./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:38:08,180 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:38:08,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:38:08,214 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:38:08,214 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:38:08,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:38:08,217 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:38:08,221 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:38:08,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:38:08,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:38:08,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:38:08,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:38:08,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:38:08,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:38:08,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:38:08,241 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:38:08,242 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:38:08,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:38:08,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:38:08,246 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:38:08,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:38:08,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:38:08,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:38:08,258 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:38:08,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:38:08,272 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:38:08,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:38:08,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:38:08,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:38:08,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:38:08,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:38:08,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:38:08,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:38:08,282 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:38:08,283 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:38:08,283 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:38:08,284 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:38:08,284 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:38:08,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:38:08,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:38:08,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:38:08,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-19 07:38:08,332 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:38:08,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:38:08,333 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:38:08,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:38:08,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:38:08,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:38:08,335 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:38:08,335 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:38:08,335 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:38:08,336 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:38:08,337 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:38:08,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:38:08,337 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:38:08,337 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:38:08,338 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:38:08,338 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:38:08,338 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:38:08,338 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:38:08,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:38:08,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:38:08,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:38:08,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:38:08,340 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:38:08,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:38:08,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:38:08,342 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:38:08,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:38:08,343 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:38:08,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:38:08,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:38:08,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:38:08,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:08,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:38:08,344 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:38:08,345 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:38:08,345 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:38:08,345 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:38:08,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:38:08,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:38:08,346 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:38:08,346 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 [2022-11-19 07:38:08,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:38:08,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:38:08,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:38:08,631 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:38:08,632 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:38:08,633 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-11-19 07:38:08,701 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/data/848b03210/050bff1fb15a42e98d67b0fee9fab067/FLAGc95874629 [2022-11-19 07:38:09,608 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:38:09,609 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-11-19 07:38:09,659 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/data/848b03210/050bff1fb15a42e98d67b0fee9fab067/FLAGc95874629 [2022-11-19 07:38:10,097 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/data/848b03210/050bff1fb15a42e98d67b0fee9fab067 [2022-11-19 07:38:10,099 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:38:10,101 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:38:10,102 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:10,103 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:38:10,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:38:10,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:10" (1/1) ... [2022-11-19 07:38:10,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ac4420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:10, skipping insertion in model container [2022-11-19 07:38:10,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:10" (1/1) ... [2022-11-19 07:38:10,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:38:10,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:38:10,824 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-11-19 07:38:11,443 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i[155153,155166] [2022-11-19 07:38:12,449 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-19 07:38:12,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:12,540 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:38:12,633 WARN L1258 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-11-19 07:38:12,655 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i[155153,155166] [2022-11-19 07:38:13,145 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-19 07:38:13,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:13,241 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:38:13,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13 WrapperNode [2022-11-19 07:38:13,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:13,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:13,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:38:13,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:38:13,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,574 INFO L138 Inliner]: procedures = 242, calls = 2944, calls flagged for inlining = 95, calls inlined = 71, statements flattened = 4100 [2022-11-19 