./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:54:20,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:54:20,766 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:54:20,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:54:20,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:54:20,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:54:20,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:54:20,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:54:20,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:54:20,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:54:20,842 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:54:20,843 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:54:20,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:54:20,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:54:20,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:54:20,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:54:20,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:54:20,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:54:20,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:54:20,854 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:54:20,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:54:20,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:54:20,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:54:20,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:54:20,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:54:20,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:54:20,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:54:20,878 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:54:20,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:54:20,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:54:20,883 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:54:20,884 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:54:20,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:54:20,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:54:20,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:54:20,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:54:20,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:54:20,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:54:20,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:54:20,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:54:20,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:54:20,893 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 00:54:20,940 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:54:20,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:54:20,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:54:20,943 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:54:20,943 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:54:20,943 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:54:20,943 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 00:54:20,943 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:54:20,950 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:54:20,950 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 00:54:20,951 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 00:54:20,952 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:54:20,952 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 00:54:20,952 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 00:54:20,952 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 00:54:20,953 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:54:20,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 00:54:20,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:54:20,954 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:54:20,954 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:54:20,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:54:20,954 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:54:20,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:54:20,955 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:54:20,955 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:54:20,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:54:20,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:54:20,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:20,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:54:20,957 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:54:20,958 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:54:20,958 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 00:54:20,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 00:54:20,958 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:54:20,959 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:54:20,959 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:54:20,959 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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 [2021-11-07 00:54:21,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:54:21,257 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:54:21,260 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:54:21,262 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:54:21,263 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:54:21,264 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2021-11-07 00:54:21,335 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/af6781a9a/5146b829c63447c596f87970ad8b7e97/FLAG29ae7facc [2021-11-07 00:54:22,084 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:22,085 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2021-11-07 00:54:22,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/af6781a9a/5146b829c63447c596f87970ad8b7e97/FLAG29ae7facc [2021-11-07 00:54:22,190 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/af6781a9a/5146b829c63447c596f87970ad8b7e97 [2021-11-07 00:54:22,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:22,196 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:22,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:22,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:22,203 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:22,204 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:22" (1/1) ... [2021-11-07 00:54:22,208 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30ef2817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:22, skipping insertion in model container [2021-11-07 00:54:22,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:22" (1/1) ... [2021-11-07 00:54:22,217 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:22,330 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:23,036 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:23,046 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:23,101 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:23,120 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:23,124 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:23,133 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:23,135 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-07 00:54:23,222 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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2021-11-07 00:54:23,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:23,401 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 00:54:23,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@33eeb040 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:23, skipping insertion in model container [2021-11-07 00:54:23,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:23,403 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 00:54:23,405 INFO L168 Benchmark]: Toolchain (without parser) took 1207.86 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 46.7 MB in the beginning and 64.9 MB in the end (delta: -18.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:23,406 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 00:54:23,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1203.24 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 46.4 MB in the beginning and 64.9 MB in the end (delta: -18.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-11-07 00:54:23,409 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 92.3 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1203.24 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 46.4 MB in the beginning and 64.9 MB in the end (delta: -18.