./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-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:05,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:05,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:05,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:05,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:05,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:05,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:05,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:05,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:05,811 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:05,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:05,814 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:05,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:05,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:05,819 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:05,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:05,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:05,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:05,828 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:05,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:05,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:05,842 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:05,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:05,847 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:05,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:05,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:05,857 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:05,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:05,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:05,861 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:05,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:05,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:05,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:05,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:05,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:05,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:05,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:05,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:05,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:05,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:05,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:05,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-19 14:00:05,920 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:05,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:05,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:05,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:05,923 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:05,923 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:05,923 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:05,923 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:00:05,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:05,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:05,931 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:00:05,931 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:00:05,932 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:05,932 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:00:05,932 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:00:05,932 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:00:05,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:05,933 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:00:05,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:05,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:05,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:05,934 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:05,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:05,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:05,935 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:05,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:05,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:05,936 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:05,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:05,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:05,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:05,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:05,939 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:00:05,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:00:05,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:05,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:05,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:05,940 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f [2021-11-19 14:00:06,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:06,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:06,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:06,248 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:06,248 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:06,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-19 14:00:06,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/305d3d097/e00c272739e54302b085dcbc031e6da1/FLAGc6604e9ec [2021-11-19 14:00:07,324 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:07,325 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-19 14:00:07,393 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/305d3d097/e00c272739e54302b085dcbc031e6da1/FLAGc6604e9ec [2021-11-19 14:00:07,656 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/305d3d097/e00c272739e54302b085dcbc031e6da1 [2021-11-19 14:00:07,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:00:07,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:00:07,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:07,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:00:07,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:00:07,670 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cc7989 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:07, skipping insertion in model container [2021-11-19 14:00:07,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:07" (1/1) ... [2021-11-19 14:00:07,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:00:07,856 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:10,304 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:10,870 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,087 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,109 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,438 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,440 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,443 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,445 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,447 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,451 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,858 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,860 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,880 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,881 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,881 WARN L571 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-19 14:00:11,916 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_5c7de200-4e8c-4c63-b060-308abc5b2982/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2021-11-19 14:00:11,975 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-19 14:00:11,984 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:12,132 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-19 14:00:12,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5e5ea268 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:12, skipping insertion in model container [2021-11-19 14:00:12,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:12,134 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 14:00:12,136 INFO L158 Benchmark]: Toolchain (without parser) took 4473.88ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 93.3MB in the beginning and 88.1MB in the end (delta: 5.2MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2021-11-19 14:00:12,137 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 68.2MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:00:12,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 4468.76ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 92.7MB in the beginning and 88.1MB in the end (delta: 4.6MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. [2021-11-19 14:00:12,141 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 96.5MB. Free memory was 68.2MB in the beginning and 68.2MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 4468.76ms. Allocated memory was 123.7MB in the beginning and 192.9MB in the end (delta: 69.2MB). Free memory was 92.7MB in the beginning and 88.1MB in the end (delta: 4.6MB). Peak memory consumption was 73.