07:38:13,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:13,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:38:13,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:38:13,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:38:13,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,793 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,810 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:38:13,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:38:13,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:38:13,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:38:13,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (1/1) ... [2022-11-19 07:38:13,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:13,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:13,870 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:38:13,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:38:13,919 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-19 07:38:13,919 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-19 07:38:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2022-11-19 07:38:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2022-11-19 07:38:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2022-11-19 07:38:13,920 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2022-11-19 07:38:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:38:13,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:38:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-19 07:38:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-19 07:38:13,921 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-19 07:38:13,921 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-19 07:38:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-19 07:38:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-19 07:38:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2022-11-19 07:38:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2022-11-19 07:38:13,922 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2022-11-19 07:38:13,922 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2022-11-19 07:38:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-19 07:38:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-19 07:38:13,923 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-19 07:38:13,923 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-19 07:38:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2022-11-19 07:38:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2022-11-19 07:38:13,924 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-19 07:38:13,924 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-19 07:38:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:38:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:38:13,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-19 07:38:13,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-19 07:38:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-19 07:38:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-19 07:38:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2022-11-19 07:38:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2022-11-19 07:38:13,927 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2022-11-19 07:38:13,927 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2022-11-19 07:38:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-19 07:38:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-19 07:38:13,928 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-19 07:38:13,928 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-19 07:38:13,929 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2022-11-19 07:38:13,929 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2022-11-19 07:38:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:38:13,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:38:13,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-19 07:38:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-19 07:38:13,931 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2022-11-19 07:38:13,931 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2022-11-19 07:38:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-19 07:38:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-19 07:38:13,932 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-19 07:38:13,932 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-19 07:38:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:38:13,933 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:38:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-19 07:38:13,933 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-19 07:38:13,933 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2022-11-19 07:38:13,933 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2022-11-19 07:38:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure bulk_irq [2022-11-19 07:38:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure bulk_irq [2022-11-19 07:38:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-19 07:38:13,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-19 07:38:13,934 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-19 07:38:13,935 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-19 07:38:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-11-19 07:38:13,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-11-19 07:38:13,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:38:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-19 07:38:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-19 07:38:13,936 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-19 07:38:13,936 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-19 07:38:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:38:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-11-19 07:38:13,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-11-19 07:38:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-19 07:38:13,937 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-19 07:38:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-19 07:38:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_and_submit_int_urb [2022-11-19 07:38:13,938 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_and_submit_int_urb [2022-11-19 07:38:13,938 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-19 07:38:13,939 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-19 07:38:13,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 07:38:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-19 07:38:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-11-19 07:38:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-11-19 07:38:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2022-11-19 07:38:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2022-11-19 07:38:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-19 07:38:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-19 07:38:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:38:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:38:13,940 INFO L130 BoogieDeclarations]: Found specification of procedure fill_frame [2022-11-19 07:38:13,940 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_frame [2022-11-19 07:38:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2022-11-19 07:38:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2022-11-19 07:38:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2022-11-19 07:38:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2022-11-19 07:38:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-19 07:38:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-19 07:38:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:38:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-19 07:38:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-19 07:38:13,941 INFO L130 BoogieDeclarations]: Found specification of procedure isoc_irq [2022-11-19 07:38:13,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isoc_irq [2022-11-19 07:38:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-19 07:38:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-19 