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2100]: 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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 00:54:25,739 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 00:54:25,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 00:54:25,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 00:54:25,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 00:54:25,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 00:54:25,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 00:54:25,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 00:54:25,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 00:54:25,802 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 00:54:25,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 00:54:25,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 00:54:25,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 00:54:25,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 00:54:25,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 00:54:25,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 00:54:25,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 00:54:25,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 00:54:25,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 00:54:25,817 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 00:54:25,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 00:54:25,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 00:54:25,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 00:54:25,824 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 00:54:25,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 00:54:25,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 00:54:25,829 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 00:54:25,830 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 00:54:25,831 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 00:54:25,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 00:54:25,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 00:54:25,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 00:54:25,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 00:54:25,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 00:54:25,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 00:54:25,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 00:54:25,839 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 00:54:25,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 00:54:25,840 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 00:54:25,841 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 00:54:25,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 00:54:25,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 00:54:25,870 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 00:54:25,871 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 00:54:25,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 00:54:25,872 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 00:54:25,872 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 00:54:25,872 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 00:54:25,873 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 00:54:25,873 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 00:54:25,873 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 00:54:25,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 00:54:25,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 00:54:25,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 00:54:25,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 00:54:25,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 00:54:25,876 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 00:54:25,876 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 00:54:25,876 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 00:54:25,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 00:54:25,877 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 00:54:25,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 00:54:25,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 00:54:25,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 00:54:25,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 00:54:25,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:25,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 00:54:25,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 00:54:25,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 00:54:25,880 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 00:54:25,880 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 00:54:25,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 00:54:25,881 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 00:54:25,881 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 00:54:25,881 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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7d6844ab51374c8e656234daa6d7df2c3927c38bae9fcbeafc3fadf6f3b893b1 [2021-11-07 00:54:26,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 00:54:26,285 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 00:54:26,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 00:54:26,290 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 00:54:26,290 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 00:54:26,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2021-11-07 00:54:26,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/5ea53858d/76acdc04d3564b968ed9a57b567daaa6/FLAG4b3d70cf3 [2021-11-07 00:54:27,208 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 00:54:27,208 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2021-11-07 00:54:27,240 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/5ea53858d/76acdc04d3564b968ed9a57b567daaa6/FLAG4b3d70cf3 [2021-11-07 00:54:27,271 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/data/5ea53858d/76acdc04d3564b968ed9a57b567daaa6 [2021-11-07 00:54:27,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 00:54:27,285 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 00:54:27,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:27,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 00:54:27,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 00:54:27,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:27" (1/1) ... [2021-11-07 00:54:27,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6358b8ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:27, skipping insertion in model container [2021-11-07 00:54:27,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:54:27" (1/1) ... [2021-11-07 00:54:27,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 00:54:27,441 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:28,433 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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2021-11-07 00:54:28,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:28,571 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 00:54:28,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 00:54:28,764 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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2021-11-07 00:54:28,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:28,858 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 00:54:29,085 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_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i[132927,132940] [2021-11-07 00:54:29,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 00:54:29,368 INFO L208 MainTranslator]: Completed translation [2021-11-07 00:54:29,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29 WrapperNode [2021-11-07 00:54:29,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 00:54:29,370 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:29,371 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 00:54:29,371 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 00:54:29,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:29,497 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:29,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 00:54:29,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 00:54:29,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 00:54:29,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 