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 4614]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:00:14,402 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:00:14,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:00:14,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:00:14,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:00:14,465 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:00:14,467 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:00:14,471 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:00:14,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:00:14,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:00:14,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:00:14,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:00:14,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:00:14,492 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:00:14,494 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:00:14,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:00:14,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:00:14,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:00:14,505 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:00:14,513 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:00:14,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:00:14,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:00:14,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:00:14,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:00:14,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:00:14,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:00:14,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:00:14,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:00:14,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:00:14,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:00:14,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:00:14,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:00:14,537 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:00:14,538 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:00:14,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:00:14,540 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:00:14,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:00:14,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:00:14,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:00:14,553 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:00:14,554 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:00:14,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-19 14:00:14,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:00:14,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:00:14,606 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:00:14,606 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:00:14,607 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:00:14,607 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:00:14,607 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:00:14,607 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:00:14,608 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:00:14,608 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:00:14,609 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:00:14,609 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:00:14,609 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:00:14,609 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:00:14,610 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:00:14,610 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:00:14,610 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:00:14,610 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:00:14,611 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:00:14,611 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:00:14,611 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:00:14,611 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:00:14,611 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:00:14,612 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:00:14,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:14,612 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:00:14,612 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:00:14,613 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:00:14,613 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:00:14,613 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:00:14,613 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:00:14,614 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:00:14,614 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:00:14,614 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bf66c918295559060a8e3ec892f4cbf4fc66cf4b9f3e9338e9b0a339b20bc2f [2021-11-19 14:00:14,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:00:14,972 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:00:14,977 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:00:14,979 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:00:14,979 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:00:14,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-19 14:00:15,049 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/3924dea72/2c3a46ad94eb4bf4a9e61075be580233/FLAG6aeb94f79 [2021-11-19 14:00:16,078 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:00:16,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-19 14:00:16,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/3924dea72/2c3a46ad94eb4bf4a9e61075be580233/FLAG6aeb94f79 [2021-11-19 14:00:16,420 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/data/3924dea72/2c3a46ad94eb4bf4a9e61075be580233 [2021-11-19 14:00:16,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:00:16,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:00:16,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:16,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:00:16,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:00:16,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:16" (1/1) ... [2021-11-19 14:00:16,435 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a14d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:16, skipping insertion in model container [2021-11-19 14:00:16,436 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:00:16" (1/1) ... [2021-11-19 14:00:16,443 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:00:16,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:20,833 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_5c7de200-4e8c-4c63-b060-308abc5b2982/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2021-11-19 14:00:20,894 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-19 14:00:20,904 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:21,033 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 14:00:21,145 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:00:21,781 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_5c7de200-4e8c-4c63-b060-308abc5b2982/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2021-11-19 14:00:21,788 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-19 14:00:21,794 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:21,872 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:00:22,485 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_5c7de200-4e8c-4c63-b060-308abc5b2982/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i[416114,416127] [2021-11-19 14:00:22,492 WARN L612 FunctionHandler]: implicit