./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 e04fb08f 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_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/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_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0 --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-e04fb08 [2022-11-16 20:38:24,125 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 20:38:24,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 20:38:24,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 20:38:24,160 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 20:38:24,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 20:38:24,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 20:38:24,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 20:38:24,165 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 20:38:24,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 20:38:24,172 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 20:38:24,173 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 20:38:24,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 20:38:24,178 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 20:38:24,180 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 20:38:24,182 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 20:38:24,183 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 20:38:24,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 20:38:24,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 20:38:24,192 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 20:38:24,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 20:38:24,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 20:38:24,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 20:38:24,197 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 20:38:24,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 20:38:24,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 20:38:24,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 20:38:24,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 20:38:24,202 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 20:38:24,203 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 20:38:24,203 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 20:38:24,204 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 20:38:24,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 20:38:24,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 20:38:24,207 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 20:38:24,207 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 20:38:24,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 20:38:24,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 20:38:24,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 20:38:24,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 20:38:24,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 20:38:24,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-16 20:38:24,234 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 20:38:24,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 20:38:24,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 20:38:24,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 20:38:24,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 20:38:24,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 20:38:24,236 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 20:38:24,237 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 20:38:24,237 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 20:38:24,237 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 20:38:24,237 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 20:38:24,238 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 20:38:24,238 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 20:38:24,238 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 20:38:24,239 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 20:38:24,239 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 20:38:24,239 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 20:38:24,239 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 20:38:24,240 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 20:38:24,241 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 20:38:24,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 20:38:24,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 20:38:24,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 20:38:24,242 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 20:38:24,242 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 20:38:24,242 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-16 20:38:24,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 20:38:24,243 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 20:38:24,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 20:38:24,243 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 20:38:24,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 20:38:24,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:38:24,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 20:38:24,244 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 20:38:24,245 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 20:38:24,245 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 20:38:24,245 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 20:38:24,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 20:38:24,246 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 20:38:24,246 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 20:38:24,246 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_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 161acb090810893f5857465330b1e9af98cd436d8b1ab4337fc3709fda2d3260 [2022-11-16 20:38:24,518 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 20:38:24,542 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 20:38:24,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 20:38:24,547 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 20:38:24,549 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 20:38:24,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/../../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 [2022-11-16 20:38:24,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/data/c3f0ffe5d/495348376f34478d82960287407930f4/FLAG8f05f1537 [2022-11-16 20:38:25,561 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 20:38:25,563 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/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 [2022-11-16 20:38:25,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/data/c3f0ffe5d/495348376f34478d82960287407930f4/FLAG8f05f1537 [2022-11-16 20:38:25,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/data/c3f0ffe5d/495348376f34478d82960287407930f4 [2022-11-16 20:38:25,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 20:38:25,654 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 20:38:25,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 20:38:25,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 20:38:25,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 20:38:25,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:38:25" (1/1) ... [2022-11-16 20:38:25,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22c6ed34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:25, skipping insertion in model container [2022-11-16 20:38:25,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 08:38:25" (1/1) ... [2022-11-16 20:38:25,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 20:38:25,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 20:38:26,306 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-11-16 20:38:26,822 WARN L229 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_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/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] [2022-11-16 20:38:27,902 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 20:38:27,921 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:38:27,984 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 20:38:28,135 WARN L1255 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4482] [2022-11-16 20:38:28,164 WARN L229 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_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/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] [2022-11-16 20:38:28,692 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 20:38:28,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 20:38:28,790 INFO L208 MainTranslator]: Completed translation [2022-11-16 20:38:28,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28 WrapperNode [2022-11-16 20:38:28,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 20:38:28,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 20:38:28,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 20:38:28,793 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 20:38:28,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:28,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,129 INFO L138 Inliner]: procedures = 242, calls = 2944, calls flagged for inlining = 95, calls inlined = 71, statements flattened = 4100 [2022-11-16 20:38:29,130 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 20:38:29,131 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 20:38:29,131 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 20:38:29,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 20:38:29,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,201 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,401 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 20:38:29,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 20:38:29,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 20:38:29,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 20:38:29,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (1/1) ... [2022-11-16 20:38:29,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 20:38:29,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:38:29,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 20:38:29,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 20:38:29,546 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-11-16 20:38:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-11-16 20:38:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure wxh_to_mode [2022-11-16 20:38:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure wxh_to_mode [2022-11-16 20:38:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure PDEBUG_MODE [2022-11-16 20:38:29,547 INFO L138 BoogieDeclarations]: Found implementation of procedure PDEBUG_MODE [2022-11-16 20:38:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 20:38:29,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 20:38:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 20:38:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 20:38:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-16 20:38:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-16 20:38:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-11-16 20:38:29,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-11-16 20:38:29,548 INFO L130 BoogieDeclarations]: Found specification of procedure frame_free [2022-11-16 20:38:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_free [2022-11-16 20:38:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure alt_xfer [2022-11-16 20:38:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_xfer [2022-11-16 20:38:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamon [2022-11-16 20:38:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamon [2022-11-16 20:38:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 20:38:29,549 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 20:38:29,549 INFO L130 BoogieDeclarations]: Found specification of procedure dev_mmap [2022-11-16 20:38:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_mmap [2022-11-16 20:38:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-11-16 20:38:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-11-16 20:38:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 20:38:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 20:38:29,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-11-16 20:38:29,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-11-16 20:38:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_streamoff [2022-11-16 20:38:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_streamoff [2022-11-16 20:38:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_init_transfer [2022-11-16 20:38:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_init_transfer [2022-11-16 20:38:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure dev_poll [2022-11-16 20:38:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_poll [2022-11-16 20:38:29,551 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-16 20:38:29,551 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-16 20:38:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_reqbufs [2022-11-16 20:38:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_reqbufs [2022-11-16 20:38:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready_nolock [2022-11-16 20:38:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready_nolock [2022-11-16 20:38:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 20:38:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 20:38:29,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 20:38:29,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 20:38:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure frame_ready [2022-11-16 20:38:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure frame_ready [2022-11-16 20:38:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2022-11-16 20:38:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2022-11-16 20:38:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-11-16 20:38:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-11-16 20:38:29,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 20:38:29,553 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 20:38:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 20:38:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 20:38:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_set_alt0 [2022-11-16 20:38:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_set_alt0 [2022-11-16 20:38:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure bulk_irq [2022-11-16 20:38:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure bulk_irq [2022-11-16 20:38:29,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-11-16 20:38:29,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-11-16 20:38:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2022-11-16 20:38:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2022-11-16 20:38:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure ktime_get [2022-11-16 20:38:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ktime_get [2022-11-16 20:38:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 20:38:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2022-11-16 20:38:29,555 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2022-11-16 20:38:29,555 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-11-16 20:38:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-11-16 20:38:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 20:38:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-11-16 20:38:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-11-16 20:38:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 20:38:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2022-11-16 20:38:29,556 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2022-11-16 20:38:29,556 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_and_submit_int_urb [2022-11-16 20:38:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_and_submit_int_urb [2022-11-16 20:38:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-16 20:38:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-16 20:38:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 20:38:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-11-16 20:38:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2022-11-16 20:38:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2022-11-16 20:38:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure int_irq [2022-11-16 20:38:29,557 INFO L138 BoogieDeclarations]: Found implementation of procedure int_irq [2022-11-16 20:38:29,557 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_setup [2022-11-16 20:38:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_setup [2022-11-16 20:38:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 20:38:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 20:38:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure fill_frame [2022-11-16 20:38:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure fill_frame [2022-11-16 20:38:29,558 INFO L130 BoogieDeclarations]: Found specification of procedure read_alloc [2022-11-16 20:38:29,558 INFO L138 BoogieDeclarations]: Found implementation of procedure read_alloc [2022-11-16 20:38:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_stream_off [2022-11-16 20:38:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_stream_off [2022-11-16 20:38:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-11-16 20:38:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-11-16 20:38:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 20:38:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-11-16 20:38:29,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-11-16 20:38:29,559 INFO L130 BoogieDeclarations]: Found specification of procedure isoc_irq [2022-11-16 20:38:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure isoc_irq [2022-11-16 20:38:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_dqbuf [2022-11-16 20:38:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_dqbuf [2022-11-16 20:38:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_create_urb [2022-11-16 20:38:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_create_urb [2022-11-16 20:38:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure ns_to_timeval [2022-11-16 20:38:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_to_timeval [2022-11-16 20:38:29,560 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2022-11-16 20:38:29,560 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2022-11-16 20:38:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release_empty [2022-11-16 20:38:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release_empty [2022-11-16 20:38:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 20:38:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2022-11-16 20:38:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2022-11-16 20:38:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_8 [2022-11-16 20:38:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_8 [2022-11-16 20:38:29,561 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-11-16 20:38:29,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-11-16 20:38:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_9 [2022-11-16 20:38:29,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_9 [2022-11-16 20:38:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_input_destroy_urb [2022-11-16 20:38:29,562 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_input_destroy_urb [2022-11-16 20:38:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 20:38:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 20:38:29,562 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 20:38:29,562 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 20:38:29,562 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 20:38:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 20:38:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 20:38:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-11-16 20:38:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-11-16 20:38:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 20:38:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~VOID [2022-11-16 20:38:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 20:38:29,563 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 20:38:29,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 20:38:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-11-16 20:38:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-11-16 20:38:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2022-11-16 20:38:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_subscribe_event [2022-11-16 20:38:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 20:38:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_urbs [2022-11-16 20:38:29,564 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_urbs [2022-11-16 20:38:29,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 20:38:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2022-11-16 20:38:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2022-11-16 20:38:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-16 20:38:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-16 20:38:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 20:38:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 20:38:29,565 INFO L130 BoogieDeclarations]: Found specification of procedure try_fmt_vid_cap [2022-11-16 20:38:29,565 INFO L138 BoogieDeclarations]: Found implementation of procedure try_fmt_vid_cap [2022-11-16 20:38:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 20:38:29,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 20:38:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-16 20:38:29,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-16 20:38:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2022-11-16 20:38:29,566 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2022-11-16 20:38:29,566 INFO L130 BoogieDeclarations]: Found specification of procedure dev_open [2022-11-16 20:38:29,566 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_open [2022-11-16 20:38:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_close [2022-11-16 20:38:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_close [2022-11-16 20:38:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-11-16 20:38:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-11-16 20:38:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_qbuf [2022-11-16 20:38:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_qbuf [2022-11-16 20:38:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 20:38:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 20:38:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2022-11-16 20:38:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_event_unsubscribe [2022-11-16 20:38:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-11-16 20:38:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-11-16 20:38:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 20:38:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 20:38:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 20:38:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure gspca_vm_open [2022-11-16 20:38:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure gspca_vm_open [2022-11-16 20:38:29,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 20:38:29,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 20:38:30,600 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 20:38:30,605 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 20:38:30,828 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 20:38:32,438 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-11-16 20:38:35,187 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 20:38:36,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 20:38:36,426 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 20:38:36,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:36 BoogieIcfgContainer [2022-11-16 20:38:36,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 20:38:36,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 20:38:36,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 20:38:36,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 20:38:36,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 08:38:25" (1/3) ... [2022-11-16 20:38:36,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4463f9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:36, skipping insertion in model container [2022-11-16 20:38:36,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 08:38:28" (2/3) ... [2022-11-16 20:38:36,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4463f9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 08:38:36, skipping insertion in model container [2022-11-16 20:38:36,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 08:38:36" (3/3) ... [2022-11-16 20:38:36,441 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 [2022-11-16 20:38:36,463 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 20:38:36,464 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 98 error locations. [2022-11-16 20:38:36,541 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 20:38:36,548 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;@4427d8a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 20:38:36,548 INFO L358 AbstractCegarLoop]: Starting to check reachability of 98 error locations. [2022-11-16 20:38:36,557 INFO L276 IsEmpty]: Start isEmpty. Operand has 1300 states, 834 states have (on average 1.4772182254196642) internal successors, (1232), 959 states have internal predecessors, (1232), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) [2022-11-16 20:38:36,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-16 20:38:36,579 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:36,580 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] [2022-11-16 20:38:36,581 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting gspca_vm_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:38:36,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:36,587 INFO L85 PathProgramCache]: Analyzing trace with hash -2047404163, now seen corresponding path program 1 times [2022-11-16 20:38:36,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:38:36,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374570090] [2022-11-16 20:38:36,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:36,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:38:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:38:37,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3123 trivial. 0 not checked. [2022-11-16 20:38:37,783 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:38:37,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374570090] [2022-11-16 20:38:37,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374570090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:38:37,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:38:37,785 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:38:37,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37258066] [2022-11-16 20:38:37,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:38:37,797 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:38:37,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:38:37,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:38:37,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:38:37,841 INFO L87 Difference]: Start difference. First operand has 1300 states, 834 states have (on average 1.4772182254196642) internal successors, (1232), 959 states have internal predecessors, (1232), 287 states have call successors, (287), 82 states have call predecessors, (287), 80 states have return successors, (280), 274 states have call predecessors, (280), 280 states have call successors, (280) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-16 20:38:41,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:38:41,854 INFO L93 Difference]: Finished difference Result 3699 states and 5118 transitions. [2022-11-16 20:38:41,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:38:41,858 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 [2022-11-16 20:38:41,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:38:41,896 INFO L225 Difference]: With dead ends: 3699 [2022-11-16 20:38:41,897 INFO L226 Difference]: Without dead ends: 2439 [2022-11-16 20:38:41,914 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 [2022-11-16 20:38:41,918 INFO L413 NwaCegarLoop]: 1829 mSDtfsCounter, 1756 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 380 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1756 SdHoareTripleChecker+Valid, 3296 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:38:41,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1756 Valid, 3296 Invalid, 382 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 380 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 20:38:41,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2022-11-16 20:38:42,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2348. [2022-11-16 20:38:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2348 states, 1593 states have (on average 1.470182046453233) internal successors, (2342), 1715 states have internal predecessors, (2342), 505 states have call successors, (505), 158 states have call predecessors, (505), 158 states have return successors, (505), 492 states have call predecessors, (505), 505 states have call successors, (505) [2022-11-16 20:38:42,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2348 states to 2348 states and 3352 transitions. [2022-11-16 20:38:42,242 INFO L78 Accepts]: Start accepts. Automaton has 2348 states and 3352 transitions. Word has length 259 [2022-11-16 20:38:42,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:38:42,250 INFO L495 AbstractCegarLoop]: Abstraction has 2348 states and 3352 transitions. [2022-11-16 20:38:42,251 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) [2022-11-16 20:38:42,251 INFO L276 IsEmpty]: Start isEmpty. Operand 2348 states and 3352 transitions. [2022-11-16 20:38:42,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2022-11-16 20:38:42,265 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:42,266 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] [2022-11-16 20:38:42,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 20:38:42,267 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:38:42,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:42,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1895064319, now seen corresponding path program 1 times [2022-11-16 20:38:42,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:38:42,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36948283] [2022-11-16 20:38:42,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:42,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:38:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:38:42,847 INFO L134 CoverageAnalysis]: Checked inductivity of 3123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3123 trivial. 0 not checked. [2022-11-16 20:38:42,848 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:38:42,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36948283] [2022-11-16 20:38:42,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36948283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:38:42,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:38:42,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:38:42,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702177839] [2022-11-16 20:38:42,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:38:42,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:38:42,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:38:42,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:38:42,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:38:42,856 INFO L87 Difference]: Start difference. First operand 2348 states and 3352 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2022-11-16 20:38:46,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:38:46,218 INFO L93 Difference]: Finished difference Result 6844 states and 9757 transitions. [2022-11-16 20:38:46,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:38:46,219 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 [2022-11-16 20:38:46,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:38:46,247 INFO L225 Difference]: With dead ends: 6844 [2022-11-16 20:38:46,248 INFO L226 Difference]: Without dead ends: 4581 [2022-11-16 20:38:46,259 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 [2022-11-16 20:38:46,261 INFO L413 NwaCegarLoop]: 1816 mSDtfsCounter, 1721 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1721 SdHoareTripleChecker+Valid, 3252 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:38:46,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1721 Valid, 3252 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-11-16 20:38:46,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-11-16 20:38:46,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4492. [2022-11-16 20:38:46,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 3119 states have (on average 1.4745110612375762) internal successors, (4599), 3273 states have internal predecessors, (4599), 965 states have call successors, (965), 316 states have call predecessors, (965), 316 states have return successors, (965), 938 states have call predecessors, (965), 965 states have call successors, (965) [2022-11-16 20:38:46,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6529 transitions. [2022-11-16 20:38:46,504 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 6529 transitions. Word has length 259 [2022-11-16 20:38:46,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:38:46,506 INFO L495 AbstractCegarLoop]: Abstraction has 4492 states and 6529 transitions. [2022-11-16 20:38:46,506 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) [2022-11-16 20:38:46,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 6529 transitions. [2022-11-16 20:38:46,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-11-16 20:38:46,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:46,514 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] [2022-11-16 20:38:46,515 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 20:38:46,515 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:38:46,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:46,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1415148170, now seen corresponding path program 1 times [2022-11-16 20:38:46,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:38:46,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194973318] [2022-11-16 20:38:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:46,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:38:46,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:38:47,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-11-16 20:38:47,037 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:38:47,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194973318] [2022-11-16 20:38:47,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194973318] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:38:47,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:38:47,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:38:47,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795487698] [2022-11-16 20:38:47,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:38:47,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:38:47,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:38:47,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:38:47,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:38:47,046 INFO L87 Difference]: Start difference. First operand 4492 states and 6529 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (45), 1 states have call predecessors, (45), 1 states have return successors, (45), 2 states have call predecessors, (45), 2 states have call successors, (45) [2022-11-16 20:38:50,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:38:50,440 INFO L93 Difference]: Finished difference Result 12315 states and 17784 transitions. [2022-11-16 20:38:50,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:38:50,441 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 [2022-11-16 20:38:50,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:38:50,493 INFO L225 Difference]: With dead ends: 12315 [2022-11-16 20:38:50,493 INFO L226 Difference]: Without dead ends: 7908 [2022-11-16 20:38:50,514 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 [2022-11-16 20:38:50,519 INFO L413 NwaCegarLoop]: 1782 mSDtfsCounter, 1357 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 3156 SdHoareTripleChecker+Invalid, 440 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:38:50,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 3156 Invalid, 440 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-11-16 20:38:50,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7908 states. [2022-11-16 20:38:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7908 to 7830. [2022-11-16 20:38:50,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7830 states, 5473 states have (on average 1.4708569340398319) internal successors, (8050), 5687 states have internal predecessors, (8050), 1664 states have call successors, (1664), 601 states have call predecessors, (1664), 601 states have return successors, (1664), 1613 states have call predecessors, (1664), 1664 states have call successors, (1664) [2022-11-16 20:38:50,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7830 states to 7830 states and 11378 transitions. [2022-11-16 20:38:50,988 INFO L78 Accepts]: Start accepts. Automaton has 7830 states and 11378 transitions. Word has length 283 [2022-11-16 20:38:50,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:38:50,989 INFO L495 AbstractCegarLoop]: Abstraction has 7830 states and 11378 transitions. [2022-11-16 20:38:50,989 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) [2022-11-16 20:38:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 7830 states and 11378 transitions. [2022-11-16 20:38:50,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2022-11-16 20:38:50,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:50,995 INFO L195 NwaCegarLoop]: trace histogram [40, 40, 40, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 20:38:50,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 20:38:50,995 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:38:50,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:50,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1884052222, now seen corresponding path program 1 times [2022-11-16 20:38:50,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:38:51,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722407538] [2022-11-16 20:38:51,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:51,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:38:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:38:51,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3127 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3127 trivial. 0 not checked. [2022-11-16 20:38:51,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:38:51,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722407538] [2022-11-16 20:38:51,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722407538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:38:51,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:38:51,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:38:51,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388944780] [2022-11-16 20:38:51,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:38:51,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:38:51,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:38:51,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:38:51,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:38:51,376 INFO L87 Difference]: Start difference. First operand 7830 states and 11378 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-16 20:38:56,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:38:56,008 INFO L93 Difference]: Finished difference Result 19822 states and 28780 transitions. [2022-11-16 20:38:56,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:38:56,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 287 [2022-11-16 20:38:56,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:38:56,103 INFO L225 Difference]: With dead ends: 19822 [2022-11-16 20:38:56,103 INFO L226 Difference]: Without dead ends: 12083 [2022-11-16 20:38:56,146 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 [2022-11-16 20:38:56,151 INFO L413 NwaCegarLoop]: 2834 mSDtfsCounter, 1619 mSDsluCounter, 1413 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1619 SdHoareTripleChecker+Valid, 4247 SdHoareTripleChecker+Invalid, 561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2022-11-16 20:38:56,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1619 Valid, 4247 Invalid, 561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2022-11-16 20:38:56,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12083 states. [2022-11-16 20:38:56,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12083 to 11995. [2022-11-16 20:38:56,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11995 states, 8470 states have (on average 1.4739079102715467) internal successors, (12484), 8748 states have internal predecessors, (12484), 2520 states have call successors, (2520), 913 states have call predecessors, (2520), 913 states have return successors, (2520), 2441 states have call predecessors, (2520), 2520 states have call successors, (2520) [2022-11-16 20:38:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11995 states to 11995 states and 17524 transitions. [2022-11-16 20:38:56,844 INFO L78 Accepts]: Start accepts. Automaton has 11995 states and 17524 transitions. Word has length 287 [2022-11-16 20:38:56,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:38:56,850 INFO L495 AbstractCegarLoop]: Abstraction has 11995 states and 17524 transitions. [2022-11-16 20:38:56,851 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2022-11-16 20:38:56,851 INFO L276 IsEmpty]: Start isEmpty. Operand 11995 states and 17524 transitions. [2022-11-16 20:38:56,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-16 20:38:56,857 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:38:56,858 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] [2022-11-16 20:38:56,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 20:38:56,858 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting gspca_vm_closeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:38:56,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:38:56,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1784485689, now seen corresponding path program 1 times [2022-11-16 20:38:56,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:38:56,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678248647] [2022-11-16 20:38:56,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:38:56,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:38:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:38:57,395 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-16 20:38:57,395 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:38:57,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678248647] [2022-11-16 20:38:57,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678248647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:38:57,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:38:57,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 20:38:57,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690663942] [2022-11-16 20:38:57,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:38:57,397 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:38:57,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:38:57,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:38:57,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:38:57,398 INFO L87 Difference]: Start difference. First operand 11995 states and 17524 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-16 20:39:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:39:01,738 INFO L93 Difference]: Finished difference Result 29879 states and 43596 transitions. [2022-11-16 20:39:01,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:39:01,744 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 [2022-11-16 20:39:01,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:39:01,821 INFO L225 Difference]: With dead ends: 29879 [2022-11-16 20:39:01,822 INFO L226 Difference]: Without dead ends: 17980 [2022-11-16 20:39:01,866 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 [2022-11-16 20:39:01,867 INFO L413 NwaCegarLoop]: 1863 mSDtfsCounter, 1606 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1606 SdHoareTripleChecker+Valid, 3417 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:39:01,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1606 Valid, 3417 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-16 20:39:01,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17980 states. [2022-11-16 20:39:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17980 to 17889. [2022-11-16 20:39:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17889 states, 12681 states have (on average 1.473464237836133) internal successors, (18685), 13053 states have internal predecessors, (18685), 3750 states have call successors, (3750), 1366 states have call predecessors, (3750), 1366 states have return successors, (3750), 3631 states have call predecessors, (3750), 3750 states have call successors, (3750) [2022-11-16 20:39:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17889 states to 17889 states and 26185 transitions. [2022-11-16 20:39:02,610 INFO L78 Accepts]: Start accepts. Automaton has 17889 states and 26185 transitions. Word has length 317 [2022-11-16 20:39:02,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:39:02,611 INFO L495 AbstractCegarLoop]: Abstraction has 17889 states and 26185 transitions. [2022-11-16 20:39:02,611 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) [2022-11-16 20:39:02,612 INFO L276 IsEmpty]: Start isEmpty. Operand 17889 states and 26185 transitions. [2022-11-16 20:39:02,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-11-16 20:39:02,619 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:39:02,619 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] [2022-11-16 20:39:02,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 20:39:02,620 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:39:02,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:39:02,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1936825533, now seen corresponding path program 1 times [2022-11-16 20:39:02,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:39:02,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511181538] [2022-11-16 20:39:02,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:39:02,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:39:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:39:03,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4518 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4518 trivial. 0 not checked. [2022-11-16 20:39:03,192 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:39:03,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511181538] [2022-11-16 20:39:03,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511181538] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:39:03,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 20:39:03,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 20:39:03,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099762193] [2022-11-16 20:39:03,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:39:03,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 20:39:03,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:39:03,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 20:39:03,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 20:39:03,196 INFO L87 Difference]: Start difference. First operand 17889 states and 26185 transitions. Second operand has 3 states, 2 states have (on average 36.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (50), 1 states have call predecessors, (50), 1 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-16 20:39:06,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:39:06,661 INFO L93 Difference]: Finished difference Result 23968 states and 34983 transitions. [2022-11-16 20:39:06,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 20:39:06,662 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 [2022-11-16 20:39:06,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:39:06,785 INFO L225 Difference]: With dead ends: 23968 [2022-11-16 20:39:06,785 INFO L226 Difference]: Without dead ends: 23958 [2022-11-16 20:39:06,797 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 [2022-11-16 20:39:06,798 INFO L413 NwaCegarLoop]: 1821 mSDtfsCounter, 1699 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1699 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-11-16 20:39:06,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1699 Valid, 3242 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-11-16 20:39:06,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23958 states. [2022-11-16 20:39:07,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23958 to 23876. [2022-11-16 20:39:07,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23876 states, 16961 states have (on average 1.4703732091268205) internal successors, (24939), 17427 states have internal predecessors, (24939), 4998 states have call successors, (4998), 1825 states have call predecessors, (4998), 1825 states have return successors, (4998), 4839 states have call predecessors, (4998), 4998 states have call successors, (4998) [2022-11-16 20:39:07,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23876 states to 23876 states and 34935 transitions. [2022-11-16 20:39:07,945 INFO L78 Accepts]: Start accepts. Automaton has 23876 states and 34935 transitions. Word has length 317 [2022-11-16 20:39:07,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:39:07,946 INFO L495 AbstractCegarLoop]: Abstraction has 23876 states and 34935 transitions. [2022-11-16 20:39:07,947 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) [2022-11-16 20:39:07,947 INFO L276 IsEmpty]: Start isEmpty. Operand 23876 states and 34935 transitions. [2022-11-16 20:39:07,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2022-11-16 20:39:07,953 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:39:07,953 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] [2022-11-16 20:39:07,954 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 20:39:07,954 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting gspca_vm_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:39:07,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:39:07,955 INFO L85 PathProgramCache]: Analyzing trace with hash -266775617, now seen corresponding path program 1 times [2022-11-16 20:39:07,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:39:07,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181377841] [2022-11-16 20:39:07,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:39:07,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:39:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:39:08,847 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4515 trivial. 0 not checked. [2022-11-16 20:39:08,847 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:39:08,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181377841] [2022-11-16 20:39:08,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181377841] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:39:08,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [520009028] [2022-11-16 20:39:08,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:39:08,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:39:08,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:39:08,855 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:39:08,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 20:39:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:39:10,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 3641 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 20:39:10,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:39:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 1283 proven. 0 refuted. 0 times theorem prover too weak. 3234 trivial. 0 not checked. [2022-11-16 20:39:10,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 20:39:10,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [520009028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 20:39:10,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 20:39:10,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-16 20:39:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055825681] [2022-11-16 20:39:10,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 20:39:10,528 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 20:39:10,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 20:39:10,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 20:39:10,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-16 20:39:10,530 INFO L87 Difference]: Start difference. First operand 23876 states and 34935 transitions. Second operand has 4 states, 3 states have (on average 26.0) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (51), 2 states have call predecessors, (51), 3 states have return successors, (50), 2 states have call predecessors, (50), 2 states have call successors, (50) [2022-11-16 20:39:15,359 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-16 20:39:16,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 20:39:16,505 INFO L93 Difference]: Finished difference Result 47712 states and 70023 transitions. [2022-11-16 20:39:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 20:39:16,507 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 [2022-11-16 20:39:16,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 20:39:16,641 INFO L225 Difference]: With dead ends: 47712 [2022-11-16 20:39:16,642 INFO L226 Difference]: Without dead ends: 23901 [2022-11-16 20:39:16,724 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 [2022-11-16 20:39:16,725 INFO L413 NwaCegarLoop]: 1566 mSDtfsCounter, 1 mSDsluCounter, 3126 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-11-16 20:39:16,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 4692 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 562 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2022-11-16 20:39:16,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23901 states. [2022-11-16 20:39:18,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23901 to 23901. [2022-11-16 20:39:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23901 states, 16986 states have (on average 1.46968091369363) internal successors, (24964), 17452 states have internal predecessors, (24964), 4998 states have call successors, (4998), 1825 states have call predecessors, (4998), 1825 states have return successors, (4998), 4839 states have call predecessors, (4998), 4998 states have call successors, (4998) [2022-11-16 20:39:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23901 states to 23901 states and 34960 transitions. [2022-11-16 20:39:18,166 INFO L78 Accepts]: Start accepts. Automaton has 23901 states and 34960 transitions. Word has length 318 [2022-11-16 20:39:18,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 20:39:18,167 INFO L495 AbstractCegarLoop]: Abstraction has 23901 states and 34960 transitions. [2022-11-16 20:39:18,167 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) [2022-11-16 20:39:18,167 INFO L276 IsEmpty]: Start isEmpty. Operand 23901 states and 34960 transitions. [2022-11-16 20:39:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-16 20:39:18,173 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 20:39:18,173 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] [2022-11-16 20:39:18,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 20:39:18,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-16 20:39:18,388 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting gspca_vm_openErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [wxh_to_modeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, wxh_to_modeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, frame_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 95 more)] === [2022-11-16 20:39:18,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 20:39:18,389 INFO L85 PathProgramCache]: Analyzing trace with hash -247678465, now seen corresponding path program 1 times [2022-11-16 20:39:18,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 20:39:18,389 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458162367] [2022-11-16 20:39:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:39:18,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 20:39:18,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:39:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 4516 trivial. 0 not checked. [2022-11-16 20:39:19,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 20:39:19,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458162367] [2022-11-16 20:39:19,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458162367] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 20:39:19,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911749283] [2022-11-16 20:39:19,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 20:39:19,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 20:39:19,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 20:39:19,584 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 20:39:19,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5362ed9-2baa-4dfe-9eeb-fb9969a94e9c/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 20:39:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 20:39:20,961 INFO L263 TraceCheckSpWp]: Trace formula consists of 3671 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 20:39:20,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 20:39:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 1283 proven. 3 refuted. 0 times theorem prover too weak. 3236 trivial. 0 not checked. [2022-11-16 20:39:21,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 20:39:21,370 INFO L134 CoverageAnalysis]: Checked inductivity of 4522 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4516 trivial. 0 not checked. [2022-11-16 20:39:21,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911749283] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 20:39:21,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1378950788] [2022-11-16 20:39:21,399 INFO L159 IcfgInterpreter]: Started Sifa with 126 locations of interest [2022-11-16 20:39:21,399 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 20:39:21,404 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 20:39:21,411 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 20:39:21,411 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 20:39:27,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:39:27,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:39:27,386 INFO L217 Elim1Store]: Index analysis took 417 ms [2022-11-16 20:39:49,668 WARN L233 SmtUtils]: Spent 22.23s on a formula simplification. DAG size of input: 1455 DAG size of output: 727 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-16 20:39:49,674 INFO L321 Elim1Store]: treesize reduction 3442, result has 25.5 percent of original size [2022-11-16 20:39:49,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 94 select indices, 94 select index equivalence classes, 4190 disjoint index pairs (out of 4371 index pairs), introduced 94 new quantified variables, introduced 273 case distinctions, treesize of input 484 treesize of output 1477 [2022-11-16 20:39:53,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:39:53,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:39:53,403 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 91 select indices, 91 select index equivalence classes, 4280 disjoint index pairs (out of 4095 index pairs), introduced 91 new quantified variables, introduced 0 case distinctions, treesize of input 465 treesize of output 739 [2022-11-16 20:40:12,029 INFO L217 Elim1Store]: Index analysis took 240 ms [2022-11-16 20:40:12,090 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 [2022-11-16 20:40:13,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:14,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:14,017 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 93 select indices, 93 select index equivalence classes, 4280 disjoint index pairs (out of 4278 index pairs), introduced 93 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 280 [2022-11-16 20:40:14,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:14,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:14,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 94 select indices, 94 select index equivalence classes, 4371 disjoint index pairs (out of 4371 index pairs), introduced 94 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 283 [2022-11-16 20:40:31,904 INFO L217 Elim1Store]: Index analysis took 102 ms [2022-11-16 20:40:31,941 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 [2022-11-16 20:40:33,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:33,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:33,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 94 select indices, 94 select index equivalence classes, 4371 disjoint index pairs (out of 4371 index pairs), introduced 94 new quantified variables, introduced 0 case distinctions, treesize of input 471 treesize of output 283 [2022-11-16 20:40:34,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 20:40:34,090 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 93 select indices, 93 select index equivalence classes, 4280 disjoint index pairs (out of 4278 index pairs), introduced 93 new quantified variables, introduced 0 case distinctions, treesize of input 466 treesize of output 280