00:54:29,985 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:29,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:30,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:30,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:30,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:30,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:30,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:30,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 00:54:30,576 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 00:54:30,576 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 00:54:30,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 00:54:30,577 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (1/1) ... [2021-11-07 00:54:30,587 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 00:54:30,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 00:54:30,618 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 00:54:30,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 00:54:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 00:54:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 00:54:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 00:54:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-07 00:54:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 00:54:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 00:54:30,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 00:54:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 00:54:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 00:54:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 00:54:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 00:54:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 00:54:30,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 00:54:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 00:54:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 00:54:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 00:54:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-07 00:54:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure strcspn [2021-11-07 00:54:30,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 00:54:30,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 00:57:07,394 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 00:57:07,395 INFO L299 CfgBuilder]: Removed 1211 assume(true) statements. [2021-11-07 00:57:07,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:07 BoogieIcfgContainer [2021-11-07 00:57:07,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 00:57:07,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 00:57:07,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 00:57:07,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 00:57:07,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:54:27" (1/3) ... [2021-11-07 00:57:07,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108d5c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:07, skipping insertion in model container [2021-11-07 00:57:07,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:54:29" (2/3) ... [2021-11-07 00:57:07,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@108d5c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:57:07, skipping insertion in model container [2021-11-07 00:57:07,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:57:07" (3/3) ... [2021-11-07 00:57:07,410 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--abituguru3.ko-main.cil.out.i [2021-11-07 00:57:07,416 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 00:57:07,417 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-07 00:57:07,494 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 00:57:07,501 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 00:57:07,501 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-07 00:57:07,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 1381 states, 1369 states have (on average 1.3783783783783783) internal successors, (1887), 1380 states have internal predecessors, (1887), 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 00:57:07,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-07 00:57:07,563 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:57:07,564 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:57:07,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:57:07,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:57:07,572 INFO L85 PathProgramCache]: Analyzing trace with hash 12375506, now seen corresponding path program 1 times [2021-11-07 00:57:07,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:57:07,661 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1892050177] [2021-11-07 00:57:07,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:57:07,662 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:57:07,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:57:07,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:57:07,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 00:58:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:58:06,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 14122 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:58:06,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:58:07,261 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 00:58:07,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:58:07,457 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 00:58:07,459 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:58:07,459 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1892050177] [2021-11-07 00:58:07,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1892050177] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:58:07,461 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:58:07,461 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 00:58:07,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627043381] [2021-11-07 00:58:07,469 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 00:58:07,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:58:07,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 00:58:07,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:07,494 INFO L87 Difference]: Start difference. First operand has 1381 states, 1369 states have (on average 1.3783783783783783) internal successors, (1887), 1380 states have internal predecessors, (1887), 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) Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 00:58:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:58:17,894 INFO L93 Difference]: Finished difference Result 5333 states and 7297 transitions. [2021-11-07 00:58:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 00:58:17,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 14 [2021-11-07 00:58:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:58:17,956 INFO L225 Difference]: With dead ends: 5333 [2021-11-07 00:58:17,956 INFO L226 Difference]: Without dead ends: 3951 [2021-11-07 00:58:17,972 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 00:58:18,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3951 states. [2021-11-07 00:58:18,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3951 to 3919. [2021-11-07 00:58:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3919 states, 3908 states have (on average 1.3628454452405323) internal successors, (5326), 3918 states have internal predecessors, (5326), 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 00:58:18,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3919 states to 3919 states and 5326 transitions. [2021-11-07 00:58:18,269 INFO L78 Accepts]: Start accepts. Automaton has 3919 states and 5326 transitions. Word has length 14 [2021-11-07 00:58:18,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:58:18,270 INFO L470 AbstractCegarLoop]: Abstraction has 3919 states and 5326 transitions. [2021-11-07 00:58:18,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 00:58:18,271 INFO L276 IsEmpty]: Start isEmpty. Operand 3919 states and 5326 transitions. [2021-11-07 00:58:18,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 00:58:18,274 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:58:18,275 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 00:58:18,488 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forcibly destroying the process [2021-11-07 00:58:18,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 