07:38:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2022-11-19 07:38:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2022-11-19 07:38:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2022-11-19 07:38:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2022-11-19 07:38:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-19 07:38:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-19 07:38:13,942 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-19 07:38:13,942 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2022-11-19 07:38:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:38:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-19 07:38:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-19 07:38:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-11-19 07:38:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-11-19 07:38:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-11-19 07:38:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-11-19 07:38:13,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2022-11-19 07:38:13,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2022-11-19 07:38:13,944 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2022-11-19 07:38:13,944 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2022-11-19 07:38:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:38:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:38:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:38:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 07:38:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 07:38:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 07:38:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 07:38:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-19 07:38:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-19 07:38:13,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 07:38:13,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-19 07:38:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:38:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:38:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:38:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-19 07:38:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-19 07:38:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-19 07:38:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-19 07:38:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:38:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2022-11-19 07:38:13,981 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2022-11-19 07:38:13,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:38:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-19 07:38:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-19 07:38:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-19 07:38:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-19 07:38:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:38:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-19 07:38:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2022-11-19 07:38:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2022-11-19 07:38:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:38:13,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:38:13,982 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:38:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-19 07:38:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-19 07:38:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-19 07:38:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2022-11-19 07:38:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2022-11-19 07:38:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2022-11-19 07:38:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2022-11-19 07:38:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-19 07:38:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-19 07:38:13,983 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-19 07:38:13,983 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-19 07:38:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:38:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:38:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-19 07:38:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-19 07:38:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-19 07:38:13,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-19 07:38:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:38:13,984 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:38:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-19 07:38:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2022-11-19 07:38:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2022-11-19 07:38:13,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:38:13,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:38:14,796 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:38:14,799 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:38:14,968 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-19 07:38:16,544 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-19 07:38:19,091 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:38:20,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:38:20,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-19 07:38:20,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:20 BoogieIcfgContainer [2022-11-19 07:38:20,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:38:20,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:38:20,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:38:20,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:38:20,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:10" (1/3) ... [2022-11-19 07:38:20,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a3dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:20, skipping insertion in model container [2022-11-19 07:38:20,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:13" (2/3) ... [2022-11-19 07:38:20,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20a3dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:20, skipping insertion in model container [2022-11-19 07:38:20,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:20" (3/3) ... [2022-11-19 07:38:20,326 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--usb--gspca--gspca_main.ko-entry_point.cil.out.i [2022-11-19 07:38:20,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:38:20,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-11-19 07:38:20,446 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:38:20,457 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5abd5fb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:38:20,457 INFO L358 AbstractCegarLoop]: Starting to check reachability of 98 error locations. [2022-11-19 07:38:20,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 1300 states, 834 states have (on average 1.4772182254196642) internal successors, (1232), 959 states have internal predecessors, (1232), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) [2022-11-19 07:38:20,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-19 07:38:20,505 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:20,506 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2022-11-19 07:38:20,507 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting gspca_vm_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:20,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:20,514 INFO L85 PathProgramCache]: Analyzing trace with hash -2047404163, now seen corresponding path program 1 times [2022-11-19 07:38:20,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:20,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088060851] [2022-11-19 07:38:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:20,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:21,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3123 trivial. 