./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--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8 --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 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:59:38,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:59:38,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:59:38,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:59:38,134 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:59:38,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:59:38,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:59:38,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:59:38,145 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:59:38,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:59:38,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:59:38,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:59:38,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:59:38,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:59:38,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:59:38,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:59:38,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:59:38,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:59:38,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:59:38,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:59:38,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:59:38,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:59:38,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:59:38,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:59:38,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:59:38,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:59:38,200 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:59:38,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:59:38,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:59:38,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:59:38,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:59:38,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:59:38,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:59:38,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:59:38,213 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:59:38,213 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:59:38,214 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:59:38,214 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:59:38,215 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:59:38,216 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:59:38,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:59:38,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:59:38,264 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:59:38,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:59:38,265 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:59:38,266 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:59:38,266 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:59:38,266 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:59:38,267 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:59:38,267 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:59:38,267 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:59:38,267 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:59:38,268 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:59:38,268 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:59:38,268 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:59:38,268 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:59:38,269 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:59:38,269 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:59:38,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:59:38,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:59:38,270 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:59:38,270 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:59:38,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:59:38,271 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:59:38,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:59:38,271 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:59:38,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:59:38,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:59:38,272 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:59:38,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:38,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:59:38,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:59:38,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:59:38,274 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:59:38,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:59:38,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:59:38,274 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:59:38,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:59:38,275 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_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 [2021-11-07 00:59:38,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:59:38,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:59:38,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:59:38,576 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:59:38,577 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:59:38,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-07 00:59:38,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/d143f60f8/9f79c5ae5167453891220d4cb214a9bc/FLAG88cae155a [2021-11-07 00:59:39,874 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:59:39,875 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-07 00:59:39,950 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/d143f60f8/9f79c5ae5167453891220d4cb214a9bc/FLAG88cae155a [2021-11-07 00:59:40,019 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/d143f60f8/9f79c5ae5167453891220d4cb214a9bc [2021-11-07 00:59:40,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:59:40,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:59:40,026 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:40,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:59:40,060 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:59:40,061 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:40" (1/1) ... [2021-11-07 00:59:40,062 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d8053 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:40, skipping insertion in model container [2021-11-07 00:59:40,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:40" (1/1) ... [2021-11-07 00:59:40,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:59:40,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:40,868 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-07 00:59:42,742 WARN L228 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_0d9f7a71-7247-43d1-a798-f11a26cc0323/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-07 00:59:42,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:42,907 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) [2021-11-07 00:59:42,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6a5d18f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:42, skipping insertion in model container [2021-11-07 00:59:42,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:42,924 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:59:42,927 INFO L168 Benchmark]: Toolchain (without parser) took 2901.40 ms. Allocated memory was 115.3 MB in the beginning and 157.3 MB in the end (delta: 41.9 MB). Free memory was 63.6 MB in the beginning and 100.8 MB in the end (delta: -37.2 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-11-07 00:59:42,927 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:59:42,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2897.94 ms. Allocated memory was 115.3 MB in the beginning and 157.3 MB in the end (delta: 41.9 MB). Free memory was 63.5 MB in the beginning and 100.8 MB in the end (delta: -37.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. [2021-11-07 00:59:42,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 36.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2897.94 ms. Allocated memory was 115.3 MB in the beginning and 157.3 MB in the end (delta: 41.9 MB). Free memory was 63.5 MB in the beginning and 100.8 MB in the end (delta: -37.3 MB). Peak memory consumption was 55.