00:58:18,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:58:18,501 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:58:18,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:58:18,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1358126481, now seen corresponding path program 1 times [2021-11-07 00:58:18,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:58:18,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [694919898] [2021-11-07 00:58:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:58:18,531 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:58:18,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:58:18,532 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:58:18,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 00:59:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 00:59:18,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 14136 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 00:59:18,121 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 00:59:18,311 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 00:59:18,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 00:59:18,485 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 00:59:18,485 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 00:59:18,485 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [694919898] [2021-11-07 00:59:18,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [694919898] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 00:59:18,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 00:59:18,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 00:59:18,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934632517] [2021-11-07 00:59:18,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 00:59:18,488 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 00:59:18,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 00:59:18,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 00:59:18,490 INFO L87 Difference]: Start difference. First operand 3919 states and 5326 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 00:59:25,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 00:59:25,370 INFO L93 Difference]: Finished difference Result 10027 states and 13576 transitions. [2021-11-07 00:59:25,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 00:59:25,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 15 [2021-11-07 00:59:25,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 00:59:25,415 INFO L225 Difference]: With dead ends: 10027 [2021-11-07 00:59:25,416 INFO L226 Difference]: Without dead ends: 6111 [2021-11-07 00:59:25,424 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 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 00:59:25,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6111 states. [2021-11-07 00:59:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6111 to 6095. [2021-11-07 00:59:25,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 6084 states have (on average 1.35387902695595) internal successors, (8237), 6094 states have internal predecessors, (8237), 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 00:59:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 8237 transitions. [2021-11-07 00:59:25,691 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 8237 transitions. Word has length 15 [2021-11-07 00:59:25,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 00:59:25,691 INFO L470 AbstractCegarLoop]: Abstraction has 6095 states and 8237 transitions. [2021-11-07 00:59:25,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 00:59:25,692 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 8237 transitions. [2021-11-07 00:59:25,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 00:59:25,698 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 00:59:25,698 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] [2021-11-07 00:59:25,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 00:59:25,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 00:59:25,913 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 00:59:25,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 00:59:25,914 INFO L85 PathProgramCache]: Analyzing trace with hash 1461430461, now seen corresponding path program 1 times [2021-11-07 00:59:25,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 00:59:25,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1651722191] [2021-11-07 00:59:25,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 00:59:25,957 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 00:59:25,957 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 00:59:25,958 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 00:59:26,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:00:16,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:00:17,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 14153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:00:17,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:00:17,982 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 01:00:17,982 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:00:18,272 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 01:00:18,273 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:00:18,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1651722191] [2021-11-07 01:00:18,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1651722191] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:00:18,273 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:00:18,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 01:00:18,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286393411] [2021-11-07 01:00:18,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:00:18,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:00:18,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:00:18,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:00:18,276 INFO L87 Difference]: Start difference. First operand 6095 states and 8237 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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 01:00:18,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:00:18,569 INFO L93 Difference]: Finished difference Result 11063 states and 14958 transitions. [2021-11-07 01:00:18,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:00:18,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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 23 [2021-11-07 01:00:18,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:00:18,607 INFO L225 Difference]: With dead ends: 11063 [2021-11-07 01:00:18,607 INFO L226 Difference]: Without dead ends: 6095 [2021-11-07 01:00:18,617 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 42 SyntacticMatches, 1 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 01:00:18,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2021-11-07 01:00:18,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 6095. [2021-11-07 01:00:18,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6095 states, 6084 states have (on average 1.3532215647600263) internal successors, (8233), 6094 states have internal predecessors, (8233), 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 01:00:19,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6095 states to 6095 states and 8233 transitions. [2021-11-07 01:00:19,001 INFO L78 Accepts]: Start accepts. Automaton has 6095 states and 8233 transitions. Word has length 23 [2021-11-07 01:00:19,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:00:19,001 INFO L470 AbstractCegarLoop]: Abstraction has 6095 states and 8233 transitions. [2021-11-07 01:00:19,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 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 01:00:19,007 INFO L276 IsEmpty]: Start isEmpty. Operand 6095 states and 8233 transitions. [2021-11-07 01:00:19,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:00:19,010 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:00:19,010 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] [2021-11-07 01:00:19,220 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:00:19,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:00:19,237 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:00:19,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:00:19,237 INFO L85 PathProgramCache]: Analyzing trace with hash 