0 not checked. [2022-11-19 07:38:21,490 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:21,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088060851] [2022-11-19 07:38:21,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088060851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:21,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:21,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:21,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384617636] [2022-11-19 07:38:21,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:21,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:21,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:21,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:21,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:21,531 INFO L87 Difference]: Start difference. First operand has 1300 states, 834 states have (on average 1.4772182254196642) internal successors, (1232), 959 states have internal predecessors, (1232), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-19 07:38:24,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:24,374 INFO L93 Difference]: Finished difference Result 3699 states and 5118 transitions. [2022-11-19 07:38:24,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:24,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 259 [2022-11-19 07:38:24,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:24,423 INFO L225 Difference]: With dead ends: 3699 [2022-11-19 07:38:24,423 INFO L226 Difference]: Without dead ends: 2439 [2022-11-19 07:38:24,438 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:24,444 INFO L413 NwaCegarLoop]: 1829 mSDtfsCounter, 1756 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:24,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 3296 Invalid, 382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:38:24,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2022-11-19 07:38:24,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2348. [2022-11-19 07:38:24,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1593 states have (on average 1.470182046453233) internal successors, (2342), 1715 states have internal predecessors, (2342), 505 states have call successors, (505), 158 states have call predecessors, (505), 158 states have return successors, (505), 492 states have call predecessors, (505), 505 states have call successors, (505) [2022-11-19 07:38:24,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3352 transitions. [2022-11-19 07:38:24,679 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3352 transitions. Word has length 259 [2022-11-19 07:38:24,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:24,686 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 3352 transitions. [2022-11-19 07:38:24,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-19 07:38:24,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3352 transitions. [2022-11-19 07:38:24,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-19 07:38:24,696 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:24,697 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2022-11-19 07:38:24,697 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:38:24,698 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:24,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:24,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1895064319, now seen corresponding path program 1 times [2022-11-19 07:38:24,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:24,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768449646] [2022-11-19 07:38:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:24,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:25,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3123 trivial. 0 not checked. [2022-11-19 07:38:25,144 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:25,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768449646] [2022-11-19 07:38:25,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768449646] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:25,145 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:25,145 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:25,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905483171] [2022-11-19 07:38:25,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:25,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:25,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:25,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:25,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:25,148 INFO L87 Difference]: Start difference. First operand 2348 states and 3352 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-19 07:38:29,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:29,234 INFO L93 Difference]: Finished difference Result 6844 states and 9757 transitions. [2022-11-19 07:38:29,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:29,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 259 [2022-11-19 07:38:29,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:29,264 INFO L225 Difference]: With dead ends: 6844 [2022-11-19 07:38:29,265 INFO L226 Difference]: Without dead ends: 4581 [2022-11-19 07:38:29,277 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:29,278 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 1721 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:29,278 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 3252 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-19 07:38:29,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-11-19 07:38:29,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4492. [2022-11-19 07:38:29,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 3119 states have (on average 1.4745110612375762) internal successors, (4599), 3273 states have internal predecessors, (4599), 965 states have call successors, (965), 316 states have call predecessors, (965), 316 states have return successors, (965), 938 states have call predecessors, (965), 965 states have call successors, (965) [2022-11-19 07:38:29,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6529 transitions. [2022-11-19 07:38:29,542 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 6529 transitions. Word has length 259 [2022-11-19 07:38:29,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:29,544 INFO L495 AbstractCegarLoop]: Abstraction has 4492 states and 6529 transitions. [2022-11-19 07:38:29,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-19 07:38:29,545 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 6529 transitions. [2022-11-19 07:38:29,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-19 07:38:29,552 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:29,552 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2022-11-19 07:38:29,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:38:29,553 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:29,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:29,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1415148170, now seen corresponding path program 1 times [2022-11-19 07:38:29,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:29,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806488057] [2022-11-19 07:38:29,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:29,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-11-19 07:38:29,990 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:29,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806488057] [2022-11-19 07:38:29,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806488057] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:29,991 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:29,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:29,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866433764] [2022-11-19 07:38:29,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:29,992 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:29,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:29,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:29,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:29,993 INFO L87 Difference]: Start difference. First operand 4492 states and 6529 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-19 07:38:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:32,792 INFO L93 Difference]: Finished difference Result 12315 states and 17784 transitions. [2022-11-19 07:38:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:32,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) Word has length 283 [2022-11-19 07:38:32,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:32,835 INFO L225 Difference]: With dead ends: 12315 [2022-11-19 07:38:32,835 INFO L226 Difference]: Without dead ends: 7908 [2022-11-19 07:38:32,854 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:32,855 INFO L413 NwaCegarLoop]: 1782 mSDtfsCounter, 1357 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:32,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 3156 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:38:32,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-11-19 07:38:33,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7830. [2022-11-19 07:38:33,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7830 states, 5473 states have (on average 1.4708569340398319) internal successors, (8050), 5687 states have internal predecessors, (8050), 1664 states have call successors, (1664), 601 states have call predecessors, (1664), 601 states have return successors, (1664), 1613 states have call predecessors, (1664), 1664 states have call successors, (1664) [2022-11-19 07:38:33,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7830 states to 7830 states and 11378 transitions. [2022-11-19 07:38:33,287 INFO L78 Accepts]: Start accepts. Automaton has 7830 states and 11378 transitions. Word has length 283 [2022-11-19 07:38:33,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:33,288 INFO L495 AbstractCegarLoop]: Abstraction has 7830 states and 11378 transitions. [2022-11-19 07:38:33,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-19 07:38:33,288 INFO L276 IsEmpty]: Start isEmpty. Operand 7830 states and 11378 transitions. [2022-11-19 07:38:33,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-19 07:38:33,294 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:33,294 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 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] [2022-11-19 07:38:33,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:38:33,295 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:33,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:33,298 INFO L85 PathProgramCache]: Analyzing trace with hash -1884052222, now seen corresponding path program 1 times [2022-11-19 07:38:33,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:33,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134435025] [2022-11-19 07:38:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:33,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:33,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:33,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-11-19 07:38:33,637 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:33,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134435025] [2022-11-19 07:38:33,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134435025] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:33,638 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:33,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:33,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171216171] [2022-11-19 07:38:33,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:33,639 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:33,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:33,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:33,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:33,643 INFO L87 Difference]: Start difference. First operand 7830 states and 11378 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 07:38:38,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:38,099 INFO L93 Difference]: Finished difference Result 19822 states and 28780 transitions. [2022-11-19 07:38:38,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:38,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 287 [2022-11-19 07:38:38,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:38,159 INFO L225 Difference]: With dead ends: 19822 [2022-11-19 07:38:38,159 INFO L226 Difference]: Without dead ends: 12083 [2022-11-19 07:38:38,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:38,190 INFO L413 NwaCegarLoop]: 2834 mSDtfsCounter, 1619 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:38,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 4247 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-19 07:38:38,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12083 states. [2022-11-19 07:38:38,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12083 to 11995. [2022-11-19 07:38:38,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11995 states, 8470 states have (on average 1.4739079102715467) internal successors, (12484), 8748 states have internal predecessors, (12484), 2520 states have call successors, (2520), 913 states have call predecessors, (2520), 913 states have return successors, (2520), 2441 states have call predecessors, (2520), 2520 states have call successors, (2520) [2022-11-19 07:38:38,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11995 states to 11995 states and 17524 transitions. [2022-11-19 07:38:38,913 INFO L78 Accepts]: Start accepts. Automaton has 11995 states and 17524 transitions. Word has length 287 [2022-11-19 07:38:38,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:38,917 INFO L495 AbstractCegarLoop]: Abstraction has 11995 states and 17524 transitions. [2022-11-19 07:38:38,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-19 07:38:38,919 INFO L276 IsEmpty]: Start isEmpty. Operand 11995 states and 17524 transitions. [2022-11-19 07:38:38,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-19 07:38:38,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:38,926 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-11-19 07:38:38,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:38:38,926 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting gspca_vm_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:38,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:38,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1784485689, now seen corresponding path program 1 times [2022-11-19 07:38:38,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:38,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758058896] [2022-11-19 07:38:38,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:38,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:39,414 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-19 07:38:39,414 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:39,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758058896] [2022-11-19 07:38:39,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758058896] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:39,415 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:39,415 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:39,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675476496] [2022-11-19 07:38:39,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:39,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:39,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:39,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:39,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:39,417 INFO L87 Difference]: Start difference. First operand 11995 states and 17524 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:43,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:43,031 INFO L93 Difference]: Finished difference Result 29879 states and 43596 transitions. [2022-11-19 07:38:43,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:43,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 317 [2022-11-19 07:38:43,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:43,109 INFO L225 Difference]: With dead ends: 29879 [2022-11-19 07:38:43,109 INFO L226 Difference]: Without dead ends: 17980 [2022-11-19 07:38:43,149 