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 8993]: 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_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8 --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 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:59:45,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:59:45,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:59:45,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:59:45,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:59:45,780 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:59:45,784 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:59:45,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:59:45,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:59:45,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:59:45,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:59:45,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:59:45,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:59:45,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:59:45,820 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:59:45,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:59:45,826 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:59:45,828 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:59:45,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:59:45,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:59:45,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:59:45,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:59:45,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:59:45,855 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:59:45,862 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:59:45,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:59:45,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:59:45,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:59:45,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:59:45,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:59:45,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:59:45,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:59:45,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:59:45,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:59:45,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:59:45,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:59:45,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:59:45,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:59:45,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:59:45,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:59:45,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:59:45,882 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:59:45,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:59:45,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:59:45,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:59:45,948 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:59:45,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:59:45,949 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:59:45,949 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:59:45,949 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:59:45,950 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:59:45,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:59:45,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:59:45,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:59:45,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:59:45,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:59:45,954 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:59:45,954 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:59:45,955 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:59:45,955 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:59:45,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:59:45,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:59:45,956 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:59:45,956 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:59:45,956 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:59:45,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:45,957 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:59:45,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:59:45,957 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:59:45,957 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:59:45,958 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:59:45,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:59:45,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:59:45,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:59:45,959 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_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fb57b2bb2bc18ca610846448c9906bd8fe64138062c47c98cb2cc2c7b0326e3 [2021-11-07 00:59:46,421 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:59:46,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:59:46,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:59:46,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:59:46,460 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:59:46,462 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-07 00:59:46,571 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/0d2330aba/44812d4e7f9e448db5903c90fead17ab/FLAG69de27efc [2021-11-07 00:59:48,026 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:59:48,028 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-07 00:59:48,131 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/0d2330aba/44812d4e7f9e448db5903c90fead17ab/FLAG69de27efc [2021-11-07 00:59:48,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/data/0d2330aba/44812d4e7f9e448db5903c90fead17ab [2021-11-07 00:59:48,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:59:48,610 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:59:48,611 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:48,612 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:59:48,616 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:59:48,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:48" (1/1) ... [2021-11-07 00:59:48,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20ab720c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:48, skipping insertion in model container [2021-11-07 00:59:48,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:59:48" (1/1) ... [2021-11-07 00:59:48,627 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:59:48,849 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:49,627 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-07 00:59:51,543 WARN L228 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_0d9f7a71-7247-43d1-a798-f11a26cc0323/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-07 00:59:51,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:51,691 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:59:51,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:59:51,857 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-07 00:59:52,367 WARN L228 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_0d9f7a71-7247-43d1-a798-f11a26cc0323/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-07 00:59:52,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:52,394 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:59:52,487 WARN L1236 CHandler]: Detected problem Invalid redeclaration of the name match at C: (*match)(struct device * , struct v4l2_async_subdev * ) [4492] [2021-11-07 00:59:53,086 WARN L228 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_0d9f7a71-7247-43d1-a798-f11a26cc0323/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i[415155,415168] [2021-11-07 00:59:53,097 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:59:53,220 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:59:53,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53 WrapperNode [2021-11-07 00:59:53,221 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:59:53,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:53,223 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:59:53,223 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:59:53,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:53,384 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:53,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:59:53,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:59:53,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:59:53,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:59:54,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,739 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:59:54,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:59:54,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:59:54,740 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:59:54,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (1/1) ... [2021-11-07 00:59:54,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:59:54,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:59:54,777 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:59:54,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:59:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:59:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_free_device [2021-11-07 00:59:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:59:54,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:59:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:59:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:59:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:59:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:59:54,830 INFO L130 BoogieDeclarations]: Found specification of procedure drxk_gate_ctrl [2021-11-07 00:59:54,831 INFO L138 BoogieDeclarations]: Found implementation of procedure drxk_gate_ctrl [2021-11-07 00:59:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-07 00:59:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:59:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:59:54,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:59:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:59:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:59:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:59:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:59:54,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:59:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:59:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-07 00:59:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~C_INT~TO~C_INT [2021-11-07 00:59:54,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:59:54,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:02:45,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:02:45,829 INFO L299 CfgBuilder]: Removed 1922 assume(true) statements. [2021-11-07 01:02:45,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:45 BoogieIcfgContainer [2021-11-07 01:02:45,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:02:45,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:02:45,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:02:45,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:02:45,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:59:48" (1/3) ... [2021-11-07 01:02:45,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753f3fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:45, skipping insertion in model container [2021-11-07 01:02:45,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:59:53" (2/3) ... [2021-11-07 01:02:45,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753f3fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:02:45, skipping insertion in model container [2021-11-07 01:02:45,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:02:45" (3/3) ... [2021-11-07 01:02:45,846 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--media--usb--em28xx--em28xx-dvb.ko-entry_point.cil.out.i [2021-11-07 01:02:45,852 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:02:45,853 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 31 error locations. [2021-11-07 01:02:45,928 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:02:45,937 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 [2021-11-07 01:02:45,939 INFO L340 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2021-11-07 01:02:46,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 2902 states, 2861 states have (on average 1.5718280321565885) internal successors, (4497), 2892 states have internal predecessors, (4497), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-07 01:02:46,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:02:46,029 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:46,030 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:02:46,031 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:02:46,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:46,042 INFO L85 PathProgramCache]: Analyzing trace with hash 237456437, now seen corresponding path program 1 times [2021-11-07 01:02:46,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:46,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153419807] [2021-11-07 01:02:46,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:46,071 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:46,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:46,075 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:46,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:02:57,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:02:58,063 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 01:02:58,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:02:58,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:02:58,462 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:02:58,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:02:58,770 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:02:58,770 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153419807] [2021-11-07 01:02:58,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153419807] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:02:58,771 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:02:58,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:02:58,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652628573] [2021-11-07 01:02:58,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 01:02:58,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:02:58,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 01:02:58,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:02:58,808 INFO L87 Difference]: Start difference. First operand has 2902 states, 2861 states have (on average 1.5718280321565885) internal successors, (4497), 2892 states have internal predecessors, (4497), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:59,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:59,019 INFO L93 Difference]: Finished difference Result 5800 states and 9017 transitions. [2021-11-07 01:02:59,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 01:02:59,021 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 01:02:59,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:59,060 INFO L225 Difference]: With dead ends: 5800 [2021-11-07 01:02:59,060 INFO L226 Difference]: Without dead ends: 2894 [2021-11-07 01:02:59,072 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 01:02:59,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2894 states. [2021-11-07 01:02:59,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2894 to 2894. [2021-11-07 01:02:59,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2854 states have (on average 1.5091100210231254) internal successors, (4307), 2884 states have internal predecessors, (4307), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-07 01:02:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 4321 transitions. [2021-11-07 01:02:59,296 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 4321 transitions. Word has length 16 [2021-11-07 01:02:59,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:59,297 INFO L470 AbstractCegarLoop]: Abstraction has 2894 states and 4321 transitions. [2021-11-07 01:02:59,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:02:59,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 4321 transitions. [2021-11-07 01:02:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-07 01:02:59,302 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:59,303 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:02:59,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:59,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:59,506 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:02:59,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:59,507 INFO L85 PathProgramCache]: Analyzing trace with hash -349349577, now seen corresponding path program 1 times [2021-11-07 01:02:59,519 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:59,519 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183906541] [2021-11-07 01:02:59,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:59,520 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:59,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:59,521 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:59,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:03:10,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:11,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 2133 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:03:11,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:11,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:11,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:12,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:12,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183906541] [2021-11-07 01:03:12,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183906541] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:12,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:12,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:03:12,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072719208] [2021-11-07 01:03:12,072 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:03:12,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:12,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:03:12,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:03:12,075 INFO L87 Difference]: Start difference. First operand 2894 states and 4321 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:16,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:16,120 INFO L93 Difference]: Finished difference Result 11531 states and 17237 transitions. [2021-11-07 01:03:16,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:03:16,122 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-07 01:03:16,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:16,189 INFO L225 Difference]: With dead ends: 11531 [2021-11-07 01:03:16,189 INFO L226 Difference]: Without dead ends: 8644 [2021-11-07 01:03:16,198 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:03:16,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8644 states. [2021-11-07 01:03:16,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8644 to 8524. [2021-11-07 01:03:16,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8524 states, 8466 states have (on average 1.513938105362627) internal successors, (12817), 8496 states have internal predecessors, (12817), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-07 01:03:16,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8524 states to 8524 states and 12859 transitions. [2021-11-07 01:03:16,575 INFO L78 Accepts]: Start accepts. Automaton has 8524 states and 12859 transitions. Word has length 16 [2021-11-07 01:03:16,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:16,576 INFO L470 AbstractCegarLoop]: Abstraction has 8524 states and 12859 transitions. [2021-11-07 01:03:16,577 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:16,577 INFO L276 IsEmpty]: Start isEmpty. Operand 8524 states and 12859 transitions. [2021-11-07 01:03:16,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-07 01:03:16,586 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:16,586 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:16,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:16,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:16,787 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:03:16,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:16,788 INFO L85 PathProgramCache]: Analyzing trace with hash -129558624, now seen corresponding path program 1 times [2021-11-07 01:03:16,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:16,795 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340691656] [2021-11-07 01:03:16,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:16,803 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:16,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:16,805 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:16,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:03:28,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:28,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 2138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:03:28,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:29,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:29,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:30,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:30,470 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:30,470 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340691656] [2021-11-07 01:03:30,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340691656] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:30,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:30,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:03:30,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841785366] [2021-11-07 01:03:30,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:03:30,472 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:30,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:03:30,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:03:30,473 INFO L87 Difference]: Start difference. First operand 8524 states and 12859 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:34,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:34,825 INFO L93 Difference]: Finished difference Result 25466 states and 38472 transitions. [2021-11-07 01:03:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:03:34,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-07 01:03:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:34,975 INFO L225 Difference]: With dead ends: 25466 [2021-11-07 01:03:34,976 INFO L226 Difference]: Without dead ends: 16947 [2021-11-07 01:03:34,997 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:03:35,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16947 states. [2021-11-07 01:03:35,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16947 to 16827. [2021-11-07 01:03:35,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16827 states, 16742 states have (on average 1.5142754748536615) internal successors, (25352), 16772 states have internal predecessors, (25352), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-07 01:03:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16827 states to 16827 states and 25436 transitions. [2021-11-07 01:03:35,717 INFO L78 Accepts]: Start accepts. Automaton has 16827 states and 25436 transitions. Word has length 19 [2021-11-07 01:03:35,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:35,719 INFO L470 AbstractCegarLoop]: Abstraction has 16827 states and 25436 transitions. [2021-11-07 01:03:35,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 16827 states and 25436 transitions. [2021-11-07 01:03:35,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:03:35,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:35,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:03:35,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:35,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:35,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:03:35,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:35,941 INFO L85 PathProgramCache]: Analyzing trace with hash 1016835877, now seen corresponding path program 1 times [2021-11-07 01:03:35,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:35,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954393523] [2021-11-07 01:03:35,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:35,959 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:35,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:35,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:36,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:03:47,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:48,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 2166 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:03:48,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:48,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:48,637 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:49,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:03:49,174 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:49,174 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954393523] [2021-11-07 01:03:49,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954393523] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:49,174 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:49,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:03:49,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398809517] [2021-11-07 01:03:49,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:03:49,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:49,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:03:49,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:03:49,177 INFO L87 Difference]: Start difference. First operand 16827 states and 25436 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:52,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:52,459 INFO L93 Difference]: Finished difference Result 34025 states and 51368 transitions. [2021-11-07 01:03:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:03:52,460 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-07 01:03:52,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:52,512 INFO L225 Difference]: With dead ends: 34025 [2021-11-07 01:03:52,513 INFO L226 Difference]: Without dead ends: 17205 [2021-11-07 01:03:52,546 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:03:52,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17205 states. [2021-11-07 01:03:52,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17205 to 17140. [2021-11-07 01:03:53,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17140 states, 17055 states have (on average 1.5107006742890647) internal successors, (25765), 17085 states have internal predecessors, (25765), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-07 01:03:53,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17140 states to 17140 states and 25849 transitions. [2021-11-07 01:03:53,086 INFO L78 Accepts]: Start accepts. Automaton has 17140 states and 25849 transitions. Word has length 24 [2021-11-07 01:03:53,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:53,087 INFO L470 AbstractCegarLoop]: Abstraction has 17140 states and 25849 transitions. [2021-11-07 01:03:53,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:03:53,087 INFO L276 IsEmpty]: Start isEmpty. Operand 17140 states and 25849 transitions. [2021-11-07 01:03:53,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-07 01:03:53,090 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:53,090 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:03:53,172 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:53,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:53,320 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:03:53,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:53,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1285357015, now seen corresponding path program 1 times [2021-11-07 01:03:53,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:53,325 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1780469283] [2021-11-07 01:03:53,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:53,326 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:53,326 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:53,327 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:53,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:04:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:06,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 2217 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:04:06,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:06,940 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:04:06,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:07,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:04:07,847 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:07,847 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1780469283] [2021-11-07 01:04:07,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1780469283] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:07,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:07,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:04:07,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717149799] [2021-11-07 01:04:07,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:04:07,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:07,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:04:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:04:07,850 INFO L87 Difference]: Start difference. First operand 17140 states and 25849 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:04:15,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:15,663 INFO L93 Difference]: Finished difference Result 35389 states and 53393 transitions. [2021-11-07 01:04:15,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:04:15,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-11-07 01:04:15,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:15,721 INFO L225 Difference]: With dead ends: 35389 [2021-11-07 01:04:15,721 INFO L226 Difference]: Without dead ends: 18256 [2021-11-07 01:04:15,755 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:04:15,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18256 states. [2021-11-07 01:04:16,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18256 to 18248. [2021-11-07 01:04:16,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18248 states, 18163 states have (on average 1.5033309475306942) internal successors, (27305), 18193 states have internal predecessors, (27305), 42 states have call successors, (42), 12 states have call predecessors, (42), 12 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2021-11-07 01:04:16,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18248 states to 18248 states and 27389 transitions. [2021-11-07 01:04:16,407 INFO L78 Accepts]: Start accepts. Automaton has 18248 states and 27389 transitions. Word has length 39 [2021-11-07 01:04:16,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:16,408 INFO L470 AbstractCegarLoop]: Abstraction has 18248 states and 27389 transitions. [2021-11-07 01:04:16,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:04:16,408 INFO L276 IsEmpty]: Start isEmpty. Operand 18248 states and 27389 transitions. [2021-11-07 01:04:16,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-07 01:04:16,413 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:16,413 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:04:16,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:04:16,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:16,640 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 28 more)] === [2021-11-07 01:04:16,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1711536067, now seen corresponding path program 1 times [2021-11-07 01:04:16,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:16,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594663342] [2021-11-07 01:04:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:16,649 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:16,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:16,650 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:16,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d9f7a71-7247-43d1-a798-f11a26cc0323/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:08:10,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:08:11,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 2219 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-07 01:08:11,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:08:11,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-07 01:08:13,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-07 01:08:13,700 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:13,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:08:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:08:27,927 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:08:27,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594663342] [2021-11-07 01:08:27,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594663342] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:08:27,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:08:27,928 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-07 01:08:27,928 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128722745] [2021-11-07 01:08:27,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:08:27,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:08:27,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:08:27,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=145, Unknown=5, NotChecked=0, Total=182 [2021-11-07 01:08:27,930 INFO L87 Difference]: Start difference. First operand 18248 states and 27389 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)