874624447, now seen corresponding path program 1 times [2021-11-07 01:00:19,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:00:19,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2057862530] [2021-11-07 01:00:19,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:00:19,275 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:00:19,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:00:19,277 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:00:19,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:01:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:01:12,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 14153 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:01:12,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:01:12,675 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 01:01:12,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:01:13,691 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 01:01:13,691 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:01:13,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2057862530] [2021-11-07 01:01:13,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2057862530] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:01:13,692 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:01:13,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-07 01:01:13,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746648571] [2021-11-07 01:01:13,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 01:01:13,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:01:13,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 01:01:13,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-07 01:01:13,694 INFO L87 Difference]: Start difference. First operand 6095 states and 8233 transitions. Second operand has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 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 01:02:05,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:02:05,954 INFO L93 Difference]: Finished difference Result 16038 states and 21661 transitions. [2021-11-07 01:02:05,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-07 01:02:05,977 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 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 23 [2021-11-07 01:02:05,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:02:06,083 INFO L225 Difference]: With dead ends: 16038 [2021-11-07 01:02:06,083 INFO L226 Difference]: Without dead ends: 11070 [2021-11-07 01:02:06,095 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=211, Invalid=545, Unknown=0, NotChecked=0, Total=756 [2021-11-07 01:02:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11070 states. [2021-11-07 01:02:06,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11070 to 6025. [2021-11-07 01:02:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6025 states, 6014 states have (on average 1.3535084802128368) internal successors, (8140), 6024 states have internal predecessors, (8140), 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 01:02:06,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6025 states to 6025 states and 8140 transitions. [2021-11-07 01:02:06,632 INFO L78 Accepts]: Start accepts. Automaton has 6025 states and 8140 transitions. Word has length 23 [2021-11-07 01:02:06,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:02:06,633 INFO L470 AbstractCegarLoop]: Abstraction has 6025 states and 8140 transitions. [2021-11-07 01:02:06,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.357142857142857) internal successors, (33), 14 states have internal predecessors, (33), 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 01:02:06,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6025 states and 8140 transitions. [2021-11-07 01:02:06,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:02:06,635 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:02:06,635 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] [2021-11-07 01:02:06,849 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forcibly destroying the process [2021-11-07 01:02:06,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:02:06,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:02:06,886 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:02:06,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:02:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash 874684029, now seen corresponding path program 1 times [2021-11-07 01:02:06,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:02:06,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1516521140] [2021-11-07 01:02:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:02:06,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:02:06,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:02:06,929 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:02:06,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:03:01,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:03:02,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 14151 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:03:02,230 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:03:02,556 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 01:03:02,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:03:02,863 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 01:03:02,863 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:03:02,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1516521140] [2021-11-07 01:03:02,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1516521140] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:03:02,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:03:02,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:03:02,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471761733] [2021-11-07 01:03:02,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:03:02,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:03:02,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:03:02,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:03:02,865 INFO L87 Difference]: Start difference. First operand 6025 states and 8140 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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 01:03:11,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:03:11,619 INFO L93 Difference]: Finished difference Result 6025 states and 8140 transitions. [2021-11-07 01:03:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:03:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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 23 [2021-11-07 01:03:11,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:03:11,647 INFO L225 Difference]: With dead ends: 6025 [2021-11-07 01:03:11,647 INFO L226 Difference]: Without dead ends: 6023 [2021-11-07 01:03:11,649 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 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 01:03:11,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6023 states. [2021-11-07 01:03:12,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6023 to 6023. [2021-11-07 01:03:12,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6023 states, 6013 states have (on average 1.3534009645767504) internal successors, (8138), 6022 states have internal predecessors, (8138), 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 01:03:12,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6023 states to 6023 states and 8138 transitions. [2021-11-07 01:03:12,121 INFO L78 Accepts]: Start accepts. Automaton has 6023 states and 8138 transitions. Word has length 23 [2021-11-07 01:03:12,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:03:12,121 INFO L470 AbstractCegarLoop]: Abstraction has 6023 states and 8138 transitions. [2021-11-07 01:03:12,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 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 01:03:12,123 INFO L276 IsEmpty]: Start isEmpty. Operand 6023 states and 8138 transitions. [2021-11-07 01:03:12,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-07 01:03:12,123 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:03:12,124 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 01:03:12,338 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forcibly destroying the process [2021-11-07 01:03:12,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:03:12,359 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:03:12,359 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:03:12,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:03:12,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1345403867, now seen corresponding path program 1 times [2021-11-07 01:03:12,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:03:12,403 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1307594335] [2021-11-07 01:03:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:03:12,403 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:03:12,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:03:12,405 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:03:12,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:04:05,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:04:05,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 14152 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:04:05,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:04:06,183 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 01:04:06,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:04:06,523 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 01:04:06,523 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:04:06,524 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1307594335] [2021-11-07 01:04:06,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1307594335] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:04:06,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:04:06,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:04:06,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99706752] [2021-11-07 01:04:06,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:04:06,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:04:06,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:04:06,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:04:06,526 INFO L87 Difference]: Start difference. First operand 6023 states and 8138 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 01:04:15,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:04:15,576 INFO L93 Difference]: Finished difference Result 6023 states and 8138 transitions. [2021-11-07 01:04:15,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:04:15,576 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 01:04:15,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:04:15,592 INFO L225 Difference]: With dead ends: 6023 [2021-11-07 01:04:15,592 INFO L226 Difference]: Without dead ends: 6021 [2021-11-07 01:04:15,595 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 01:04:15,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6021 states. [2021-11-07 01:04:16,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6021 to 6021. [2021-11-07 01:04:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6021 states, 6012 states have (on average 1.3532934131736527) internal successors, (8136), 6020 states have internal predecessors, (8136), 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 01:04:16,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6021 states to 6021 states and 8136 transitions. [2021-11-07 01:04:16,096 INFO L78 Accepts]: Start accepts. Automaton has 6021 states and 8136 transitions. Word has length 24 [2021-11-07 01:04:16,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:04:16,097 INFO L470 AbstractCegarLoop]: Abstraction has 6021 states and 8136 transitions. [2021-11-07 01:04:16,097 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 01:04:16,097 INFO L276 IsEmpty]: Start isEmpty. Operand 6021 states and 8136 transitions. [2021-11-07 01:04:16,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-07 01:04:16,098 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:04:16,098 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, 1] [2021-11-07 01:04:16,296 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-07 01:04:16,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:04:16,321 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:04:16,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:04:16,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1242150329, now seen corresponding path program 1 times [2021-11-07 01:04:16,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:04:16,344 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [578997572] [2021-11-07 01:04:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:04:16,344 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:04:16,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:04:16,345 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:04:16,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:05:07,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:05:08,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 14153 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:05:08,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:05:08,736 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 01:05:08,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:05:09,085 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 01:05:09,085 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:05:09,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [578997572] [2021-11-07 01:05:09,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [578997572] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:05:09,086 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:05:09,086 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:05:09,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946380931] [2021-11-07 01:05:09,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:05:09,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:05:09,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:05:09,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:05:09,088 INFO L87 Difference]: Start difference. First operand 6021 states and 8136 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 01:05:18,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:05:18,999 INFO L93 Difference]: Finished difference Result 12209 states and 16534 transitions. [2021-11-07 01:05:18,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:05:18,999 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 25 [2021-11-07 01:05:19,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:05:19,020 INFO L225 Difference]: With dead ends: 12209 [2021-11-07 01:05:19,021 INFO L226 Difference]: Without dead ends: 7300 [2021-11-07 01:05:19,032 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 47 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 01:05:19,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7300 states. [2021-11-07 01:05:19,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7300 to 6138. [2021-11-07 01:05:19,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6138 states, 6129 states have (on average 1.356665035079132) internal successors, (8315), 6137 states have internal predecessors, (8315), 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 01:05:19,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6138 states to 6138 states and 8315 transitions. [2021-11-07 01:05:19,693 INFO L78 Accepts]: Start accepts. Automaton has 6138 states and 8315 transitions. Word has length 25 [2021-11-07 01:05:19,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:05:19,694 INFO L470 AbstractCegarLoop]: Abstraction has 6138 states and 8315 transitions. [2021-11-07 01:05:19,694 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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 01:05:19,694 INFO L276 IsEmpty]: Start isEmpty. Operand 6138 states and 8315 transitions. [2021-11-07 01:05:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-07 01:05:19,696 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:05:19,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:05:19,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:05:19,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:05:19,916 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:05:19,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:05:19,917 INFO L85 PathProgramCache]: Analyzing trace with hash -2053211790, now seen corresponding path program 1 times [2021-11-07 01:05:19,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:05:19,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1613400340] [2021-11-07 01:05:19,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:05:19,946 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:05:19,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:05:19,946 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:05:19,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:06:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:06:15,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 14305 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:06:15,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:06:16,403 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 01:06:16,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:06:16,892 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 01:06:16,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:06:16,892 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1613400340] [2021-11-07 01:06:16,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1613400340] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:06:16,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:06:16,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:06:16,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098572793] [2021-11-07 01:06:16,894 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:06:16,894 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:06:16,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:06:16,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:06:16,895 INFO L87 Difference]: Start difference. First operand 6138 states and 8315 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 01:06:26,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:06:26,209 INFO L93 Difference]: Finished difference Result 11906 states and 16237 transitions. [2021-11-07 01:06:26,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:06:26,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2021-11-07 01:06:26,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:06:26,223 INFO L225 Difference]: With dead ends: 11906 [2021-11-07 01:06:26,223 INFO L226 Difference]: Without dead ends: 5771 [2021-11-07 01:06:26,232 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 87 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 01:06:26,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5771 states. [2021-11-07 01:06:26,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5771 to 5614. [2021-11-07 01:06:26,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5614 states, 5605 states have (on average 1.3803746654772524) internal successors, (7737), 5613 states have internal predecessors, (7737), 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 01:06:26,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5614 states to 5614 states and 7737 transitions. [2021-11-07 01:06:26,718 INFO L78 Accepts]: Start accepts. Automaton has 5614 states and 7737 transitions. Word has length 45 [2021-11-07 01:06:26,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:06:26,719 INFO L470 AbstractCegarLoop]: Abstraction has 5614 states and 7737 transitions. [2021-11-07 01:06:26,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 01:06:26,719 INFO L276 IsEmpty]: Start isEmpty. Operand 5614 states and 7737 transitions. [2021-11-07 01:06:26,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-07 01:06:26,722 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:06:26,723 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:06:26,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 01:06:26,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:06:26,928 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:06:26,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:06:26,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1393190824, now seen corresponding path program 1 times [2021-11-07 01:06:26,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:06:26,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [568589833] [2021-11-07 01:06:26,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:06:26,955 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:06:26,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:06:26,956 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:06:26,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:07:22,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:07:22,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 14269 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 01:07:22,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:07:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:23,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:07:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:07:24,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:07:24,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [568589833] [2021-11-07 01:07:24,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [568589833] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:07:24,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:07:24,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 01:07:24,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497064685] [2021-11-07 01:07:24,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 01:07:24,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:07:24,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 01:07:24,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 01:07:24,419 INFO L87 Difference]: Start difference. First operand 5614 states and 7737 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 01:07:41,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:07:41,703 INFO L93 Difference]: Finished difference Result 27066 states and 37448 transitions. [2021-11-07 01:07:41,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 01:07:41,704 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 58 [2021-11-07 01:07:41,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:07:41,744 INFO L225 Difference]: With dead ends: 27066 [2021-11-07 01:07:41,745 INFO L226 Difference]: Without dead ends: 21467 [2021-11-07 01:07:41,759 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 01:07:41,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21467 states. [2021-11-07 01:07:42,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21467 to 5617. [2021-11-07 01:07:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5617 states, 5608 states have (on average 1.3799928673323822) internal successors, (7739), 5616 states have internal predecessors, (7739), 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 01:07:42,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5617 states to 5617 states and 7739 transitions. [2021-11-07 01:07:42,658 INFO L78 Accepts]: Start accepts. Automaton has 5617 states and 7739 transitions. Word has length 58 [2021-11-07 01:07:42,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:07:42,660 INFO L470 AbstractCegarLoop]: Abstraction has 5617 states and 7739 transitions. [2021-11-07 01:07:42,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 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 01:07:42,660 INFO L276 IsEmpty]: Start isEmpty. Operand 5617 states and 7739 transitions. [2021-11-07 01:07:42,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-07 01:07:42,663 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:07:42,663 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:07:42,878 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forcibly destroying the process [2021-11-07 01:07:42,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:07:42,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:07:42,930 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-07 01:07:42,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:07:42,931 INFO L85 PathProgramCache]: Analyzing trace with hash -737672526, now seen corresponding path program 1 times [2021-11-07 01:07:42,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:07:42,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [769900342] [2021-11-07 01:07:42,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:07:42,974 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:07:42,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:07:42,975 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:07:42,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99e0f2e4-f8be-45e4-815e-de7a5bb7b295/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process