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:43,151 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 1606 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:43,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 3417 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-19 07:38:43,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17980 states. [2022-11-19 07:38:44,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17980 to 17889. [2022-11-19 07:38:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17889 states, 12681 states have (on average 1.473464237836133) internal successors, (18685), 13053 states have internal predecessors, (18685), 3750 states have call successors, (3750), 1366 states have call predecessors, (3750), 1366 states have return successors, (3750), 3631 states have call predecessors, (3750), 3750 states have call successors, (3750) [2022-11-19 07:38:44,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17889 states to 17889 states and 26185 transitions. [2022-11-19 07:38:44,159 INFO L78 Accepts]: Start accepts. Automaton has 17889 states and 26185 transitions. Word has length 317 [2022-11-19 07:38:44,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:44,160 INFO L495 AbstractCegarLoop]: Abstraction has 17889 states and 26185 transitions. [2022-11-19 07:38:44,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:44,160 INFO L276 IsEmpty]: Start isEmpty. Operand 17889 states and 26185 transitions. [2022-11-19 07:38:44,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-19 07:38:44,165 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:44,166 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-11-19 07:38:44,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:38:44,166 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:44,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:44,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1936825533, now seen corresponding path program 1 times [2022-11-19 07:38:44,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:44,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376153197] [2022-11-19 07:38:44,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:44,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:44,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4518 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2022-11-19 07:38:44,740 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:44,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376153197] [2022-11-19 07:38:44,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376153197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:44,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:44,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:38:44,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6651356] [2022-11-19 07:38:44,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:44,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:44,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:44,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:44,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:44,743 INFO L87 Difference]: Start difference. First operand 17889 states and 26185 transitions. Second operand has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:48,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:48,103 INFO L93 Difference]: Finished difference Result 23968 states and 34983 transitions. [2022-11-19 07:38:48,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:48,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 317 [2022-11-19 07:38:48,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:48,285 INFO L225 Difference]: With dead ends: 23968 [2022-11-19 07:38:48,286 INFO L226 Difference]: Without dead ends: 23958 [2022-11-19 07:38:48,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:48,294 INFO L413 NwaCegarLoop]: 1821 mSDtfsCounter, 1699 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:48,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 3242 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-19 07:38:48,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23958 states. [2022-11-19 07:38:49,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23958 to 23876. [2022-11-19 07:38:49,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23876 states, 16961 states have (on average 1.4703732091268205) internal successors, (24939), 17427 states have internal predecessors, (24939), 4998 states have call successors, (4998), 1825 states have call predecessors, (4998), 1825 states have return successors, (4998), 4839 states have call predecessors, (4998), 4998 states have call successors, (4998) [2022-11-19 07:38:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23876 states to 23876 states and 34935 transitions. [2022-11-19 07:38:49,435 INFO L78 Accepts]: Start accepts. Automaton has 23876 states and 34935 transitions. Word has length 317 [2022-11-19 07:38:49,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:49,437 INFO L495 AbstractCegarLoop]: Abstraction has 23876 states and 34935 transitions. [2022-11-19 07:38:49,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:49,438 INFO L276 IsEmpty]: Start isEmpty. Operand 23876 states and 34935 transitions. [2022-11-19 07:38:49,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-19 07:38:49,445 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:49,445 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-11-19 07:38:49,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:38:49,446 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting gspca_vm_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:49,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:49,446 INFO L85 PathProgramCache]: Analyzing trace with hash -266775617, now seen corresponding path program 1 times [2022-11-19 07:38:49,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:49,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314645890] [2022-11-19 07:38:49,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:49,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:50,535 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-19 07:38:50,535 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:50,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314645890] [2022-11-19 07:38:50,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314645890] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:38:50,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791595179] [2022-11-19 07:38:50,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:50,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:50,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:50,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:50,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:38:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:51,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 3641 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:38:51,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 1283 proven. 0 refuted. 0 times theorem prover too weak. 3234 trivial. 