declaration of function ldv_xmalloc [2021-11-19 14:00:22,494 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:00:22,768 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:00:22,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22 WrapperNode [2021-11-19 14:00:22,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:00:22,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:00:22,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:00:22,770 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:00:22,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:23,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:23,524 INFO L137 Inliner]: procedures = 431, calls = 9040, calls flagged for inlining = 165, calls inlined = 145, statements flattened = 13566 [2021-11-19 14:00:23,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:00:23,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:00:23,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:00:23,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:00:23,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:23,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:23,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:23,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:24,116 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:24,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:24,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:24,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:00:24,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:00:24,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:00:24,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:00:24,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (1/1) ... [2021-11-19 14:00:24,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:00:24,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:00:24,319 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:00:24,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:00:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure fb_timings_vfreq [2021-11-19 14:00:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_timings_vfreq [2021-11-19 14:00:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-11-19 14:00:24,373 INFO L130 BoogieDeclarations]: Found specification of procedure fb_create_modedb [2021-11-19 14:00:24,373 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_create_modedb [2021-11-19 14:00:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-19 14:00:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-19 14:00:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_mkwrite [2021-11-19 14:00:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_mkwrite [2021-11-19 14:00:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-19 14:00:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-19 14:00:24,374 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-11-19 14:00:24,374 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-11-19 14:00:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure fb_timings_dclk [2021-11-19 14:00:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_timings_dclk [2021-11-19 14:00:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_limits_block [2021-11-19 14:00:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_limits_block [2021-11-19 14:00:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_monitor_block [2021-11-19 14:00:24,375 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_monitor_block [2021-11-19 14:00:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 14:00:24,375 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-19 14:00:24,376 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-19 14:00:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-19 14:00:24,376 INFO L130 BoogieDeclarations]: Found specification of procedure put_fb_info [2021-11-19 14:00:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure put_fb_info [2021-11-19 14:00:24,376 INFO L130 BoogieDeclarations]: Found specification of procedure fb_add_videomode [2021-11-19 14:00:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_add_videomode [2021-11-19 14:00:24,376 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_timing_block [2021-11-19 14:00:24,376 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_timing_block [2021-11-19 14:00:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:00:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure pm_vt_switch_required [2021-11-19 14:00:24,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_vt_switch_required [2021-11-19 14:00:24,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-19 14:00:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:00:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-19 14:00:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_ascii_block [2021-11-19 14:00:24,378 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_ascii_block [2021-11-19 14:00:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-19 14:00:24,378 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-19 14:00:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-19 14:00:24,379 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-11-19 14:00:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-11-19 14:00:24,379 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-19 14:00:24,379 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-19 14:00:24,379 INFO L130 BoogieDeclarations]: Found specification of procedure fb_timings_hfreq [2021-11-19 14:00:24,380 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_timings_hfreq [2021-11-19 14:00:24,380 INFO L130 BoogieDeclarations]: Found specification of procedure do_unregister_framebuffer [2021-11-19 14:00:24,380 INFO L138 BoogieDeclarations]: Found implementation of procedure do_unregister_framebuffer [2021-11-19 14:00:24,381 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_fault [2021-11-19 14:00:24,381 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_fault [2021-11-19 14:00:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure fb_seq_show [2021-11-19 14:00:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_seq_show [2021-11-19 14:00:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-19 14:00:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-19 14:00:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure fb_pan_display [2021-11-19 14:00:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_pan_display [2021-11-19 14:00:24,382 INFO L130 BoogieDeclarations]: Found specification of procedure fb_be_math [2021-11-19 14:00:24,382 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_be_math [2021-11-19 14:00:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure fb_var_to_videomode [2021-11-19 14:00:24,383 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_var_to_videomode [2021-11-19 14:00:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_vblank [2021-11-19 14:00:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_vblank [2021-11-19 14:00:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure fb_mode_is_equal [2021-11-19 14:00:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_mode_is_equal [2021-11-19 14:00:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-19 14:00:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-19 14:00:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_framebuffer [2021-11-19 14:00:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_framebuffer [2021-11-19 14:00:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-19 14:00:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-19 14:00:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:00:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~C_INT [2021-11-19 14:00:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-19 14:00:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-19 14:00:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2021-11-19 14:00:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2021-11-19 14:00:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 14:00:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure fb_show_logo_line [2021-11-19 14:00:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_show_logo_line [2021-11-19 14:00:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-11-19 14:00:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-11-19 14:00:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_color_depth [2021-11-19 14:00:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_color_depth [2021-11-19 14:00:24,387 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:00:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 14:00:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-19 14:00:24,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-19 14:00:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-19 14:00:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:00:24,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-19 14:00:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-19 14:00:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure do_fb_ioctl [2021-11-19 14:00:24,389 INFO L138 BoogieDeclarations]: Found implementation of procedure do_fb_ioctl [2021-11-19 14:00:24,389 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_logocmap [2021-11-19 14:00:24,389 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_logocmap [2021-11-19 14:00:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure lock_page [2021-11-19 14:00:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_page [2021-11-19 14:00:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure fb_copy_cmap [2021-11-19 14:00:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_copy_cmap [2021-11-19 14:00:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-11-19 14:00:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-11-19 14:00:24,390 INFO L130 BoogieDeclarations]: Found specification of procedure fb_notifier_call_chain [2021-11-19 14:00:24,390 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_notifier_call_chain [2021-11-19 14:00:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure edid_check_header [2021-11-19 14:00:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_check_header [2021-11-19 14:00:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_set_page_dirty [2021-11-19 14:00:24,391 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_set_page_dirty [2021-11-19 14:00:24,391 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_delayed_work [2021-11-19 14:00:24,392 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_delayed_work [2021-11-19 14:00:24,393 INFO L130 BoogieDeclarations]: Found specification of procedure calc_mode_timings [2021-11-19 14:00:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure calc_mode_timings [2021-11-19 14:00:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-19 14:00:24,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:00:24,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:00:24,396 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-11-19 14:00:24,397 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-11-19 14:00:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 14:00:24,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-19 14:00:24,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:00:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-19 14:00:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-19 14:00:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-19 14:00:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-19 14:00:24,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-19 14:00:24,404 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2021-11-19 14:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2021-11-19 14:00:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure fb_write [2021-11-19 14:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_write [2021-11-19 14:00:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2021-11-19 14:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2021-11-19 14:00:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure seq_read [2021-11-19 14:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_read [2021-11-19 14:00:24,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-11-19 14:00:24,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-11-19 14:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modelist [2021-11-19 14:00:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modelist [2021-11-19 14:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-19 14:00:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-19 14:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-19 14:00:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-19 14:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work_on [2021-11-19 14:00:24,406 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work_on [2021-11-19 14:00:24,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 14:00:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 14:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-19 14:00:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-19 14:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure edid_checksum [2021-11-19 14:00:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_checksum [2021-11-19 14:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure do_remove_conflicting_framebuffers [2021-11-19 14:00:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure do_remove_conflicting_framebuffers [2021-11-19 14:00:24,407 INFO L130 BoogieDeclarations]: Found specification of procedure fb_release [2021-11-19 14:00:24,407 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_release [2021-11-19 14:00:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:00:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-19 14:00:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-19 14:00:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure get_fb_info [2021-11-19 14:00:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure get_fb_info [2021-11-19 14:00:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure copy_in_user [2021-11-19 14:00:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_in_user [2021-11-19 14:00:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 14:00:24,408 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_work [2021-11-19 14:00:24,408 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_work [2021-11-19 14:00:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure fb_dealloc_cmap [2021-11-19 14:00:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_dealloc_cmap [2021-11-19 14:00:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-19 14:00:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-19 14:00:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-19 14:00:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:00:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure disable_work_1 [2021-11-19 14:00:24,409 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_work_1 [2021-11-19 14:00:24,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-19 14:00:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_fsync [2021-11-19 14:00:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_fsync [2021-11-19 14:00:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-19 14:00:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-19 14:00:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2021-11-19 14:00:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2021-11-19 14:00:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure proc_fb_open [2021-11-19 14:00:24,410 INFO L138 BoogieDeclarations]: Found implementation of procedure proc_fb_open [2021-11-19 14:00:24,410 INFO L130 BoogieDeclarations]: Found specification of procedure edid_is_serial_block [2021-11-19 14:00:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure edid_is_serial_block [2021-11-19 14:00:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-11-19 14:00:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-11-19 14:00:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_fb_info [2021-11-19 14:00:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_fb_info [2021-11-19 14:00:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure get_std_timing [2021-11-19 14:00:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure get_std_timing [2021-11-19 14:00:24,411 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2021-11-19 14:00:24,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_UINT~X~C_ULONG~TO~C_INT [2021-11-19 14:00:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_cmap [2021-11-19 14:00:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_cmap [2021-11-19 14:00:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2021-11-19 14:00:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2021-11-19 14:00:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure file_fb_info [2021-11-19 14:00:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure file_fb_info [2021-11-19 14:00:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_page [2021-11-19 14:00:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_page [2021-11-19 14:00:24,412 INFO L130 BoogieDeclarations]: Found specification of procedure fb_mmap [2021-11-19 14:00:24,412 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_mmap [2021-11-19 14:00:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_from_videomode [2021-11-19 14:00:24,413 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_from_videomode [2021-11-19 14:00:24,413 INFO L130 BoogieDeclarations]: Found specification of procedure fb_destroy_modedb [2021-11-19 14:00:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_destroy_modedb [2021-11-19 14:00:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure fb_set_var [2021-11-19 14:00:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_set_var [2021-11-19 14:00:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure lock_fb_info [2021-11-19 14:00:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_fb_info [2021-11-19 14:00:24,414 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:00:24,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~C_INT [2021-11-19 14:00:24,415 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-19 14:00:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-19 14:00:24,415 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-19 14:00:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-19 14:00:24,415 INFO L130 BoogieDeclarations]: Found specification of procedure safe_shift [2021-11-19 14:00:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_shift [2021-11-19 14:00:24,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 14:00:24,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~C_ULONG~X~$Pointer$~TO~C_LONG [2021-11-19 14:00:24,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-19 14:00:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure fb_deferred_io_open [2021-11-19 14:00:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_deferred_io_open [2021-11-19 14:00:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-19 14:00:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-19 14:00:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-19 14:00:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure seq_release [2021-11-19 14:00:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_release [2021-11-19 14:00:24,416 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-19 14:00:24,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-19 14:00:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure fb_read [2021-11-19 14:00:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_read [2021-11-19 14:00:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-19 14:00:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-19 14:00:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-19 14:00:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-19 14:00:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-11-19 14:00:24,417 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-11-19 14:00:24,417 INFO L130 BoogieDeclarations]: Found specification of procedure fb_open [2021-11-19 14:00:24,418 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_open [2021-11-19 14:00:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure fb_videomode_to_var [2021-11-19 14:00:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_videomode_to_var [2021-11-19 14:00:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2021-11-19 14:00:24,422 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2021-11-19 14:00:24,422 INFO L130 BoogieDeclarations]: Found specification of procedure fb_blank [2021-11-19 14:00:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_blank [2021-11-19 14:00:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure console_lock [2021-11-19 14:00:24,423 INFO L138 BoogieDeclarations]: Found implementation of procedure console_lock [2021-11-19 14:00:24,423 INFO L130 BoogieDeclarations]: Found specification of procedure console_unlock [2021-11-19 14:00:24,424 INFO L138 BoogieDeclarations]: Found implementation of procedure console_unlock [2021-11-19 14:00:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-11-19 14:00:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-11-19 14:00:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure fix_edid [2021-11-19 14:00:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure fix_edid [2021-11-19 14:00:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure check_edid [2021-11-19 14:00:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure check_edid [2021-11-19 14:00:24,425 INFO L130 BoogieDeclarations]: Found specification of procedure fb_alloc_cmap_gfp [2021-11-19 14:00:24,425 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_alloc_cmap_gfp [2021-11-19 14:00:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure fb_get_hblank_by_hfreq [2021-11-19 14:00:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_get_hblank_by_hfreq [2021-11-19 14:00:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure get_detailed_timing [2021-11-19 14:00:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure get_detailed_timing [2021-11-19 14:00:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure fb_seq_stop [2021-11-19 14:00:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_seq_stop [2021-11-19 14:00:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:00:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-19 14:00:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure fb_show_logo [2021-11-19 14:00:24,426 INFO L138 BoogieDeclarations]: Found implementation of procedure fb_show_logo [2021-11-19 14:00:24,426 INFO L130 BoogieDeclarations]: Found specification of procedure copy_string [2021-11-19 14:00:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_string [2021-11-19 14:00:24,427 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-11-19 14:00:24,427 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-11-19 14:00:25,730 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:00:25,733 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:01:05,904 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-19 14:04:05,913 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:04:05,948 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:04:05,964 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 14:04:05,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:05 BoogieIcfgContainer [2021-11-19 14:04:05,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:04:05,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:04:05,973 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:04:05,976 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:04:05,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:00:16" (1/3) ... [2021-11-19 14:04:05,977 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f5eb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:05, skipping insertion in model container [2021-11-19 14:04:05,977 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:00:22" (2/3) ... [2021-11-19 14:04:05,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f5eb50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:04:05, skipping insertion in model container [2021-11-19 14:04:05,978 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:04:05" (3/3) ... [2021-11-19 14:04:05,979 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--video--fbdev--core--fb.ko-entry_point.cil.out.i [2021-11-19 14:04:05,985 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:04:05,985 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:04:06,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:04:06,076 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:04:06,076 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:04:06,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 2538 states, 1950 states have (on average 1.435897435897436) internal successors, (2800), 1992 states have internal predecessors, (2800), 470 states have call successors, (470), 117 states have call predecessors, (470), 116 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) [2021-11-19 14:04:06,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-19 14:04:06,194 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:04:06,195 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:04:06,195 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:04:06,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:04:06,201 INFO L85 PathProgramCache]: Analyzing trace with hash 348976267, now seen corresponding path program 1 times [2021-11-19 14:04:06,247 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:04:06,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [295529746] [2021-11-19 14:04:06,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:04:06,251 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:04:06,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:04:06,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:04:06,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:05:34,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:05:37,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 13882 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:05:37,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:05:42,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2021-11-19 14:05:42,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:05:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 10 proven. 20 refuted. 0 times theorem prover too weak. 1083 trivial. 0 not checked. [2021-11-19 14:05:45,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:05:45,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [295529746] [2021-11-19 14:05:45,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [295529746] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:05:45,181 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:05:45,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2021-11-19 14:05:45,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288030186] [2021-11-19 14:05:45,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:05:45,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:05:45,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:05:45,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:05:45,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:05:45,227 INFO L87 Difference]: Start difference. First operand has 2538 states, 1950 states have (on average 1.435897435897436) internal successors, (2800), 1992 states have internal predecessors, (2800), 470 states have call successors, (470), 117 states have call predecessors, (470), 116 states have return successors, (463), 452 states have call predecessors, (463), 463 states have call successors, (463) Second operand has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 14:05:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:05:45,515 INFO L93 Difference]: Finished difference Result 5071 states and 7577 transitions. [2021-11-19 14:05:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:05:45,518 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 288 [2021-11-19 14:05:45,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:05:45,575 INFO L225 Difference]: With dead ends: 5071 [2021-11-19 14:05:45,575 INFO L226 Difference]: Without dead ends: 2519 [2021-11-19 14:05:45,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:05:45,613 INFO L933 BasicCegarLoop]: 3728 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:05:45,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 3728 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:05:45,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2519 states. [2021-11-19 14:05:45,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2519 to 2519. [2021-11-19 14:05:45,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2519 states, 1940 states have (on average 1.4309278350515464) internal successors, (2776), 1973 states have internal predecessors, (2776), 463 states have call successors, (463), 116 states have call predecessors, (463), 115 states have return successors, (461), 450 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-19 14:05:45,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 3700 transitions. [2021-11-19 14:05:45,897 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 3700 transitions. Word has length 288 [2021-11-19 14:05:45,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:05:45,899 INFO L470 AbstractCegarLoop]: Abstraction has 2519 states and 3700 transitions. [2021-11-19 14:05:45,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 33.5) internal successors, (67), 2 states have internal predecessors, (67), 2 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-11-19 14:05:45,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 3700 transitions. [2021-11-19 14:05:45,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2021-11-19 14:05:45,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:05:45,911 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:05:46,137 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forcibly destroying the process [2021-11-19 14:05:46,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 137 [2021-11-19 14:05:46,221 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:05:46,221 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:05:46,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:05:46,222 INFO L85 PathProgramCache]: Analyzing trace with hash 725366169, now seen corresponding path program 1 times [2021-11-19 14:05:46,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:05:46,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1969688384] [2021-11-19 14:05:46,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:05:46,250 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:05:46,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:05:46,256 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:05:46,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:07:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:07:23,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 13882 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:07:24,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:07:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2021-11-19 14:07:28,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:07:32,995 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2021-11-19 14:07:32,996 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:07:32,996 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1969688384] [2021-11-19 14:07:32,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1969688384] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:07:32,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:07:33,001 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2021-11-19 14:07:33,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41967162] [2021-11-19 14:07:33,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:07:33,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 14:07:33,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:07:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 14:07:33,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 14:07:33,008 INFO L87 Difference]: Start difference. First operand 2519 states and 3700 transitions. Second operand has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:07:36,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:07:36,452 INFO L93 Difference]: Finished difference Result 5026 states and 7454 transitions. [2021-11-19 14:07:36,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:07:36,453 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 