./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH --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 32bit --witnessprinter.graph.data.programhash f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:41:56,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:41:56,725 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:41:56,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:41:56,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:41:56,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:41:56,759 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:41:56,761 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:41:56,763 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:41:56,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:41:56,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:41:56,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:41:56,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:41:56,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:41:56,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:41:56,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:41:56,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:41:56,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:41:56,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:41:56,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:41:56,780 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:41:56,782 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:41:56,783 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:41:56,784 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:41:56,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:41:56,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:41:56,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:41:56,790 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:41:56,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:41:56,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:41:56,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:41:56,793 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:41:56,797 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:41:56,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:41:56,801 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:41:56,801 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:41:56,803 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:41:56,803 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:41:56,803 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:41:56,804 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:41:56,805 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:41:56,806 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:41:56,850 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:41:56,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:41:56,852 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:41:56,852 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:41:56,853 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:41:56,853 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:41:56,853 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:41:56,854 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:41:56,854 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:41:56,854 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:41:56,855 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:41:56,856 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:41:56,856 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:41:56,856 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:41:56,856 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:41:56,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:41:56,858 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:41:56,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:41:56,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:41:56,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:41:56,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:41:56,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:41:56,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:41:56,860 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:41:56,860 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:41:56,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:41:56,861 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:41:56,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:41:56,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:41:56,863 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:41:56,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:41:56,863 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:41:56,864 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:41:56,864 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:41:56,864 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:41:56,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:41:56,865 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:41:56,865 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:41:56,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:41:56,866 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_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 [2021-11-03 04:41:57,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:41:57,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:41:57,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:41:57,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:41:57,163 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:41:57,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2021-11-03 04:41:57,238 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/7d85890c4/8d3b4037ccb44cfb99d8897cc404634f/FLAG409e1b67f [2021-11-03 04:41:57,817 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:41:57,822 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2021-11-03 04:41:57,859 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/7d85890c4/8d3b4037ccb44cfb99d8897cc404634f/FLAG409e1b67f [2021-11-03 04:41:58,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/7d85890c4/8d3b4037ccb44cfb99d8897cc404634f [2021-11-03 04:41:58,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:41:58,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:41:58,076 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:41:58,076 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:41:58,084 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:41:58,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:41:58" (1/1) ... [2021-11-03 04:41:58,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d0fe869 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:41:58, skipping insertion in model container [2021-11-03 04:41:58,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:41:58" (1/1) ... [2021-11-03 04:41:58,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:41:58,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:41:58,640 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_34283e80-d89a-402d-a220-2fa591900c82/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i[33021,33034] [2021-11-03 04:41:58,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:41:58,758 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) [2021-11-03 04:41:58,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@728e5e37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:41:58, skipping insertion in model container [2021-11-03 04:41:58,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:41:58,760 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:41:58,762 INFO L168 Benchmark]: Toolchain (without parser) took 686.01 ms. Allocated memory is still 96.5 MB. Free memory was 58.2 MB in the beginning and 63.4 MB in the end (delta: -5.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:41:58,763 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.5 MB in the beginning and 68.5 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:41:58,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.57 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 63.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:41:58,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 96.5 MB. Free memory was 68.5 MB in the beginning and 68.5 MB in the end (delta: 30.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 683.57 ms. Allocated memory is still 96.5 MB. Free memory was 58.0 MB in the beginning and 63.4 MB in the end (delta: -5.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 751]: 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_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH --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 32bit --witnessprinter.graph.data.programhash f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:42:00,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:42:00,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:42:00,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:42:00,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:42:00,957 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:42:00,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:42:00,967 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:42:00,970 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:42:00,978 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:42:00,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:42:00,981 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:42:00,981 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:42:00,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:42:00,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:42:00,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:42:00,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:42:00,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:42:00,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:42:00,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:42:00,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:42:01,001 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:42:01,002 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:42:01,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:42:01,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:42:01,007 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:42:01,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:42:01,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:42:01,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:42:01,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:42:01,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:42:01,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:42:01,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:42:01,013 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:42:01,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:42:01,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:42:01,024 