0 not checked. [2022-11-19 07:38:51,746 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:38:51,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791595179] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:51,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:38:51,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-19 07:38:51,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085505683] [2022-11-19 07:38:51,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:51,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:38:51,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:51,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:38:51,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:38:51,749 INFO L87 Difference]: Start difference. First operand 23876 states and 34935 transitions. Second operand has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:56,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:38:57,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:57,334 INFO L93 Difference]: Finished difference Result 47712 states and 70023 transitions. [2022-11-19 07:38:57,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:38:57,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) Word has length 318 [2022-11-19 07:38:57,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:57,438 INFO L225 Difference]: With dead ends: 47712 [2022-11-19 07:38:57,438 INFO L226 Difference]: Without dead ends: 23901 [2022-11-19 07:38:57,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:38:57,494 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 1 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:57,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4692 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-11-19 07:38:57,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23901 states. [2022-11-19 07:38:58,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23901 to 23901. [2022-11-19 07:38:58,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23901 states, 16986 states have (on average 1.46968091369363) internal successors, (24964), 17452 states have internal predecessors, (24964), 4998 states have call successors, (4998), 1825 states have call predecessors, (4998), 1825 states have return successors, (4998), 4839 states have call predecessors, (4998), 4998 states have call successors, (4998) [2022-11-19 07:38:58,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23901 states to 23901 states and 34960 transitions. [2022-11-19 07:38:58,797 INFO L78 Accepts]: Start accepts. Automaton has 23901 states and 34960 transitions. Word has length 318 [2022-11-19 07:38:58,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:58,798 INFO L495 AbstractCegarLoop]: Abstraction has 23901 states and 34960 transitions. [2022-11-19 07:38:58,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-19 07:38:58,798 INFO L276 IsEmpty]: Start isEmpty. Operand 23901 states and 34960 transitions. [2022-11-19 07:38:58,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-19 07:38:58,803 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:58,803 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 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] [2022-11-19 07:38:58,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:38:59,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:59,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting gspca_vm_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-19 07:38:59,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:59,016 INFO L85 PathProgramCache]: Analyzing trace with hash -247678465, now seen corresponding path program 1 times [2022-11-19 07:38:59,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:59,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532570632] [2022-11-19 07:38:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:59,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:00,185 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4516 trivial. 0 not checked. [2022-11-19 07:39:00,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:00,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532570632] [2022-11-19 07:39:00,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532570632] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:39:00,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589065242] [2022-11-19 07:39:00,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:00,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:00,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:00,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:39:00,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62c4603f-b206-4658-88e6-c8589dc8a2e5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:39:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:01,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 3671 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:39:01,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:01,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 1283 proven. 3 refuted. 0 times theorem prover too weak. 3236 trivial. 0 not checked. [2022-11-19 07:39:01,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:39:01,661 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4516 trivial. 0 not checked. [2022-11-19 07:39:01,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589065242] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:39:01,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1831895283] [2022-11-19 07:39:01,690 INFO L159 IcfgInterpreter]: Started Sifa with 126 locations of interest [2022-11-19 07:39:01,690 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:39:01,695 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:39:01,701 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:39:01,701 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:39:07,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:07,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:07,170 INFO L217 Elim1Store]: Index analysis took 385 ms [2022-11-19 07:39:27,017 WARN L233 SmtUtils]: Spent 19.81s on a formula simplification. DAG size of input: 1455 DAG size of output: 727 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:39:27,021 INFO L321 Elim1Store]: treesize reduction 3442, result has 25.5 percent of original size [2022-11-19 07:39:27,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 94 select indices, 94 select index equivalence classes, 4190 disjoint index pairs (out of 4371 index pairs), introduced 94 new quantified variables, introduced 273 case distinctions, treesize of input 484 treesize of output 1477 [2022-11-19 07:39:30,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:30,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:30,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 91 select indices, 91 select index equivalence classes, 4280 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 0 case distinctions, treesize of input 465 treesize of output 739 [2022-11-19 07:39:45,582 INFO L217 Elim1Store]: Index analysis took 129 ms [2022-11-19 07:39:45,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 199 select indices, 199 select index equivalence classes, 17797 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 0 case distinctions, treesize of input 1772 treesize of output 598 [2022-11-19 07:39:47,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:47,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:47,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 93 select indices, 93 select index equivalence classes, 4280 disjoint index pairs (out of 4278 index pairs), introduced 93 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 280 [2022-11-19 07:39:47,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:47,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:39:47,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 94 select indices, 94 select index equivalence classes, 4371 disjoint index pairs (out of 4371 index pairs), introduced 94 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 283 [2022-11-19 07:40:02,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 199 select indices, 199 select index equivalence classes, 17797 disjoint index pairs (out of 19701 index pairs), introduced 199 new quantified variables, introduced 0 case distinctions, treesize of input 1772 treesize of output 598 [2022-11-19 07:40:02,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:02,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:02,877 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 94 select indices, 94 select index equivalence classes, 4371 disjoint index pairs (out of 4371 index pairs), introduced 94 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 283 [2022-11-19 07:40:03,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:03,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:03,503 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 93 select indices, 93 select index equivalence classes, 4280 disjoint index pairs (out of 4278 index pairs), introduced 93 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 280