./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 65d40b2043e7a83af3849efad1c4fa824e696aef038aa449d52dadf52dd97034 --- 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-dbf71c6-m [2022-10-17 11:03:49,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:03:49,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:03:49,763 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:03:49,764 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:03:49,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:03:49,771 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:03:49,773 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:03:49,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:03:49,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:03:49,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:03:49,779 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:03:49,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:03:49,780 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:03:49,782 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:03:49,783 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:03:49,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:03:49,785 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:03:49,787 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:03:49,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:03:49,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:03:49,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:03:49,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:03:49,795 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:03:49,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:03:49,800 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:03:49,800 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:03:49,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:03:49,802 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:03:49,803 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:03:49,803 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:03:49,804 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:03:49,805 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:03:49,806 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:03:49,807 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:03:49,808 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:03:49,809 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:03:49,809 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:03:49,810 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:03:49,811 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:03:49,811 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:03:49,812 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-10-17 11:03:49,864 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:03:49,864 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:03:49,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:03:49,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:03:49,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:03:49,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:03:49,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:03:49,868 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:03:49,868 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:03:49,869 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:03:49,869 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:03:49,869 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:03:49,870 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:03:49,870 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:03:49,871 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:03:49,871 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:03:49,872 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:03:49,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:03:49,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:03:49,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:03:49,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:03:49,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:03:49,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:03:49,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:03:49,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:03:49,882 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:03:49,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:03:49,883 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:03:49,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:03:49,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:03:49,884 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_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 65d40b2043e7a83af3849efad1c4fa824e696aef038aa449d52dadf52dd97034 [2022-10-17 11:03:50,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:03:50,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:03:50,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:03:50,152 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:03:50,153 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:03:50,155 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i [2022-10-17 11:03:50,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/data/e4310e743/6b33a8d51de2467eb670e4d28bc06c0e/FLAGfafc95427 [2022-10-17 11:03:51,028 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:03:51,029 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i [2022-10-17 11:03:51,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/data/e4310e743/6b33a8d51de2467eb670e4d28bc06c0e/FLAGfafc95427 [2022-10-17 11:03:51,548 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/data/e4310e743/6b33a8d51de2467eb670e4d28bc06c0e [2022-10-17 11:03:51,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:03:51,555 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:03:51,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:51,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:03:51,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:03:51,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1618825e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:51, skipping insertion in model container [2022-10-17 11:03:51,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:03:51" (1/1) ... [2022-10-17 11:03:51,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:03:51,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:03:53,676 WARN L230 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_bf7ce169-6200-416a-a91f-9e85f5434c4e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i[222868,222881] [2022-10-17 11:03:53,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:53,925 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:03:54,363 WARN L230 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_bf7ce169-6200-416a-a91f-9e85f5434c4e/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i[222868,222881] [2022-10-17 11:03:54,384 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:03:54,562 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:03:54,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54 WrapperNode [2022-10-17 11:03:54,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:03:54,566 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:03:54,566 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:03:54,567 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:03:54,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:54,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:55,286 INFO L138 Inliner]: procedures = 319, calls = 1696, calls flagged for inlining = 115, calls inlined = 107, statements flattened = 4067 [2022-10-17 11:03:55,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:03:55,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:03:55,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:03:55,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:03:55,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:55,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:55,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:55,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:56,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:56,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:56,176 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:56,207 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:56,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:03:56,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:03:56,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:03:56,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:03:56,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (1/1) ... [2022-10-17 11:03:56,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:03:56,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:03:56,326 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:03:56,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf7ce169-6200-416a-a91f-9e85f5434c4e/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:03:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-10-17 11:03:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-10-17 11:03:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_fillrect [2022-10-17 11:03:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_fillrect [2022-10-17 11:03:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2022-10-17 11:03:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2022-10-17 11:03:56,371 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_submit_urb [2022-10-17 11:03:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_submit_urb [2022-10-17 11:03:56,371 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_urb_completion [2022-10-17 11:03:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_urb_completion [2022-10-17 11:03:56,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-17 11:03:56,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-17 11:03:56,372 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-17 11:03:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-17 11:03:56,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-17 11:03:56,372 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-17 11:03:56,373 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_mmap [2022-10-17 11:03:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_mmap [2022-10-17 11:03:56,373 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer_work [2022-10-17 11:03:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer_work [2022-10-17 11:03:56,373 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_unlock [2022-10-17 11:03:56,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_unlock [2022-10-17 11:03:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-17 11:03:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-17 11:03:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_check_var [2022-10-17 11:03:56,374 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_check_var [2022-10-17 11:03:56,374 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2022-10-17 11:03:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2022-10-17 11:03:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_is_valid_mode [2022-10-17 11:03:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_is_valid_mode [2022-10-17 11:03:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_lfsr16 [2022-10-17 11:03:56,375 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_lfsr16 [2022-10-17 11:03:56,375 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2022-10-17 11:03:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2022-10-17 11:03:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-10-17 11:03:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-10-17 11:03:56,376 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-17 11:03:56,376 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-17 11:03:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_setcolreg [2022-10-17 11:03:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_setcolreg [2022-10-17 11:03:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-17 11:03:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-17 11:03:56,377 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2022-10-17 11:03:56,377 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2022-10-17 11:03:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-10-17 11:03:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-10-17 11:03:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-17 11:03:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-17 11:03:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_release [2022-10-17 11:03:56,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_release [2022-10-17 11:03:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-17 11:03:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-17 11:03:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_get_urb [2022-10-17 11:03:56,379 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_get_urb [2022-10-17 11:03:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_video_mode [2022-10-17 11:03:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_video_mode [2022-10-17 11:03:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-17 11:03:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-17 11:03:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-17 11:03:56,380 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-17 11:03:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_blank [2022-10-17 11:03:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_blank [2022-10-17 11:03:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 11:03:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-10-17 11:03:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-10-17 11:03:56,381 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-17 11:03:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure get_cycles [2022-10-17 11:03:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure get_cycles [2022-10-17 11:03:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-10-17 11:03:56,382 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-10-17 11:03:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 11:03:56,382 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_copyarea [2022-10-17 11:03:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_copyarea [2022-10-17 11:03:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-17 11:03:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-17 11:03:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-17 11:03:56,383 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2022-10-17 11:03:56,383 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2022-10-17 11:03:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 11:03:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-10-17 11:03:56,384 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-10-17 11:03:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 11:03:56,384 INFO L130 BoogieDeclarations]: Found specification of procedure fb_edid_to_monspecs [2022-10-17 11:03:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_edid_to_monspecs [2022-10-17 11:03:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-10-17 11:03:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-10-17 11:03:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-17 11:03:56,385 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-17 11:03:56,385 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-17 11:03:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-17 11:03:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-17 11:03:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-17 11:03:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_setup_modes [2022-10-17 11:03:56,386 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_setup_modes [2022-10-17 11:03:56,386 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-10-17 11:03:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-10-17 11:03:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-10-17 11:03:56,387 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-10-17 11:03:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-17 11:03:56,387 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_vidreg_lock [2022-10-17 11:03:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_vidreg_lock [2022-10-17 11:03:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-17 11:03:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-17 11:03:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-17 11:03:56,388 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-10-17 11:03:56,388 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-10-17 11:03:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 11:03:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_fb_info [2022-10-17 11:03:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_fb_info [2022-10-17 11:03:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_ioctl [2022-10-17 11:03:56,389 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_ioctl [2022-10-17 11:03:56,389 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_free_framebuffer [2022-10-17 11:03:56,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_free_framebuffer [2022-10-17 11:03:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-17 11:03:56,390 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-17 11:03:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_var_color_format [2022-10-17 11:03:56,390 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_var_color_format [2022-10-17 11:03:56,390 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-17 11:03:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-17 11:03:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-17 11:03:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-17 11:03:56,391 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2022-10-17 11:03:56,391 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2022-10-17 11:03:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-10-17 11:03:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-10-17 11:03:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_handle_damage [2022-10-17 11:03:56,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_handle_damage [2022-10-17 11:03:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 11:03:56,392 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_render_hline [2022-10-17 11:03:56,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_render_hline [2022-10-17 11:03:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_usb_disconnect [2022-10-17 11:03:56,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_usb_disconnect [2022-10-17 11:03:56,393 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-10-17 11:03:56,393 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-10-17 11:03:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-17 11:03:56,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-17 11:03:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_release_urb_work [2022-10-17 11:03:56,394 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_release_urb_work [2022-10-17 11:03:56,394 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-17 11:03:56,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-17 11:03:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 11:03:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_blanking [2022-10-17 11:03:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_blanking [2022-10-17 11:03:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-17 11:03:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-17 11:03:56,395 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register_16 [2022-10-17 11:03:56,395 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register_16 [2022-10-17 11:03:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:03:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_imageblit [2022-10-17 11:03:56,396 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_imageblit [2022-10-17 11:03:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 11:03:56,396 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:03:56,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-17 11:03:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_open [2022-10-17 11:03:56,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_open [2022-10-17 11:03:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_set_register [2022-10-17 11:03:56,397 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_set_register [2022-10-17 11:03:56,397 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-10-17 11:03:56,397 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-10-17 11:03:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-10-17 11:03:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-10-17 11:03:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_fb_info [2022-10-17 11:03:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_fb_info [2022-10-17 11:03:56,398 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-10-17 11:03:56,398 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-10-17 11:03:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_init_framebuffer_work [2022-10-17 11:03:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_init_framebuffer_work [2022-10-17 11:03:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-10-17 11:03:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-10-17 11:03:56,399 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-17 11:03:56,399 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-17 11:03:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure dlfb_ops_set_par [2022-10-17 11:03:56,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dlfb_ops_set_par [2022-10-17 11:03:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2022-10-17 11:03:56,400 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2022-10-17 11:03:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:03:56,400 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-17 11:03:56,401 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-17 11:03:56,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:03:56,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:03:57,154 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:03:57,158 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:03:57,427 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-17 11:04:10,225 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:04:10,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:04:10,245 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:04:10,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:10 BoogieIcfgContainer [2022-10-17 11:04:10,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:04:10,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:04:10,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:04:10,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:04:10,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:03:51" (1/3) ... [2022-10-17 11:04:10,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48df7fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:04:10, skipping insertion in model container [2022-10-17 11:04:10,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:03:54" (2/3) ... [2022-10-17 11:04:10,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48df7fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:04:10, skipping insertion in model container [2022-10-17 11:04:10,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:04:10" (3/3) ... [2022-10-17 11:04:10,259 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--video--fbdev--udlfb.ko-entry_point.cil.out.i [2022-10-17 11:04:10,277 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:04:10,277 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:04:10,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:04:10,370 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@44846116, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:04:10,370 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:04:10,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 1301 states, 925 states have (on average 1.3383783783783785) internal successors, (1238), 956 states have internal predecessors, (1238), 294 states have call successors, (294), 81 states have call predecessors, (294), 80 states have return successors, (286), 281 states have call predecessors, (286), 286 states have call successors, (286) [2022-10-17 11:04:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2022-10-17 11:04:10,417 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:04:10,418 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:04:10,418 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:04:10,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:04:10,424 INFO L85 PathProgramCache]: Analyzing trace with hash -10971896, now seen corresponding path program 1 times [2022-10-17 11:04:10,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:04:10,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46926526] [2022-10-17 11:04:10,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:04:10,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:04:11,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 11:04:11,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:11,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-17 11:04:11,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:11,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-17 11:04:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:11,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-17 11:04:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:11,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 11:04:11,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:11,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:11,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:11,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-17 11:04:12,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:12,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-17 11:04:12,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-10-17 11:04:12,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:12,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-17 11:04:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-10-17 11:04:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:12,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-10-17 11:04:12,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-10-17 11:04:12,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-17 11:04:12,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-10-17 11:04:12,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-10-17 11:04:12,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-10-17 11:04:12,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-10-17 11:04:12,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-10-17 11:04:12,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-10-17 11:04:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-10-17 11:04:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-10-17 11:04:12,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-10-17 11:04:12,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2022-10-17 11:04:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2022-10-17 11:04:12,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-10-17 11:04:12,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-10-17 11:04:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2022-10-17 11:04:12,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-10-17 11:04:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-10-17 11:04:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-17 11:04:12,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:04:12,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2004 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2004 trivial. 0 not checked. [2022-10-17 11:04:12,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:04:12,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46926526] [2022-10-17 11:04:12,566 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46926526] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:04:12,567 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:04:12,567 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 11:04:12,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726826458] [2022-10-17 11:04:12,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:04:12,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 11:04:12,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:04:12,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 11:04:12,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-17 11:04:12,608 INFO L87 Difference]: Start difference. First operand has 1301 states, 925 states have (on average 1.3383783783783785) internal successors, (1238), 956 states have internal predecessors, (1238), 294 states have call successors, (294), 81 states have call predecessors, (294), 80 states have return successors, (286), 281 states have call predecessors, (286), 286 states have call successors, (286) Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (32), 5 states have call predecessors, (32), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2022-10-17 11:04:15,955 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-17 11:04:17,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []