42,072 INFO L93 Difference]: Finished difference Result 21321 states and 31912 transitions. [2023-11-29 01:55:42,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 01:55:42,073 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 290 [2023-11-29 01:55:42,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:55:42,102 INFO L225 Difference]: With dead ends: 21321 [2023-11-29 01:55:42,102 INFO L226 Difference]: Without dead ends: 10650 [2023-11-29 01:55:42,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:55:42,124 INFO L413 NwaCegarLoop]: 1703 mSDtfsCounter, 4 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 2 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5097 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.5s IncrementalHoareTripleChecker+Time [2023-11-29 01:55:42,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 5097 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 511 Invalid, 3 Unknown, 0 Unchecked, 22.5s Time] [2023-11-29 01:55:42,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10650 states. [2023-11-29 01:55:42,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10650 to 10650. [2023-11-29 01:55:42,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10650 states, 7423 states have (on average 1.412771116799138) internal successors, (10487), 7581 states have internal predecessors, (10487), 2574 states have call successors, (2574), 593 states have call predecessors, (2574), 652 states have return successors, (2797), 2547 states have call predecessors, (2797), 2573 states have call successors, (2797) [2023-11-29 01:55:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10650 states to 10650 states and 15858 transitions. [2023-11-29 01:55:42,679 INFO L78 Accepts]: Start accepts. Automaton has 10650 states and 15858 transitions. Word has length 290 [2023-11-29 01:55:42,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:55:42,679 INFO L495 AbstractCegarLoop]: Abstraction has 10650 states and 15858 transitions. [2023-11-29 01:55:42,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2023-11-29 01:55:42,680 INFO L276 IsEmpty]: Start isEmpty. Operand 10650 states and 15858 transitions. [2023-11-29 01:55:42,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2023-11-29 01:55:42,694 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:55:42,694 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:55:42,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:55:42,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:55:42,895 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 01:55:42,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:55:42,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1193623010, now seen corresponding path program 1 times [2023-11-29 01:55:42,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:55:42,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254236731] [2023-11-29 01:55:42,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:55:42,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:55:43,253 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-29 01:55:43,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [782392466] [2023-11-29 01:55:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:55:43,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:55:43,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:55:43,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:55:43,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_523bde8a-dce4-49ca-bb18-b8c0125c5b79/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:55:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:55:45,432 INFO L262 TraceCheckSpWp]: Trace formula consists of 5890 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-29 01:55:45,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:55:45,989 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2023-11-29 01:55:45,990 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:55:45,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:55:45,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254236731] [2023-11-29 01:55:45,990 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-29 01:55:45,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782392466] [2023-11-29 01:55:45,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782392466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:55:45,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:55:45,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 01:55:45,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306040827] [2023-11-29 01:55:45,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:55:45,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:55:45,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:55:45,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:55:45,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:55:45,993 INFO L87 Difference]: Start difference. First operand 10650 states and 15858 transitions. Second operand has 5 states, 5 states have (on average 27.0) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (43), 2 states have call predecessors, (43), 3 states have return successors, (42), 4 states have call predecessors, (42), 3 states have call successors, (42) [2023-11-29 01:55:56,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:56:00,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 01:56:05,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.53s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []