./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 4e7fbc69 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_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/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_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW --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-4e7fbc6 [2022-11-23 15:31:41,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:31:41,229 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:31:41,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:31:41,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:31:41,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:31:41,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:31:41,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:31:41,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:31:41,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:31:41,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:31:41,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:31:41,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:31:41,260 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:31:41,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:31:41,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:31:41,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:31:41,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:31:41,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:31:41,269 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:31:41,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:31:41,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:31:41,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:31:41,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:31:41,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:31:41,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:31:41,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:31:41,291 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:31:41,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:31:41,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:31:41,293 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:31:41,293 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:31:41,294 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:31:41,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:31:41,296 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:31:41,296 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:31:41,297 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:31:41,297 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:31:41,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:31:41,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:31:41,299 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:31:41,300 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-23 15:31:41,322 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:31:41,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:31:41,323 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:31:41,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:31:41,324 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:31:41,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:31:41,325 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:31:41,325 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:31:41,325 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:31:41,326 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:31:41,326 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:31:41,326 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:31:41,326 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:31:41,327 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:31:41,327 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:31:41,327 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:31:41,327 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:31:41,328 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:31:41,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:31:41,329 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 15:31:41,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:31:41,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:31:41,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:31:41,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:31:41,330 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:31:41,330 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 15:31:41,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:31:41,330 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:31:41,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:31:41,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:31:41,331 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:31:41,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:31:41,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:31:41,332 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:31:41,332 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:31:41,332 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:31:41,332 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:31:41,333 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:31:41,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:31:41,333 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:31:41,333 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_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 [2022-11-23 15:31:41,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:31:41,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:31:41,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:31:41,670 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:31:41,671 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:31:41,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/../../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 [2022-11-23 15:31:44,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:31:45,619 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:31:45,620 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/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 [2022-11-23 15:31:45,666 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/data/c2dd7010d/9a67bf45ea3846f288f69385221221ee/FLAG906735e6f [2022-11-23 15:31:45,689 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/data/c2dd7010d/9a67bf45ea3846f288f69385221221ee [2022-11-23 15:31:45,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:31:45,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:31:45,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:31:45,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:31:45,706 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:31:45,707 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:45" (1/1) ... [2022-11-23 15:31:45,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@806d47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:45, skipping insertion in model container [2022-11-23 15:31:45,709 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:31:45" (1/1) ... [2022-11-23 15:31:45,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:31:45,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:31:46,447 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-11-23 15:31:46,906 WARN L237 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_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/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] [2022-11-23 15:31:47,835 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-23 15:31:47,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:31:47,925 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:31:48,026 WARN L1259 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-11-23 15:31:48,049 WARN L237 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_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/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] [2022-11-23 15:31:48,624 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-23 15:31:48,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:31:48,744 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:31:48,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48 WrapperNode [2022-11-23 15:31:48,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:31:48,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:31:48,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:31:48,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:31:48,756 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:48,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,020 INFO L138 Inliner]: procedures = 242, calls = 2944, calls flagged for inlining = 95, calls inlined = 71, statements flattened = 4117 [2022-11-23 15:31:49,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:31:49,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:31:49,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:31:49,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:31:49,032 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,332 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:31:49,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:31:49,388 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:31:49,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:31:49,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (1/1) ... [2022-11-23 15:31:49,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:31:49,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:31:49,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:31:49,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:31:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-23 15:31:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-23 15:31:49,483 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2022-11-23 15:31:49,483 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2022-11-23 15:31:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2022-11-23 15:31:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2022-11-23 15:31:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 15:31:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 15:31:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 15:31:49,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 15:31:49,484 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-23 15:31:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-23 15:31:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-23 15:31:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-23 15:31:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2022-11-23 15:31:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2022-11-23 15:31:49,485 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2022-11-23 15:31:49,485 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2022-11-23 15:31:49,486 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-23 15:31:49,486 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-23 15:31:49,487 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-23 15:31:49,487 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-23 15:31:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2022-11-23 15:31:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2022-11-23 15:31:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-23 15:31:49,488 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-23 15:31:49,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 15:31:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 15:31:49,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-23 15:31:49,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-23 15:31:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-23 15:31:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-23 15:31:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2022-11-23 15:31:49,490 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2022-11-23 15:31:49,490 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2022-11-23 15:31:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2022-11-23 15:31:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-23 15:31:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-23 15:31:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-23 15:31:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-23 15:31:49,491 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2022-11-23 15:31:49,491 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2022-11-23 15:31:49,492 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-23 15:31:49,492 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-23 15:31:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-23 15:31:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-23 15:31:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2022-11-23 15:31:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2022-11-23 15:31:49,493 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-23 15:31:49,493 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-23 15:31:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-23 15:31:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-23 15:31:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 15:31:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 15:31:49,494 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-23 15:31:49,494 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-23 15:31:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2022-11-23 15:31:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2022-11-23 15:31:49,495 INFO L130 BoogieDeclarations]: Found specification of procedure bulk_irq [2022-11-23 15:31:49,495 INFO L138 BoogieDeclarations]: Found implementation of procedure bulk_irq [2022-11-23 15:31:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-23 15:31:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-23 15:31:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-23 15:31:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-23 15:31:49,496 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-11-23 15:31:49,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-11-23 15:31:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 15:31:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-23 15:31:49,497 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-23 15:31:49,497 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-23 15:31:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-23 15:31:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 15:31:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-11-23 15:31:49,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-11-23 15:31:49,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 15:31:49,499 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-23 15:31:49,499 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-23 15:31:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_and_submit_int_urb [2022-11-23 15:31:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_and_submit_int_urb [2022-11-23 15:31:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 15:31:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 15:31:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-23 15:31:49,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-23 15:31:49,500 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-11-23 15:31:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-11-23 15:31:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2022-11-23 15:31:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2022-11-23 15:31:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-23 15:31:49,501 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-23 15:31:49,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 15:31:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 15:31:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure fill_frame [2022-11-23 15:31:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_frame [2022-11-23 15:31:49,502 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2022-11-23 15:31:49,502 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2022-11-23 15:31:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2022-11-23 15:31:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2022-11-23 15:31:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-23 15:31:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-23 15:31:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 15:31:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-23 15:31:49,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-23 15:31:49,503 INFO L130 BoogieDeclarations]: Found specification of procedure isoc_irq [2022-11-23 15:31:49,504 INFO L138 BoogieDeclarations]: Found implementation of procedure isoc_irq [2022-11-23 15:31:49,505 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-23 15:31:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-23 15:31:49,508 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2022-11-23 15:31:49,508 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2022-11-23 15:31:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2022-11-23 15:31:49,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2022-11-23 15:31:49,510 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-23 15:31:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-23 15:31:49,512 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-23 15:31:49,512 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2022-11-23 15:31:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 15:31:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-23 15:31:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-23 15:31:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-11-23 15:31:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-11-23 15:31:49,517 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-11-23 15:31:49,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-11-23 15:31:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2022-11-23 15:31:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2022-11-23 15:31:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2022-11-23 15:31:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2022-11-23 15:31:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 15:31:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 15:31:49,518 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 15:31:49,518 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-23 15:31:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-23 15:31:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-23 15:31:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-23 15:31:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-23 15:31:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-23 15:31:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:31:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-23 15:31:49,519 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 15:31:49,519 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 15:31:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 15:31:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-23 15:31:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-23 15:31:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-23 15:31:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-23 15:31:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 15:31:49,520 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2022-11-23 15:31:49,520 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2022-11-23 15:31:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:31:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-23 15:31:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-23 15:31:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 15:31:49,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 15:31:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 15:31:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-23 15:31:49,521 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2022-11-23 15:31:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2022-11-23 15:31:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:31:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 15:31:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:31:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 15:31:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-23 15:31:49,522 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-23 15:31:49,522 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2022-11-23 15:31:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2022-11-23 15:31:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2022-11-23 15:31:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2022-11-23 15:31:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-23 15:31:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-23 15:31:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-23 15:31:49,523 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-23 15:31:49,523 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:31:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-23 15:31:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-23 15:31:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-23 15:31:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-23 15:31:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-23 15:31:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:31:49,524 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 15:31:49,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-23 15:31:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2022-11-23 15:31:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2022-11-23 15:31:49,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:31:49,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:31:50,463 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:31:50,466 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:31:50,608 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 15:31:52,590 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-23 15:31:55,252 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:31:56,531 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:31:56,532 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 15:31:56,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:31:56 BoogieIcfgContainer [2022-11-23 15:31:56,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:31:56,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:31:56,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:31:56,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:31:56,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:31:45" (1/3) ... [2022-11-23 15:31:56,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7817f9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:31:56, skipping insertion in model container [2022-11-23 15:31:56,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:31:48" (2/3) ... [2022-11-23 15:31:56,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7817f9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:31:56, skipping insertion in model container [2022-11-23 15:31:56,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:31:56" (3/3) ... [2022-11-23 15:31:56,551 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 [2022-11-23 15:31:56,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:31:56,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 100 error locations. [2022-11-23 15:31:56,687 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:31:56,697 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;@705d81e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:31:56,697 INFO L358 AbstractCegarLoop]: Starting to check reachability of 100 error locations. [2022-11-23 15:31:56,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 1306 states, 838 states have (on average 1.4797136038186158) internal successors, (1240), 965 states have internal predecessors, (1240), 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) [2022-11-23 15:31:56,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-23 15:31:56,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:31:56,745 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] [2022-11-23 15:31:56,746 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 97 more)] === [2022-11-23 15:31:56,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:31:56,751 INFO L85 PathProgramCache]: Analyzing trace with hash -655807714, now seen corresponding path program 1 times [2022-11-23 15:31:56,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:31:56,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49091962] [2022-11-23 15:31:56,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:31:56,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:31:57,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:31:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3123 trivial. 0 not checked. [2022-11-23 15:31:57,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:31:57,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49091962] [2022-11-23 15:31:57,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49091962] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:31:57,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:31:57,791 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:31:57,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715904128] [2022-11-23 15:31:57,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:31:57,800 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:31:57,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:31:57,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:31:57,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:31:57,846 INFO L87 Difference]: Start difference. First operand has 1306 states, 838 states have (on average 1.4797136038186158) internal successors, (1240), 965 states have internal predecessors, (1240), 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) [2022-11-23 15:32:00,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:00,781 INFO L93 Difference]: Finished difference Result 3717 states and 5142 transitions. [2022-11-23 15:32:00,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:00,784 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 [2022-11-23 15:32:00,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:00,822 INFO L225 Difference]: With dead ends: 3717 [2022-11-23 15:32:00,837 INFO L226 Difference]: Without dead ends: 2451 [2022-11-23 15:32:00,852 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 [2022-11-23 15:32:00,861 INFO L413 NwaCegarLoop]: 1837 mSDtfsCounter, 1764 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1764 SdHoareTripleChecker+Valid, 3312 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:00,862 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1764 Valid, 3312 Invalid, 382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-11-23 15:32:00,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2451 states. [2022-11-23 15:32:01,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2451 to 2358. [2022-11-23 15:32:01,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2358 states, 1601 states have (on average 1.4728294815740162) internal successors, (2358), 1725 states have internal predecessors, (2358), 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) [2022-11-23 15:32:01,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2358 states to 2358 states and 3368 transitions. [2022-11-23 15:32:01,107 INFO L78 Accepts]: Start accepts. Automaton has 2358 states and 3368 transitions. Word has length 259 [2022-11-23 15:32:01,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:01,113 INFO L495 AbstractCegarLoop]: Abstraction has 2358 states and 3368 transitions. [2022-11-23 15:32:01,114 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) [2022-11-23 15:32:01,114 INFO L276 IsEmpty]: Start isEmpty. Operand 2358 states and 3368 transitions. [2022-11-23 15:32:01,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-23 15:32:01,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:01,125 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] [2022-11-23 15:32:01,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:32:01,126 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 97 more)] === [2022-11-23 15:32:01,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:01,127 INFO L85 PathProgramCache]: Analyzing trace with hash -503473450, now seen corresponding path program 1 times [2022-11-23 15:32:01,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:01,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285255610] [2022-11-23 15:32:01,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:01,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:01,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:01,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3123 trivial. 0 not checked. [2022-11-23 15:32:01,584 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:01,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285255610] [2022-11-23 15:32:01,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285255610] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:01,587 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:01,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:32:01,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844468357] [2022-11-23 15:32:01,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:01,590 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:01,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:01,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:01,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:01,591 INFO L87 Difference]: Start difference. First operand 2358 states and 3368 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) [2022-11-23 15:32:05,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:05,034 INFO L93 Difference]: Finished difference Result 6874 states and 9805 transitions. [2022-11-23 15:32:05,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:05,035 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 [2022-11-23 15:32:05,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:05,061 INFO L225 Difference]: With dead ends: 6874 [2022-11-23 15:32:05,061 INFO L226 Difference]: Without dead ends: 4601 [2022-11-23 15:32:05,071 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 [2022-11-23 15:32:05,072 INFO L413 NwaCegarLoop]: 1824 mSDtfsCounter, 1729 mSDsluCounter, 1444 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1729 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:05,072 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1729 Valid, 3268 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-11-23 15:32:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4601 states. [2022-11-23 15:32:05,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4601 to 4510. [2022-11-23 15:32:05,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4510 states, 3135 states have (on average 1.4771929824561403) internal successors, (4631), 3291 states have internal predecessors, (4631), 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) [2022-11-23 15:32:05,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4510 states to 4510 states and 6561 transitions. [2022-11-23 15:32:05,283 INFO L78 Accepts]: Start accepts. Automaton has 4510 states and 6561 transitions. Word has length 259 [2022-11-23 15:32:05,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:05,285 INFO L495 AbstractCegarLoop]: Abstraction has 4510 states and 6561 transitions. [2022-11-23 15:32:05,285 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) [2022-11-23 15:32:05,286 INFO L276 IsEmpty]: Start isEmpty. Operand 4510 states and 6561 transitions. [2022-11-23 15:32:05,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-23 15:32:05,292 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:05,293 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] [2022-11-23 15:32:05,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:32:05,293 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 97 more)] === [2022-11-23 15:32:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1562465527, now seen corresponding path program 1 times [2022-11-23 15:32:05,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:05,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300989146] [2022-11-23 15:32:05,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:05,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:05,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:05,701 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-11-23 15:32:05,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:05,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300989146] [2022-11-23 15:32:05,702 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300989146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:05,702 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:05,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:32:05,702 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671151044] [2022-11-23 15:32:05,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:05,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:05,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:05,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:05,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:05,704 INFO L87 Difference]: Start difference. First operand 4510 states and 6561 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) [2022-11-23 15:32:08,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:08,844 INFO L93 Difference]: Finished difference Result 12361 states and 17864 transitions. [2022-11-23 15:32:08,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:08,845 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 [2022-11-23 15:32:08,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:08,890 INFO L225 Difference]: With dead ends: 12361 [2022-11-23 15:32:08,890 INFO L226 Difference]: Without dead ends: 7936 [2022-11-23 15:32:08,910 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 [2022-11-23 15:32:08,915 INFO L413 NwaCegarLoop]: 1790 mSDtfsCounter, 1361 mSDsluCounter, 1382 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1361 SdHoareTripleChecker+Valid, 3172 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:08,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1361 Valid, 3172 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-23 15:32:08,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7936 states. [2022-11-23 15:32:09,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7936 to 7856. [2022-11-23 15:32:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7856 states, 5497 states have (on average 1.4731671820993268) internal successors, (8098), 5713 states have internal predecessors, (8098), 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) [2022-11-23 15:32:09,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7856 states to 7856 states and 11426 transitions. [2022-11-23 15:32:09,472 INFO L78 Accepts]: Start accepts. Automaton has 7856 states and 11426 transitions. Word has length 283 [2022-11-23 15:32:09,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:09,473 INFO L495 AbstractCegarLoop]: Abstraction has 7856 states and 11426 transitions. [2022-11-23 15:32:09,473 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) [2022-11-23 15:32:09,473 INFO L276 IsEmpty]: Start isEmpty. Operand 7856 states and 11426 transitions. [2022-11-23 15:32:09,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2022-11-23 15:32:09,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:09,481 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, 1, 1] [2022-11-23 15:32:09,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:32:09,482 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 97 more)] === [2022-11-23 15:32:09,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:09,485 INFO L85 PathProgramCache]: Analyzing trace with hash -312257645, now seen corresponding path program 1 times [2022-11-23 15:32:09,485 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:09,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531064745] [2022-11-23 15:32:09,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:09,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-11-23 15:32:09,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:09,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531064745] [2022-11-23 15:32:09,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531064745] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:09,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:09,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:32:09,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058850876] [2022-11-23 15:32:09,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:09,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:09,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:09,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:09,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:09,943 INFO L87 Difference]: Start difference. First operand 7856 states and 11426 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-23 15:32:14,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:14,456 INFO L93 Difference]: Finished difference Result 19892 states and 28908 transitions. [2022-11-23 15:32:14,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:14,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) Word has length 289 [2022-11-23 15:32:14,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:14,550 INFO L225 Difference]: With dead ends: 19892 [2022-11-23 15:32:14,550 INFO L226 Difference]: Without dead ends: 12127 [2022-11-23 15:32:14,583 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 [2022-11-23 15:32:14,587 INFO L413 NwaCegarLoop]: 2844 mSDtfsCounter, 1627 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 4265 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:14,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1627 Valid, 4265 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-23 15:32:14,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12127 states. [2022-11-23 15:32:15,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12127 to 12037. [2022-11-23 15:32:15,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12037 states, 8510 states have (on average 1.4763807285546415) internal successors, (12564), 8790 states have internal predecessors, (12564), 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) [2022-11-23 15:32:15,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12037 states to 12037 states and 17604 transitions. [2022-11-23 15:32:15,203 INFO L78 Accepts]: Start accepts. Automaton has 12037 states and 17604 transitions. Word has length 289 [2022-11-23 15:32:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:15,208 INFO L495 AbstractCegarLoop]: Abstraction has 12037 states and 17604 transitions. [2022-11-23 15:32:15,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 2 states have call predecessors, (46), 2 states have call successors, (46) [2022-11-23 15:32:15,209 INFO L276 IsEmpty]: Start isEmpty. Operand 12037 states and 17604 transitions. [2022-11-23 15:32:15,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-23 15:32:15,215 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:15,215 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] [2022-11-23 15:32:15,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:32:15,216 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 97 more)] === [2022-11-23 15:32:15,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:15,216 INFO L85 PathProgramCache]: Analyzing trace with hash -585063410, now seen corresponding path program 1 times [2022-11-23 15:32:15,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:15,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230423612] [2022-11-23 15:32:15,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:15,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:15,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:15,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-23 15:32:15,759 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:15,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230423612] [2022-11-23 15:32:15,760 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230423612] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:15,760 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:15,760 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:32:15,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190367688] [2022-11-23 15:32:15,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:15,761 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:15,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:15,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:15,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:15,762 INFO L87 Difference]: Start difference. First operand 12037 states and 17604 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) [2022-11-23 15:32:19,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:19,068 INFO L93 Difference]: Finished difference Result 29985 states and 43796 transitions. [2022-11-23 15:32:19,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:19,069 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 [2022-11-23 15:32:19,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:19,156 INFO L225 Difference]: With dead ends: 29985 [2022-11-23 15:32:19,157 INFO L226 Difference]: Without dead ends: 18044 [2022-11-23 15:32:19,209 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 [2022-11-23 15:32:19,212 INFO L413 NwaCegarLoop]: 2076 mSDtfsCounter, 1614 mSDsluCounter, 1562 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 3638 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:19,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 3638 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-23 15:32:19,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18044 states. [2022-11-23 15:32:20,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18044 to 17951. [2022-11-23 15:32:20,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17951 states, 12741 states have (on average 1.4759438034691155) internal successors, (18805), 13115 states have internal predecessors, (18805), 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) [2022-11-23 15:32:20,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17951 states to 17951 states and 26305 transitions. [2022-11-23 15:32:20,262 INFO L78 Accepts]: Start accepts. Automaton has 17951 states and 26305 transitions. Word has length 317 [2022-11-23 15:32:20,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:20,263 INFO L495 AbstractCegarLoop]: Abstraction has 17951 states and 26305 transitions. [2022-11-23 15:32:20,263 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) [2022-11-23 15:32:20,263 INFO L276 IsEmpty]: Start isEmpty. Operand 17951 states and 26305 transitions. [2022-11-23 15:32:20,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-23 15:32:20,271 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:20,272 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] [2022-11-23 15:32:20,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:32:20,272 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 97 more)] === [2022-11-23 15:32:20,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash -432729146, now seen corresponding path program 1 times [2022-11-23 15:32:20,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:20,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323949927] [2022-11-23 15:32:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:20,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:20,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:20,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4518 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2022-11-23 15:32:20,818 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:20,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323949927] [2022-11-23 15:32:20,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323949927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:20,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:32:20,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:32:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [577433652] [2022-11-23 15:32:20,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:20,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:32:20,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:20,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:32:20,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:32:20,821 INFO L87 Difference]: Start difference. First operand 17951 states and 26305 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) [2022-11-23 15:32:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:24,054 INFO L93 Difference]: Finished difference Result 24052 states and 35143 transitions. [2022-11-23 15:32:24,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:32:24,055 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 [2022-11-23 15:32:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:24,177 INFO L225 Difference]: With dead ends: 24052 [2022-11-23 15:32:24,177 INFO L226 Difference]: Without dead ends: 24042 [2022-11-23 15:32:24,192 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 [2022-11-23 15:32:24,193 INFO L413 NwaCegarLoop]: 1876 mSDtfsCounter, 1707 mSDsluCounter, 1429 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1707 SdHoareTripleChecker+Valid, 3305 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:24,194 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1707 Valid, 3305 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-23 15:32:24,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24042 states. [2022-11-23 15:32:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24042 to 23958. [2022-11-23 15:32:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23958 states, 17041 states have (on average 1.4728595739686638) internal successors, (25099), 17509 states have internal predecessors, (25099), 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) [2022-11-23 15:32:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23958 states to 23958 states and 35095 transitions. [2022-11-23 15:32:25,270 INFO L78 Accepts]: Start accepts. Automaton has 23958 states and 35095 transitions. Word has length 317 [2022-11-23 15:32:25,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:25,272 INFO L495 AbstractCegarLoop]: Abstraction has 23958 states and 35095 transitions. [2022-11-23 15:32:25,272 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) [2022-11-23 15:32:25,272 INFO L276 IsEmpty]: Start isEmpty. Operand 23958 states and 35095 transitions. [2022-11-23 15:32:25,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-23 15:32:25,278 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:25,278 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] [2022-11-23 15:32:25,278 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:32:25,279 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 97 more)] === [2022-11-23 15:32:25,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:25,279 INFO L85 PathProgramCache]: Analyzing trace with hash -708526619, now seen corresponding path program 1 times [2022-11-23 15:32:25,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:25,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737208727] [2022-11-23 15:32:25,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:25,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:26,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-23 15:32:26,570 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:26,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737208727] [2022-11-23 15:32:26,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737208727] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:32:26,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415231054] [2022-11-23 15:32:26,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:26,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:32:26,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:32:26,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:32:26,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:32:27,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:27,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 3633 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:32:27,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:27,961 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 1282 proven. 0 refuted. 0 times theorem prover too weak. 3235 trivial. 0 not checked. [2022-11-23 15:32:27,965 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:32:27,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415231054] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:32:27,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:32:27,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-23 15:32:27,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314082165] [2022-11-23 15:32:27,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:32:27,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:32:27,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:32:27,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:32:27,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:32:27,982 INFO L87 Difference]: Start difference. First operand 23958 states and 35095 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) [2022-11-23 15:32:32,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:32:32,194 INFO L93 Difference]: Finished difference Result 47876 states and 70343 transitions. [2022-11-23 15:32:32,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:32:32,195 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 [2022-11-23 15:32:32,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:32:32,303 INFO L225 Difference]: With dead ends: 47876 [2022-11-23 15:32:32,303 INFO L226 Difference]: Without dead ends: 23983 [2022-11-23 15:32:32,364 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 [2022-11-23 15:32:32,365 INFO L413 NwaCegarLoop]: 1574 mSDtfsCounter, 1 mSDsluCounter, 3142 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:32:32,365 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4716 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-11-23 15:32:32,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23983 states. [2022-11-23 15:32:33,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23983 to 23983. [2022-11-23 15:32:33,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23983 states, 17066 states have (on average 1.4721668815188094) internal successors, (25124), 17534 states have internal predecessors, (25124), 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) [2022-11-23 15:32:33,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23983 states to 23983 states and 35120 transitions. [2022-11-23 15:32:33,660 INFO L78 Accepts]: Start accepts. Automaton has 23983 states and 35120 transitions. Word has length 318 [2022-11-23 15:32:33,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:32:33,661 INFO L495 AbstractCegarLoop]: Abstraction has 23983 states and 35120 transitions. [2022-11-23 15:32:33,661 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) [2022-11-23 15:32:33,661 INFO L276 IsEmpty]: Start isEmpty. Operand 23983 states and 35120 transitions. [2022-11-23 15:32:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-23 15:32:33,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:32:33,667 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] [2022-11-23 15:32:33,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 15:32:33,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:32:33,880 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 97 more)] === [2022-11-23 15:32:33,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:32:33,881 INFO L85 PathProgramCache]: Analyzing trace with hash 202167761, now seen corresponding path program 1 times [2022-11-23 15:32:33,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:32:33,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859525992] [2022-11-23 15:32:33,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:33,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:32:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4516 trivial. 0 not checked. [2022-11-23 15:32:35,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:32:35,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859525992] [2022-11-23 15:32:35,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859525992] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:32:35,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282098843] [2022-11-23 15:32:35,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:32:35,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:32:35,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:32:35,079 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:32:35,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f12e472-1b99-41b9-a023-0c9d3c9b88e1/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:32:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:32:36,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 3663 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 15:32:36,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:32:36,389 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 1286 proven. 1 refuted. 0 times theorem prover too weak. 3235 trivial. 0 not checked. [2022-11-23 15:32:36,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:32:36,653 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4516 trivial. 0 not checked. [2022-11-23 15:32:36,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282098843] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:32:36,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [636850152] [2022-11-23 15:32:36,679 INFO L159 IcfgInterpreter]: Started Sifa with 126 locations of interest [2022-11-23 15:32:36,680 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:32:36,684 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:32:36,689 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:32:36,690 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:32:42,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:42,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:32:42,176 INFO L217 Elim1Store]: Index analysis took 374 ms [2022-11-23 15:33:03,856 WARN L233 SmtUtils]: Spent 21.64s on a formula simplification. DAG size of input: 1423 DAG size of output: 711 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-23 15:33:03,862 INFO L321 Elim1Store]: treesize reduction 3366, result has 25.5 percent of original size [2022-11-23 15:33:03,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 92 select indices, 92 select index equivalence classes, 4009 disjoint index pairs (out of 4186 index pairs), introduced 92 new quantified variables, introduced 267 case distinctions, treesize of input 474 treesize of output 1445 [2022-11-23 15:33:06,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:06,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:06,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 89 select indices, 89 select index equivalence classes, 4097 disjoint index pairs (out of 3916 index pairs), introduced 89 new quantified variables, introduced 0 case distinctions, treesize of input 455 treesize of output 723 [2022-11-23 15:33:22,974 INFO L217 Elim1Store]: Index analysis took 164 ms [2022-11-23 15:33:23,027 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 [2022-11-23 15:33:24,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:24,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:24,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 91 select indices, 91 select index equivalence classes, 4097 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 274 [2022-11-23 15:33:25,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:25,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:25,569 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 92 select indices, 92 select index equivalence classes, 4186 disjoint index pairs (out of 4186 index pairs), introduced 92 new quantified variables, introduced 0 case distinctions, treesize of input 461 treesize of output 277 [2022-11-23 15:33:39,485 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 [2022-11-23 15:33:40,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:40,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:40,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 91 select indices, 91 select index equivalence classes, 4097 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 0 case distinctions, treesize of input 456 treesize of output 274 [2022-11-23 15:33:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:41,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-23 15:33:41,590 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 92 select indices, 92 select index equivalence classes, 4186 disjoint index pairs (out of 4186 index pairs), introduced 92 new quantified variables, introduced 0 case distinctions, treesize of input 461 treesize of output 277