288 [2021-11-19 14:07:36,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:07:36,475 INFO L225 Difference]: With dead ends: 5026 [2021-11-19 14:07:36,475 INFO L226 Difference]: Without dead ends: 2520 [2021-11-19 14:07:36,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 567 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:07:36,496 INFO L933 BasicCegarLoop]: 3683 mSDtfsCounter, 6 mSDsluCounter, 14693 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 18376 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:07:36,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 18376 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-19 14:07:36,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2021-11-19 14:07:36,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 2520. [2021-11-19 14:07:36,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2520 states, 1941 states have (on average 1.4307058217413704) internal successors, (2777), 1974 states have internal predecessors, (2777), 463 states have call successors, (463), 116 states have call predecessors, (463), 115 states have return successors, (461), 450 states have call predecessors, (461), 461 states have call successors, (461) [2021-11-19 14:07:36,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2520 states to 2520 states and 3701 transitions. [2021-11-19 14:07:36,609 INFO L78 Accepts]: Start accepts. Automaton has 2520 states and 3701 transitions. Word has length 288 [2021-11-19 14:07:36,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:07:36,612 INFO L470 AbstractCegarLoop]: Abstraction has 2520 states and 3701 transitions. [2021-11-19 14:07:36,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.6) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-11-19 14:07:36,613 INFO L276 IsEmpty]: Start isEmpty. Operand 2520 states and 3701 transitions. [2021-11-19 14:07:36,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2021-11-19 14:07:36,621 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:07:36,621 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:07:36,849 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forcibly destroying the process [2021-11-19 14:07:36,959 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 137 [2021-11-19 14:07:36,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:07:36,959 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:07:36,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:07:36,960 INFO L85 PathProgramCache]: Analyzing trace with hash 198668349, now seen corresponding path program 1 times [2021-11-19 14:07:36,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:07:36,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753301146] [2021-11-19 14:07:36,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:07:36,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:07:36,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:07:36,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:07:37,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 14:09:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:17,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 13952 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:09:17,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:22,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 156 proven. 1 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2021-11-19 14:09:22,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:27,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2021-11-19 14:09:27,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:09:27,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753301146] [2021-11-19 14:09:27,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753301146] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:09:27,331 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [300432107] [2021-11-19 14:09:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:27,331 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:09:27,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:09:27,334 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:09:27,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-19 14:09:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:09:32,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 13952 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:09:32,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:09:45,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2021-11-19 14:09:45,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:09:48,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2021-11-19 14:09:48,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [300432107] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:09:48,596 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:09:48,596 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [7, 7] total 12 [2021-11-19 14:09:48,597 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053592976] [2021-11-19 14:09:48,597 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:09:48,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:09:48,600 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:09:48,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:09:48,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:09:48,601 INFO L87 Difference]: Start difference. First operand 2520 states and 3701 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:09:49,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:09:49,011 INFO L93 Difference]: Finished difference Result 7456 states and 11017 transitions. [2021-11-19 14:09:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:09:49,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 302 [2021-11-19 14:09:49,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:09:49,075 INFO L225 Difference]: With dead ends: 7456 [2021-11-19 14:09:49,076 INFO L226 Difference]: Without dead ends: 4979 [2021-11-19 14:09:49,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1204 GetRequests, 1194 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:09:49,095 INFO L933 BasicCegarLoop]: 4230 mSDtfsCounter, 3591 mSDsluCounter, 3652 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3591 SdHoareTripleChecker+Valid, 7882 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:09:49,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3591 Valid, 7882 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:09:49,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4979 states. [2021-11-19 14:09:49,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4979 to 4976. [2021-11-19 14:09:49,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 3844 states have (on average 1.4341831425598335) internal successors, (5513), 3909 states have internal predecessors, (5513), 902 states have call successors, (902), 230 states have call predecessors, (902), 229 states have return successors, (929), 878 states have call predecessors, (929), 900 states have call successors, (929) [2021-11-19 14:09:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 7344 transitions. [2021-11-19 14:09:49,342 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 7344 transitions. Word has length 302 [2021-11-19 14:09:49,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:09:49,345 INFO L470 AbstractCegarLoop]: Abstraction has 4976 states and 7344 transitions. [2021-11-19 14:09:49,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (49), 3 states have call predecessors, (49), 2 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2021-11-19 14:09:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 7344 transitions. [2021-11-19 14:09:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-11-19 14:09:49,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:09:49,354 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:09:49,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:09:49,773 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forcibly destroying the process [2021-11-19 14:09:49,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 137 [2021-11-19 14:09:49,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:09:49,863 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:09:49,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:09:49,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1851357352, now seen corresponding path program 1 times [2021-11-19 14:09:49,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:09:49,879 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042884623] [2021-11-19 14:09:49,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:09:49,879 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:09:49,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:09:49,880 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:09:49,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 14:11:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:36,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 14000 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:11:36,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:41,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 156 proven. 