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:42:01,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:42:01,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:42:01,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:42:01,026 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:42:01,027 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:42:01,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:42:01,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:42:01,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:42:01,056 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:42:01,057 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:42:01,057 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:42:01,058 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:42:01,058 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:42:01,058 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:42:01,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:42:01,060 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:42:01,061 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:42:01,061 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:42:01,061 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:42:01,061 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:42:01,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:42:01,062 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:42:01,062 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:42:01,062 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:42:01,062 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:42:01,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:42:01,063 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:42:01,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:42:01,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:42:01,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:42:01,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:42:01,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:42:01,064 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:42:01,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:42:01,065 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:42:01,065 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:42:01,065 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:42:01,066 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:42:01,066 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:42:01,066 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:42:01,067 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_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f0b44034f537cfca2c2eab71fbff4de4b57572a56ff00cd4bbb31f940e955385 [2021-11-03 04:42:01,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:42:01,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:42:01,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:42:01,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:42:01,457 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:42:01,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2021-11-03 04:42:01,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/ec798ecb1/841f2b0134514ae0a97b0a0f5a5eb3ed/FLAG32e7d32d7 [2021-11-03 04:42:02,210 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:42:02,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i [2021-11-03 04:42:02,227 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/ec798ecb1/841f2b0134514ae0a97b0a0f5a5eb3ed/FLAG32e7d32d7 [2021-11-03 04:42:02,558 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/data/ec798ecb1/841f2b0134514ae0a97b0a0f5a5eb3ed [2021-11-03 04:42:02,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:42:02,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:42:02,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:42:02,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:42:02,581 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:42:02,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:42:02" (1/1) ... [2021-11-03 04:42:02,582 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7c230d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:02, skipping insertion in model container [2021-11-03 04:42:02,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:42:02" (1/1) ... [2021-11-03 04:42:02,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:42:02,636 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:42:03,019 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_34283e80-d89a-402d-a220-2fa591900c82/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i[33021,33034] [2021-11-03 04:42:03,107 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:42:03,118 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:42:03,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:42:03,158 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_34283e80-d89a-402d-a220-2fa591900c82/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i[33021,33034] [2021-11-03 04:42:03,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:42:03,240 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:42:03,289 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_34283e80-d89a-402d-a220-2fa591900c82/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-2.i[33021,33034] [2021-11-03 04:42:03,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:42:03,411 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:42:03,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03 WrapperNode [2021-11-03 04:42:03,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:42:03,413 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:42:03,413 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:42:03,413 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:42:03,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,452 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:42:03,532 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:42:03,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:42:03,536 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:42:03,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,649 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,666 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:42:03,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:42:03,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:42:03,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:42:03,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (1/1) ... [2021-11-03 04:42:03,698 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:42:03,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:42:03,721 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:42:03,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:42:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:42:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:42:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:42:03,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:42:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:42:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:42:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:42:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:42:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:42:03,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:42:03,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:42:09,207 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:42:09,207 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-03 04:42:09,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:42:09 BoogieIcfgContainer [2021-11-03 04:42:09,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:42:09,211 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:42:09,211 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:42:09,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:42:09,217 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:42:02" (1/3) ... [2021-11-03 04:42:09,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73479417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:42:09, skipping insertion in model container [2021-11-03 04:42:09,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:42:03" (2/3) ... [2021-11-03 04:42:09,218 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73479417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:42:09, skipping insertion in model container [2021-11-03 04:42:09,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:42:09" (3/3) ... [2021-11-03 04:42:09,223 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-2.i [2021-11-03 04:42:09,228 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:42:09,228 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-03 04:42:09,289 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:42:09,296 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 [2021-11-03 04:42:09,296 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-03 04:42:09,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 167 states, 156 states have (on average 1.7307692307692308) internal successors, (270), 166 states have internal predecessors, (270), 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) [2021-11-03 04:42:09,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:42:09,318 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:09,319 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:09,319 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:09,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:09,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2021-11-03 04:42:09,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:09,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529882708] [2021-11-03 04:42:09,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:09,337 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:09,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:09,340 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:09,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:42:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:09,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:42:09,481 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:09,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:09,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:09,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:09,558 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:09,559 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529882708] [2021-11-03 04:42:09,559 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529882708] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:09,560 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:09,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:42:09,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019993855] [2021-11-03 04:42:09,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:42:09,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:09,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:42:09,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:42:09,591 INFO L87 Difference]: Start difference. First operand has 167 states, 156 states have (on average 1.7307692307692308) internal successors, (270), 166 states have internal predecessors, (270), 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 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 04:42:09,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:09,643 INFO L93 Difference]: Finished difference Result 332 states and 538 transitions. [2021-11-03 04:42:09,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:42:09,644 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-03 04:42:09,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:09,658 INFO L225 Difference]: With dead ends: 332 [2021-11-03 04:42:09,658 INFO L226 Difference]: Without dead ends: 134 [2021-11-03 04:42:09,662 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:42:09,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-03 04:42:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-03 04:42:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 124 states have (on average 1.3870967741935485) internal successors, (172), 133 states have internal predecessors, (172), 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) [2021-11-03 04:42:09,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2021-11-03 04:42:09,721 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2021-11-03 04:42:09,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:09,722 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2021-11-03 04:42:09,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-03 04:42:09,722 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2021-11-03 04:42:09,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:42:09,723 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:09,723 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:09,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:09,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:42:09,938 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:09,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:09,939 INFO L85 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2021-11-03 04:42:09,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:09,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1018360172] [2021-11-03 04:42:09,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:09,940 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:09,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:09,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:09,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:42:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:10,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:42:10,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:10,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:10,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:10,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:42:10,188 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:10,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1018360172] [2021-11-03 04:42:10,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1018360172] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:10,190 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:10,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:42:10,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636875965] [2021-11-03 04:42:10,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:42:10,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:10,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:42:10,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:42:10,195 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-03 04:42:10,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:10,334 INFO L93 Difference]: Finished difference Result 267 states and 344 transitions. [2021-11-03 04:42:10,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:42:10,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 8 [2021-11-03 04:42:10,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:10,336 INFO L225 Difference]: With dead ends: 267 [2021-11-03 04:42:10,336 INFO L226 Difference]: Without dead ends: 222 [2021-11-03 04:42:10,337 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:42:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-03 04:42:10,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-11-03 04:42:10,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 221 states have internal predecessors, (287), 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) [2021-11-03 04:42:10,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 287 transitions. [2021-11-03 04:42:10,361 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 287 transitions. Word has length 8 [2021-11-03 04:42:10,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:10,361 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 287 transitions. [2021-11-03 04:42:10,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-11-03 04:42:10,362 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 287 transitions. [2021-11-03 04:42:10,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 04:42:10,367 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:10,367 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:10,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:10,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:42:10,580 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:10,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:10,580 INFO L85 PathProgramCache]: Analyzing trace with hash 2050695974, now seen corresponding path program 1 times [2021-11-03 04:42:10,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:10,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [543167868] [2021-11-03 04:42:10,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:10,582 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:10,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:10,583 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:10,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:42:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:11,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:42:11,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:11,345 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-03 04:42:11,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:11,699 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-03 04:42:11,699 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:11,699 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [543167868] [2021-11-03 04:42:11,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [543167868] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:11,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:11,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:42:11,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148316878] [2021-11-03 04:42:11,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:42:11,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:11,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:42:11,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:42:11,703 INFO L87 Difference]: Start difference. First operand 222 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-11-03 04:42:11,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:11,827 INFO L93 Difference]: Finished difference Result 444 states and 580 transitions. [2021-11-03 04:42:11,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:42:11,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 110 [2021-11-03 04:42:11,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:11,836 INFO L225 Difference]: With dead ends: 444 [2021-11-03 04:42:11,838 INFO L226 Difference]: Without dead ends: 230 [2021-11-03 04:42:11,839 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:42:11,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-03 04:42:11,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2021-11-03 04:42:11,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.2706422018348624) internal successors, (277), 227 states have internal predecessors, (277), 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) [2021-11-03 04:42:11,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2021-11-03 04:42:11,868 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 110 [2021-11-03 04:42:11,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:11,869 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2021-11-03 04:42:11,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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) [2021-11-03 04:42:11,869 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2021-11-03 04:42:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 04:42:11,873 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:11,873 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:11,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:12,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:42:12,078 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:12,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:12,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1601617830, now seen corresponding path program 1 times [2021-11-03 04:42:12,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:12,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1340055146] [2021-11-03 04:42:12,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:12,081 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:12,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:12,084 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:12,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:42:12,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:12,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:42:12,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-03 04:42:12,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:13,632 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-03 04:42:13,632 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:13,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1340055146] [2021-11-03 04:42:13,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1340055146] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:13,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:13,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 9 [2021-11-03 04:42:13,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123339920] [2021-11-03 04:42:13,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:42:13,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:13,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:42:13,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:42:13,635 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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) [2021-11-03 04:42:13,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:13,738 INFO L93 Difference]: Finished difference Result 413 states and 507 transitions. [2021-11-03 04:42:13,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:42:13,739 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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 110 [2021-11-03 04:42:13,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:13,741 INFO L225 Difference]: With dead ends: 413 [2021-11-03 04:42:13,741 INFO L226 Difference]: Without dead ends: 216 [2021-11-03 04:42:13,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:42:13,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-03 04:42:13,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-03 04:42:13,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 206 states have (on average 1.2475728155339805) internal successors, (257), 215 states have internal predecessors, (257), 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) [2021-11-03 04:42:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2021-11-03 04:42:13,756 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 110 [2021-11-03 04:42:13,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:13,756 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2021-11-03 04:42:13,757 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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) [2021-11-03 04:42:13,757 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2021-11-03 04:42:13,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 04:42:13,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:13,759 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:13,782 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:13,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:42:13,977 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:13,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 1 times [2021-11-03 04:42:13,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:13,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1400796552] [2021-11-03 04:42:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:13,980 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:13,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:13,981 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:14,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:42:14,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:14,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:42:14,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:14,996 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:42:14,996 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:15,500 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:42:15,501 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:15,501 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1400796552] [2021-11-03 04:42:15,501 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1400796552] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:15,501 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:15,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:42:15,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768717572] [2021-11-03 04:42:15,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:42:15,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:15,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:42:15,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:15,503 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-03 04:42:16,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:16,224 INFO L93 Difference]: Finished difference Result 383 states and 462 transitions. [2021-11-03 04:42:16,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:42:16,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 110 [2021-11-03 04:42:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:16,227 INFO L225 Difference]: With dead ends: 383 [2021-11-03 04:42:16,227 INFO L226 Difference]: Without dead ends: 214 [2021-11-03 04:42:16,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:42:16,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-03 04:42:16,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-03 04:42:16,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 204 states have (on average 1.2450980392156863) internal successors, (254), 213 states have internal predecessors, (254), 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) [2021-11-03 04:42:16,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 254 transitions. [2021-11-03 04:42:16,237 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 254 transitions. Word has length 110 [2021-11-03 04:42:16,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:16,238 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 254 transitions. [2021-11-03 04:42:16,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2021-11-03 04:42:16,238 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 254 transitions. [2021-11-03 04:42:16,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-03 04:42:16,241 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:16,241 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:16,270 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:16,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:42:16,459 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:16,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:16,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2021-11-03 04:42:16,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:16,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1306673612] [2021-11-03 04:42:16,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:16,461 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:16,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:16,462 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:16,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:42:17,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:17,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:42:17,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 04:42:17,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:17,655 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 04:42:17,656 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:17,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1306673612] [2021-11-03 04:42:17,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1306673612] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:42:17,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:42:17,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:42:17,656 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816360953] [2021-11-03 04:42:17,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:42:17,657 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:17,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:42:17,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:42:17,658 INFO L87 Difference]: Start difference. First operand 214 states and 254 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-03 04:42:17,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:17,709 INFO L93 Difference]: Finished difference Result 393 states and 478 transitions. [2021-11-03 04:42:17,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:42:17,710 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 117 [2021-11-03 04:42:17,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:17,713 INFO L225 Difference]: With dead ends: 393 [2021-11-03 04:42:17,713 INFO L226 Difference]: Without dead ends: 220 [2021-11-03 04:42:17,714 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:42:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-03 04:42:17,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-03 04:42:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 210 states have (on average 1.2380952380952381) internal successors, (260), 219 states have internal predecessors, (260), 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) [2021-11-03 04:42:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 260 transitions. [2021-11-03 04:42:17,726 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 260 transitions. Word has length 117 [2021-11-03 04:42:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:17,728 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 260 transitions. [2021-11-03 04:42:17,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2021-11-03 04:42:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 260 transitions. [2021-11-03 04:42:17,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-03 04:42:17,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:17,734 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:17,757 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:17,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:42:17,951 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:17,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:17,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1351948363, now seen corresponding path program 1 times [2021-11-03 04:42:17,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:17,953 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [346148771] [2021-11-03 04:42:17,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:17,953 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:17,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:17,954 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:17,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:42:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:18,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:42:18,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:18,937 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:42:18,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:19,295 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:42:19,295 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:19,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [346148771] [2021-11-03 04:42:19,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [346148771] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:42:19,296 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1915398004] [2021-11-03 04:42:19,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:19,296 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:42:19,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:42:19,302 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:42:19,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-03 04:42:20,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:20,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:42:20,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:20,455 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:42:20,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:20,737 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:42:20,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1915398004] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:42:20,737 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558948463] [2021-11-03 04:42:20,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:42:20,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:42:20,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:42:20,739 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:42:20,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 04:42:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:42:21,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:42:21,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:21,915 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 04:42:21,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:22,523 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 04:42:22,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558948463] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:42:22,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:42:22,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 14 [2021-11-03 04:42:22,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655147434] [2021-11-03 04:42:22,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 04:42:22,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:22,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 04:42:22,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:42:22,526 INFO L87 Difference]: Start difference. First operand 220 states and 260 transitions. Second operand has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 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) [2021-11-03 04:42:26,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:26,314 INFO L93 Difference]: Finished difference Result 781 states and 960 transitions. [2021-11-03 04:42:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-03 04:42:26,323 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 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 120 [2021-11-03 04:42:26,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:26,327 INFO L225 Difference]: With dead ends: 781 [2021-11-03 04:42:26,327 INFO L226 Difference]: Without dead ends: 604 [2021-11-03 04:42:26,329 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=689, Invalid=1963, Unknown=0, NotChecked=0, Total=2652 [2021-11-03 04:42:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-03 04:42:26,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-11-03 04:42:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 594 states have (on average 1.1851851851851851) internal successors, (704), 603 states have internal predecessors, (704), 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) [2021-11-03 04:42:26,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 704 transitions. [2021-11-03 04:42:26,365 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 704 transitions. Word has length 120 [2021-11-03 04:42:26,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:26,365 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 704 transitions. [2021-11-03 04:42:26,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 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) [2021-11-03 04:42:26,366 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 704 transitions. [2021-11-03 04:42:26,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-03 04:42:26,371 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:26,372 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:26,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:26,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-11-03 04:42:26,812 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-03 04:42:26,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:42:26,999 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:26,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:26,999 INFO L85 PathProgramCache]: Analyzing trace with hash -574302741, now seen corresponding path program 2 times [2021-11-03 04:42:27,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:27,000 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [696223978] [2021-11-03 04:42:27,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:42:27,001 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:27,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:27,002 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:27,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:42:28,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 04:42:28,088 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:42:28,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:42:28,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:29,003 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:42:29,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:42:30,049 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:42:30,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [696223978] [2021-11-03 04:42:30,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [696223978] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:42:30,049 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [479427552] [2021-11-03 04:42:30,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:42:30,050 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:42:30,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:42:30,054 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:42:30,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-03 04:42:31,736 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 04:42:31,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:42:31,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:42:31,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:42:32,446 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:33,192 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:42:33,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [479427552] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:42:33,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364578674] [2021-11-03 04:42:33,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:42:33,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:42:33,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:42:33,201 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:42:33,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 04:42:34,592 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 04:42:34,592 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:42:34,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:42:34,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:42:35,469 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-03 04:42:35,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:42:36,470 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-03 04:42:36,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364578674] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:42:36,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:42:36,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 6, 6] total 23 [2021-11-03 04:42:36,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504759162] [2021-11-03 04:42:36,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-03 04:42:36,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:42:36,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-03 04:42:36,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:42:36,474 INFO L87 Difference]: Start difference. First operand 604 states and 704 transitions. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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) [2021-11-03 04:42:39,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:42:39,209 INFO L93 Difference]: Finished difference Result 1733 states and 2131 transitions. [2021-11-03 04:42:39,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-03 04:42:39,211 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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 330 [2021-11-03 04:42:39,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:42:39,235 INFO L225 Difference]: With dead ends: 1733 [2021-11-03 04:42:39,239 INFO L226 Difference]: Without dead ends: 1176 [2021-11-03 04:42:39,241 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1988 GetRequests, 1960 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=311, Invalid=559, Unknown=0, NotChecked=0, Total=870 [2021-11-03 04:42:39,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2021-11-03 04:42:39,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 724. [2021-11-03 04:42:39,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 714 states have (on average 1.1624649859943978) internal successors, (830), 723 states have internal predecessors, (830), 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) [2021-11-03 04:42:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 830 transitions. [2021-11-03 04:42:39,332 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 830 transitions. Word has length 330 [2021-11-03 04:42:39,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:42:39,334 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 830 transitions. [2021-11-03 04:42:39,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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) [2021-11-03 04:42:39,334 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 830 transitions. [2021-11-03 04:42:39,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-03 04:42:39,340 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:42:39,341 INFO L513 BasicCegarLoop]: trace histogram [14, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:42:39,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:39,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:39,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:42:39,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:42:39,963 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:42:39,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:42:39,963 INFO L85 PathProgramCache]: Analyzing trace with hash 890409067, now seen corresponding path program 3 times [2021-11-03 04:42:39,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:42:39,965 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [851547361] [2021-11-03 04:42:39,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:42:39,965 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:42:39,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:42:39,966 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:42:39,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_34283e80-d89a-402d-a220-2fa591900c82/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process