1 refuted. 0 times theorem prover too weak. 1243 trivial. 0 not checked. [2021-11-19 14:11:41,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:47,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 1269 trivial. 0 not checked. [2021-11-19 14:11:47,428 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:11:47,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042884623] [2021-11-19 14:11:47,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042884623] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:11:47,428 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [801204316] [2021-11-19 14:11:47,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:11:47,428 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:11:47,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:11:47,430 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:11:47,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-19 14:11:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:11:52,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 14000 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:11:52,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:11:54,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2021-11-19 14:11:54,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:11:55,657 INFO L134 CoverageAnalysis]: Checked inductivity of 1400 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1400 trivial. 0 not checked. [2021-11-19 14:11:55,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [801204316] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:11:55,657 INFO L186 FreeRefinementEngine]: Found 2 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:11:55,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7, 7] total 12 [2021-11-19 14:11:55,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676611200] [2021-11-19 14:11:55,658 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:11:55,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:11:55,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:11:55,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:11:55,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:11:55,660 INFO L87 Difference]: Start difference. First operand 4976 states and 7344 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:12:00,294 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.62s for a HTC check with result VALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 14:12:01,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:12:01,757 INFO L93 Difference]: Finished difference Result 11782 states and 17257 transitions. [2021-11-19 14:12:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:12:01,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 311 [2021-11-19 14:12:01,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:12:01,816 INFO L225 Difference]: With dead ends: 11782 [2021-11-19 14:12:01,817 INFO L226 Difference]: Without dead ends: 6857 [2021-11-19 14:12:01,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1240 GetRequests, 1230 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:12:01,848 INFO L933 BasicCegarLoop]: 3842 mSDtfsCounter, 1389 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1389 SdHoareTripleChecker+Valid, 7428 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-19 14:12:01,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1389 Valid, 7428 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2021-11-19 14:12:01,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6857 states. [2021-11-19 14:12:02,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6857 to 6838. [2021-11-19 14:12:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6838 states, 5306 states have (on average 1.4297022238974746) internal successors, (7586), 5417 states have internal predecessors, (7586), 1176 states have call successors, (1176), 356 states have call predecessors, (1176), 355 states have return successors, (1203), 1130 states have call predecessors, (1203), 1174 states have call successors, (1203) [2021-11-19 14:12:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6838 states to 6838 states and 9965 transitions. [2021-11-19 14:12:02,340 INFO L78 Accepts]: Start accepts. Automaton has 6838 states and 9965 transitions. Word has length 311 [2021-11-19 14:12:02,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:12:02,341 INFO L470 AbstractCegarLoop]: Abstraction has 6838 states and 9965 transitions. [2021-11-19 14:12:02,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-11-19 14:12:02,343 INFO L276 IsEmpty]: Start isEmpty. Operand 6838 states and 9965 transitions. [2021-11-19 14:12:02,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-11-19 14:12:02,355 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:12:02,356 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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] [2021-11-19 14:12:02,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-19 14:12:02,781 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2021-11-19 14:12:02,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 137 [2021-11-19 14:12:02,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:12:02,892 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:12:02,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:12:02,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1690024745, now seen corresponding path program 1 times [2021-11-19 14:12:02,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:12:02,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1457175350] [2021-11-19 14:12:02,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:12:02,909 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:12:02,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:12:02,910 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:12:02,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 14:13:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:13:37,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 14263 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-19 14:13:37,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:13:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 352 proven. 1 refuted. 0 times theorem prover too weak. 1264 trivial. 0 not checked. [2021-11-19 14:13:44,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:13:50,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 0 proven. 131 refuted. 0 times theorem prover too weak. 1486 trivial. 0 not checked. [2021-11-19 14:13:50,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:13:50,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1457175350] [2021-11-19 14:13:50,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1457175350] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:13:50,010 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2030806445] [2021-11-19 14:13:50,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:13:50,010 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 14:13:50,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 14:13:50,012 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 14:13:50,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7de200-4e8c-4c63-b060-308abc5b2982/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process