./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:17:36,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:17:36,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:17:37,004 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:17:37,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:17:37,006 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:17:37,008 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:17:37,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:17:37,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:17:37,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:17:37,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:17:37,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:17:37,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:17:37,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:17:37,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:17:37,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:17:37,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:17:37,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:17:37,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:17:37,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:17:37,034 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:17:37,036 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:17:37,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:17:37,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:17:37,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:17:37,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:17:37,045 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:17:37,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:17:37,047 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:17:37,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:17:37,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:17:37,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:17:37,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:17:37,053 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:17:37,054 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:17:37,055 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:17:37,056 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:17:37,056 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:17:37,057 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:17:37,058 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:17:37,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:17:37,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 00:17:37,090 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:17:37,090 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:17:37,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:17:37,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:17:37,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:17:37,092 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:17:37,093 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:17:37,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:17:37,093 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:17:37,094 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:17:37,094 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:17:37,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:17:37,095 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:17:37,095 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:17:37,095 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:17:37,096 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:17:37,096 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:17:37,097 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:17:37,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:17:37,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:17:37,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:17:37,098 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:17:37,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:17:37,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:17:37,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:17:37,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:17:37,100 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:17:37,100 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:17:37,101 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:17:37,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:17:37,101 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:17:37,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:17:37,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:17:37,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:17:37,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:17:37,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:17:37,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:17:37,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:17:37,104 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:17:37,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:17:37,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:17:37,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:17:37,105 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_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 [2021-11-21 00:17:37,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:17:37,399 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:17:37,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:17:37,402 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:17:37,403 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:17:37,405 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i [2021-11-21 00:17:37,471 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/a9cd38610/b24afe29027f457fb64f768b96bdc1ca/FLAGfe26ace21 [2021-11-21 00:17:38,150 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:17:38,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i [2021-11-21 00:17:38,179 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/a9cd38610/b24afe29027f457fb64f768b96bdc1ca/FLAGfe26ace21 [2021-11-21 00:17:38,376 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/a9cd38610/b24afe29027f457fb64f768b96bdc1ca [2021-11-21 00:17:38,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:17:38,380 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:17:38,386 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:17:38,386 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:17:38,390 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:17:38,391 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:17:38" (1/1) ... [2021-11-21 00:17:38,393 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2adc820f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:38, skipping insertion in model container [2021-11-21 00:17:38,393 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:17:38" (1/1) ... [2021-11-21 00:17:38,401 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:17:38,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:17:38,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i[33021,33034] [2021-11-21 00:17:38,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:17:38,991 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) [2021-11-21 00:17:38,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7b6c8c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:38, skipping insertion in model container [2021-11-21 00:17:38,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:17:38,992 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-21 00:17:38,995 INFO L158 Benchmark]: Toolchain (without parser) took 613.08ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 52.1MB in the beginning and 81.7MB in the end (delta: -29.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:17:38,996 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:17:38,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 606.24ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 81.7MB in the end (delta: -29.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:17:38,999 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 606.24ms. Allocated memory was 90.2MB in the beginning and 111.1MB in the end (delta: 21.0MB). Free memory was 51.9MB in the beginning and 81.7MB in the end (delta: -29.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * 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_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:17:41,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:17:41,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:17:41,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:17:41,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:17:41,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:17:41,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:17:41,575 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:17:41,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:17:41,585 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:17:41,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:17:41,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:17:41,588 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:17:41,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:17:41,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:17:41,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:17:41,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:17:41,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:17:41,601 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:17:41,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:17:41,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:17:41,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:17:41,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:17:41,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:17:41,616 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:17:41,616 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:17:41,617 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:17:41,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:17:41,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:17:41,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:17:41,620 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:17:41,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:17:41,621 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:17:41,622 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:17:41,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:17:41,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:17:41,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:17:41,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:17:41,624 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:17:41,624 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:17:41,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:17:41,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-21 00:17:41,675 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:17:41,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:17:41,676 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:17:41,676 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:17:41,677 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:17:41,677 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:17:41,677 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:17:41,678 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:17:41,678 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:17:41,678 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:17:41,679 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:17:41,679 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:17:41,681 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:17:41,681 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:17:41,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:17:41,682 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:17:41,682 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:17:41,682 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:17:41,682 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:17:41,683 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:17:41,683 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:17:41,683 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:17:41,683 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:17:41,683 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:17:41,684 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:17:41,684 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:17:41,684 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:17:41,684 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:17:41,685 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:17:41,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:17:41,685 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:17:41,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:17:41,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:17:41,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:17:41,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:17:41,687 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:17:41,687 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:17:41,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:17:41,687 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:17:41,688 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_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec105877a5c5817dc7d6d5e780267dcadb379ad27281f7d8981115c8613ba085 [2021-11-21 00:17:42,113 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:17:42,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:17:42,142 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:17:42,143 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:17:42,144 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:17:42,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i [2021-11-21 00:17:42,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/e2935105b/bbfa473d83ff4cc3983aabd1e99875a3/FLAGcb0126ecd [2021-11-21 00:17:43,005 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:17:43,006 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i [2021-11-21 00:17:43,033 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/e2935105b/bbfa473d83ff4cc3983aabd1e99875a3/FLAGcb0126ecd [2021-11-21 00:17:43,221 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/data/e2935105b/bbfa473d83ff4cc3983aabd1e99875a3 [2021-11-21 00:17:43,224 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:17:43,227 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:17:43,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:17:43,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:17:43,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:17:43,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:17:43" (1/1) ... [2021-11-21 00:17:43,241 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f883f5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:43, skipping insertion in model container [2021-11-21 00:17:43,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:17:43" (1/1) ... [2021-11-21 00:17:43,250 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:17:43,315 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:17:43,833 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i[33021,33034] [2021-11-21 00:17:44,012 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:17:44,033 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-21 00:17:44,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:17:44,091 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i[33021,33034] [2021-11-21 00:17:44,188 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:17:44,204 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:17:44,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-1.i[33021,33034] [2021-11-21 00:17:44,304 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:17:44,372 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:17:44,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44 WrapperNode [2021-11-21 00:17:44,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:17:44,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:17:44,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:17:44,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:17:44,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,523 INFO L137 Inliner]: procedures = 180, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 628 [2021-11-21 00:17:44,538 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:17:44,538 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:17:44,539 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:17:44,539 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:17:44,554 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,554 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,665 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:17:44,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:17:44,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:17:44,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:17:44,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (1/1) ... [2021-11-21 00:17:44,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:17:44,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:17:44,738 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:17:44,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:17:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-21 00:17:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:17:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:17:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:17:44,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:17:44,794 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:17:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:17:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:17:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:17:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:17:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:17:44,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:17:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:17:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:17:44,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:17:44,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:17:44,971 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:17:44,973 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:17:44,977 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-21 00:17:48,406 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:17:48,419 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:17:48,420 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-21 00:17:48,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:17:48 BoogieIcfgContainer [2021-11-21 00:17:48,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:17:48,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:17:48,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:17:48,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:17:48,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:17:43" (1/3) ... [2021-11-21 00:17:48,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1120e241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:17:48, skipping insertion in model container [2021-11-21 00:17:48,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:17:44" (2/3) ... [2021-11-21 00:17:48,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1120e241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:17:48, skipping insertion in model container [2021-11-21 00:17:48,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:17:48" (3/3) ... [2021-11-21 00:17:48,432 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-1.i [2021-11-21 00:17:48,439 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:17:48,439 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 330 error locations. [2021-11-21 00:17:48,517 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:17:48,537 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=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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 [2021-11-21 00:17:48,537 INFO L340 AbstractCegarLoop]: Starting to check reachability of 330 error locations. [2021-11-21 00:17:48,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 668 states, 325 states have (on average 2.230769230769231) internal successors, (725), 662 states have internal predecessors, (725), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 00:17:48,591 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:48,591 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 00:17:48,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:48,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:48,604 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-21 00:17:48,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:48,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1442545917] [2021-11-21 00:17:48,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:48,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:48,628 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:48,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:17:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:48,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 00:17:48,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:48,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:48,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:48,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:48,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:48,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1442545917] [2021-11-21 00:17:48,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1442545917] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:48,882 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:48,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:17:48,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290010469] [2021-11-21 00:17:48,886 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:48,890 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:17:48,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:48,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:17:48,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:17:48,941 INFO L87 Difference]: Start difference. First operand has 668 states, 325 states have (on average 2.230769230769231) internal successors, (725), 662 states have internal predecessors, (725), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-21 00:17:49,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:49,031 INFO L93 Difference]: Finished difference Result 659 states and 706 transitions. [2021-11-21 00:17:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:17:49,035 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2021-11-21 00:17:49,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:49,053 INFO L225 Difference]: With dead ends: 659 [2021-11-21 00:17:49,054 INFO L226 Difference]: Without dead ends: 657 [2021-11-21 00:17:49,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:17:49,059 INFO L933 BasicCegarLoop]: 706 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:49,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:17:49,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 657 states. [2021-11-21 00:17:49,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 657 to 657. [2021-11-21 00:17:49,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 657 states, 320 states have (on average 2.11875) internal successors, (678), 651 states have internal predecessors, (678), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:49,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 657 states to 657 states and 704 transitions. [2021-11-21 00:17:49,165 INFO L78 Accepts]: Start accepts. Automaton has 657 states and 704 transitions. Word has length 5 [2021-11-21 00:17:49,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:49,177 INFO L470 AbstractCegarLoop]: Abstraction has 657 states and 704 transitions. [2021-11-21 00:17:49,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2021-11-21 00:17:49,178 INFO L276 IsEmpty]: Start isEmpty. Operand 657 states and 704 transitions. [2021-11-21 00:17:49,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 00:17:49,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:49,179 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 00:17:49,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:49,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:49,380 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:49,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:49,383 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-21 00:17:49,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:49,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1206375715] [2021-11-21 00:17:49,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:49,386 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:49,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:49,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:49,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:17:49,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:49,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:17:49,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:49,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:17:49,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:49,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:49,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:49,708 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:49,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1206375715] [2021-11-21 00:17:49,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1206375715] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:49,716 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:49,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:17:49,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95467380] [2021-11-21 00:17:49,717 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:49,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:17:49,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:49,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:17:49,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:49,720 INFO L87 Difference]: Start difference. First operand 657 states and 704 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-21 00:17:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:51,217 INFO L93 Difference]: Finished difference Result 615 states and 663 transitions. [2021-11-21 00:17:51,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:51,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2021-11-21 00:17:51,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:51,231 INFO L225 Difference]: With dead ends: 615 [2021-11-21 00:17:51,232 INFO L226 Difference]: Without dead ends: 615 [2021-11-21 00:17:51,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:17:51,234 INFO L933 BasicCegarLoop]: 334 mSDtfsCounter, 596 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 609 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:51,235 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [609 Valid, 351 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 00:17:51,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2021-11-21 00:17:51,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 608. [2021-11-21 00:17:51,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 608 states, 320 states have (on average 1.965625) internal successors, (629), 602 states have internal predecessors, (629), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:51,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 655 transitions. [2021-11-21 00:17:51,265 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 655 transitions. Word has length 5 [2021-11-21 00:17:51,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:51,265 INFO L470 AbstractCegarLoop]: Abstraction has 608 states and 655 transitions. [2021-11-21 00:17:51,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2021-11-21 00:17:51,266 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 655 transitions. [2021-11-21 00:17:51,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 00:17:51,267 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:51,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 00:17:51,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:51,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:51,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:51,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-21 00:17:51,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:51,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1500302129] [2021-11-21 00:17:51,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:51,485 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:51,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:51,491 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:51,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:17:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:51,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:51,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:51,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:17:51,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:51,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:51,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:51,745 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:51,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1500302129] [2021-11-21 00:17:51,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1500302129] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:51,745 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:51,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:17:51,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515823872] [2021-11-21 00:17:51,746 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:51,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:51,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:51,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:51,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:51,748 INFO L87 Difference]: Start difference. First operand 608 states and 655 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-11-21 00:17:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:54,707 INFO L93 Difference]: Finished difference Result 681 states and 732 transitions. [2021-11-21 00:17:54,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:54,709 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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 5 [2021-11-21 00:17:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:54,718 INFO L225 Difference]: With dead ends: 681 [2021-11-21 00:17:54,719 INFO L226 Difference]: Without dead ends: 681 [2021-11-21 00:17:54,719 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:54,724 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 577 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 588 SdHoareTripleChecker+Valid, 696 SdHoareTripleChecker+Invalid, 441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:54,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [588 Valid, 696 Invalid, 441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-21 00:17:54,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2021-11-21 00:17:54,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 630. [2021-11-21 00:17:54,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 630 states, 352 states have (on average 1.9460227272727273) internal successors, (685), 624 states have internal predecessors, (685), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 00:17:54,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 711 transitions. [2021-11-21 00:17:54,752 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 711 transitions. Word has length 5 [2021-11-21 00:17:54,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:54,752 INFO L470 AbstractCegarLoop]: Abstraction has 630 states and 711 transitions. [2021-11-21 00:17:54,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 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) [2021-11-21 00:17:54,753 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 711 transitions. [2021-11-21 00:17:54,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 00:17:54,754 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:54,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-21 00:17:54,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:54,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:54,967 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr322REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:54,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:54,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1156735106, now seen corresponding path program 1 times [2021-11-21 00:17:54,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:54,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1737300981] [2021-11-21 00:17:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:54,969 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:54,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:54,973 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:54,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:17:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:55,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:17:55,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:55,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:55,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:55,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:55,098 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:55,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1737300981] [2021-11-21 00:17:55,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1737300981] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:55,099 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:55,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:17:55,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689417138] [2021-11-21 00:17:55,100 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:55,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:55,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:55,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:55,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:55,102 INFO L87 Difference]: Start difference. First operand 630 states and 711 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-21 00:17:55,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:55,233 INFO L93 Difference]: Finished difference Result 1212 states and 1354 transitions. [2021-11-21 00:17:55,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:55,234 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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 6 [2021-11-21 00:17:55,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:55,242 INFO L225 Difference]: With dead ends: 1212 [2021-11-21 00:17:55,243 INFO L226 Difference]: Without dead ends: 1212 [2021-11-21 00:17:55,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:55,244 INFO L933 BasicCegarLoop]: 866 mSDtfsCounter, 1138 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1144 SdHoareTripleChecker+Valid, 1572 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:55,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1144 Valid, 1572 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:17:55,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1212 states. [2021-11-21 00:17:55,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1212 to 952. [2021-11-21 00:17:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 952 states, 674 states have (on average 1.9614243323442135) internal successors, (1322), 943 states have internal predecessors, (1322), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:17:55,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1354 transitions. [2021-11-21 00:17:55,287 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1354 transitions. Word has length 6 [2021-11-21 00:17:55,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:55,287 INFO L470 AbstractCegarLoop]: Abstraction has 952 states and 1354 transitions. [2021-11-21 00:17:55,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 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) [2021-11-21 00:17:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1354 transitions. [2021-11-21 00:17:55,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:17:55,288 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:55,289 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:55,313 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:55,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:55,510 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:55,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:55,511 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-21 00:17:55,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:55,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [438258060] [2021-11-21 00:17:55,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:55,512 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:55,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:55,512 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:55,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 00:17:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:55,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:17:55,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:55,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:55,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:55,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:55,696 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:55,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [438258060] [2021-11-21 00:17:55,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [438258060] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:55,696 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:55,697 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:17:55,697 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113263721] [2021-11-21 00:17:55,697 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:55,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:55,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:55,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:55,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:55,699 INFO L87 Difference]: Start difference. First operand 952 states and 1354 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-11-21 00:17:55,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:55,752 INFO L93 Difference]: Finished difference Result 892 states and 1268 transitions. [2021-11-21 00:17:55,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:17:55,753 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 11 [2021-11-21 00:17:55,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:55,760 INFO L225 Difference]: With dead ends: 892 [2021-11-21 00:17:55,760 INFO L226 Difference]: Without dead ends: 892 [2021-11-21 00:17:55,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:55,762 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 563 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:55,762 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [576 Valid, 657 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:17:55,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 892 states. [2021-11-21 00:17:55,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 892 to 892. [2021-11-21 00:17:55,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 892 states, 638 states have (on average 1.9373040752351096) internal successors, (1236), 883 states have internal predecessors, (1236), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:17:55,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 892 states to 892 states and 1268 transitions. [2021-11-21 00:17:55,794 INFO L78 Accepts]: Start accepts. Automaton has 892 states and 1268 transitions. Word has length 11 [2021-11-21 00:17:55,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:55,795 INFO L470 AbstractCegarLoop]: Abstraction has 892 states and 1268 transitions. [2021-11-21 00:17:55,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2021-11-21 00:17:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 892 states and 1268 transitions. [2021-11-21 00:17:55,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:17:55,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:55,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:55,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:56,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:56,010 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:56,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:56,011 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-21 00:17:56,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:56,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326310075] [2021-11-21 00:17:56,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:56,012 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:56,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:56,013 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:56,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 00:17:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:56,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:56,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:56,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:56,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:56,250 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:56,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326310075] [2021-11-21 00:17:56,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326310075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:56,251 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:56,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 00:17:56,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422704798] [2021-11-21 00:17:56,251 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:56,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:17:56,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:56,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:17:56,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:56,253 INFO L87 Difference]: Start difference. First operand 892 states and 1268 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:56,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:56,357 INFO L93 Difference]: Finished difference Result 864 states and 1212 transitions. [2021-11-21 00:17:56,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:17:56,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 00:17:56,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:56,365 INFO L225 Difference]: With dead ends: 864 [2021-11-21 00:17:56,366 INFO L226 Difference]: Without dead ends: 864 [2021-11-21 00:17:56,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:17:56,368 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 534 mSDsluCounter, 605 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 1157 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:56,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [547 Valid, 1157 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:17:56,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2021-11-21 00:17:56,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 862. [2021-11-21 00:17:56,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 622 states have (on average 1.8938906752411575) internal successors, (1178), 853 states have internal predecessors, (1178), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:17:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1210 transitions. [2021-11-21 00:17:56,405 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1210 transitions. Word has length 13 [2021-11-21 00:17:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:56,407 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1210 transitions. [2021-11-21 00:17:56,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:17:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1210 transitions. [2021-11-21 00:17:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:17:56,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:56,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:56,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-21 00:17:56,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:56,622 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:56,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:56,623 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-21 00:17:56,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:56,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [287891253] [2021-11-21 00:17:56,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:56,624 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:56,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:56,625 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:56,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 00:17:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:56,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:17:56,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:56,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:17:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:56,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:57,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:57,015 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:57,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [287891253] [2021-11-21 00:17:57,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [287891253] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:57,015 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:57,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:17:57,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334851788] [2021-11-21 00:17:57,016 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:57,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:17:57,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:57,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:17:57,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:17:57,017 INFO L87 Difference]: Start difference. First operand 862 states and 1210 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-11-21 00:17:58,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:17:58,522 INFO L93 Difference]: Finished difference Result 912 states and 1277 transitions. [2021-11-21 00:17:58,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:17:58,523 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-11-21 00:17:58,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:17:58,530 INFO L225 Difference]: With dead ends: 912 [2021-11-21 00:17:58,530 INFO L226 Difference]: Without dead ends: 912 [2021-11-21 00:17:58,530 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:17:58,531 INFO L933 BasicCegarLoop]: 297 mSDtfsCounter, 960 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:17:58,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [970 Valid, 385 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 00:17:58,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states. [2021-11-21 00:17:58,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 858. [2021-11-21 00:17:58,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 858 states, 622 states have (on average 1.8810289389067525) internal successors, (1170), 849 states have internal predecessors, (1170), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:17:58,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 858 states and 1202 transitions. [2021-11-21 00:17:58,567 INFO L78 Accepts]: Start accepts. Automaton has 858 states and 1202 transitions. Word has length 27 [2021-11-21 00:17:58,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:17:58,567 INFO L470 AbstractCegarLoop]: Abstraction has 858 states and 1202 transitions. [2021-11-21 00:17:58,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-11-21 00:17:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 858 states and 1202 transitions. [2021-11-21 00:17:58,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:17:58,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:17:58,569 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:17:58,585 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:17:58,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:17:58,782 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:17:58,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:17:58,783 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-21 00:17:58,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:17:58,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1570631023] [2021-11-21 00:17:58,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:17:58,784 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:17:58,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:17:58,785 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:17:58,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 00:17:58,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:17:58,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:17:58,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:17:58,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:17:59,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:59,186 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:17:59,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:17:59,657 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:17:59,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1570631023] [2021-11-21 00:17:59,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1570631023] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:17:59,658 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:17:59,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:17:59,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386268019] [2021-11-21 00:17:59,658 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:17:59,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:17:59,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:17:59,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:17:59,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:17:59,659 INFO L87 Difference]: Start difference. First operand 858 states and 1202 transitions. Second operand has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-11-21 00:18:05,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:05,158 INFO L93 Difference]: Finished difference Result 959 states and 1295 transitions. [2021-11-21 00:18:05,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 00:18:05,160 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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 27 [2021-11-21 00:18:05,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:05,166 INFO L225 Difference]: With dead ends: 959 [2021-11-21 00:18:05,167 INFO L226 Difference]: Without dead ends: 959 [2021-11-21 00:18:05,167 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-21 00:18:05,168 INFO L933 BasicCegarLoop]: 459 mSDtfsCounter, 489 mSDsluCounter, 771 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 499 SdHoareTripleChecker+Valid, 1230 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:05,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [499 Valid, 1230 Invalid, 1152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1120 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-11-21 00:18:05,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2021-11-21 00:18:05,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 854. [2021-11-21 00:18:05,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 622 states have (on average 1.8681672025723473) internal successors, (1162), 845 states have internal predecessors, (1162), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:18:05,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 1194 transitions. [2021-11-21 00:18:05,201 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 1194 transitions. Word has length 27 [2021-11-21 00:18:05,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:05,202 INFO L470 AbstractCegarLoop]: Abstraction has 854 states and 1194 transitions. [2021-11-21 00:18:05,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.4) internal successors, (52), 6 states have internal predecessors, (52), 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) [2021-11-21 00:18:05,202 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 1194 transitions. [2021-11-21 00:18:05,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-21 00:18:05,203 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:05,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:05,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-21 00:18:05,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:05,418 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:05,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:05,418 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-21 00:18:05,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:05,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [374778581] [2021-11-21 00:18:05,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:05,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:05,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:05,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:05,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 00:18:05,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:05,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:18:05,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:05,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:05,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:05,852 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:05,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [374778581] [2021-11-21 00:18:05,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [374778581] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:05,852 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:05,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:18:05,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268192646] [2021-11-21 00:18:05,853 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:05,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:18:05,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:05,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:18:05,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:18:05,855 INFO L87 Difference]: Start difference. First operand 854 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2021-11-21 00:18:05,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:05,918 INFO L93 Difference]: Finished difference Result 842 states and 1174 transitions. [2021-11-21 00:18:05,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:18:05,918 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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 42 [2021-11-21 00:18:05,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:05,927 INFO L225 Difference]: With dead ends: 842 [2021-11-21 00:18:05,927 INFO L226 Difference]: Without dead ends: 842 [2021-11-21 00:18:05,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:18:05,930 INFO L933 BasicCegarLoop]: 546 mSDtfsCounter, 510 mSDsluCounter, 559 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1105 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:05,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [523 Valid, 1105 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:18:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2021-11-21 00:18:05,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 842. [2021-11-21 00:18:05,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 842 states, 610 states have (on average 1.8721311475409836) internal successors, (1142), 833 states have internal predecessors, (1142), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:18:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 842 states to 842 states and 1174 transitions. [2021-11-21 00:18:05,981 INFO L78 Accepts]: Start accepts. Automaton has 842 states and 1174 transitions. Word has length 42 [2021-11-21 00:18:05,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:05,984 INFO L470 AbstractCegarLoop]: Abstraction has 842 states and 1174 transitions. [2021-11-21 00:18:05,984 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2021-11-21 00:18:05,984 INFO L276 IsEmpty]: Start isEmpty. Operand 842 states and 1174 transitions. [2021-11-21 00:18:05,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-21 00:18:05,989 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:05,989 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:06,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:06,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:06,204 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:06,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:06,205 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-21 00:18:06,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:06,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681217017] [2021-11-21 00:18:06,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:06,206 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:06,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:06,207 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:06,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-21 00:18:06,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:06,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:18:06,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:06,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:07,246 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:07,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681217017] [2021-11-21 00:18:07,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681217017] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:07,246 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:07,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:18:07,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697412519] [2021-11-21 00:18:07,246 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:07,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:18:07,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:07,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:18:07,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:18:07,248 INFO L87 Difference]: Start difference. First operand 842 states and 1174 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-21 00:18:07,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:07,332 INFO L93 Difference]: Finished difference Result 792 states and 1069 transitions. [2021-11-21 00:18:07,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:18:07,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 50 [2021-11-21 00:18:07,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:07,339 INFO L225 Difference]: With dead ends: 792 [2021-11-21 00:18:07,339 INFO L226 Difference]: Without dead ends: 792 [2021-11-21 00:18:07,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:18:07,340 INFO L933 BasicCegarLoop]: 554 mSDtfsCounter, 67 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1012 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:07,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 1012 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:18:07,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 792 states. [2021-11-21 00:18:07,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 792 to 792. [2021-11-21 00:18:07,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 792 states, 560 states have (on average 1.8517857142857144) internal successors, (1037), 783 states have internal predecessors, (1037), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:18:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 792 states to 792 states and 1069 transitions. [2021-11-21 00:18:07,364 INFO L78 Accepts]: Start accepts. Automaton has 792 states and 1069 transitions. Word has length 50 [2021-11-21 00:18:07,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:07,364 INFO L470 AbstractCegarLoop]: Abstraction has 792 states and 1069 transitions. [2021-11-21 00:18:07,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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) [2021-11-21 00:18:07,365 INFO L276 IsEmpty]: Start isEmpty. Operand 792 states and 1069 transitions. [2021-11-21 00:18:07,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-21 00:18:07,366 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:07,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:07,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:07,583 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:07,583 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:07,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:07,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-21 00:18:07,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:07,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2119278834] [2021-11-21 00:18:07,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:07,585 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:07,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:07,586 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:07,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-21 00:18:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:07,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:18:07,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:07,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:18:07,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:18:08,717 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:18:08,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 00:18:08,728 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:18:08,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2021-11-21 00:18:08,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:08,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:13,960 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:13,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2119278834] [2021-11-21 00:18:13,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2119278834] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:13,961 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:13,961 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:18:13,961 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358157204] [2021-11-21 00:18:13,961 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:13,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:18:13,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:13,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:18:13,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-21 00:18:13,965 INFO L87 Difference]: Start difference. First operand 792 states and 1069 transitions. Second operand has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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) [2021-11-21 00:18:17,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:17,196 INFO L93 Difference]: Finished difference Result 963 states and 1185 transitions. [2021-11-21 00:18:17,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:18:17,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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 53 [2021-11-21 00:18:17,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:17,203 INFO L225 Difference]: With dead ends: 963 [2021-11-21 00:18:17,203 INFO L226 Difference]: Without dead ends: 963 [2021-11-21 00:18:17,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-21 00:18:17,205 INFO L933 BasicCegarLoop]: 288 mSDtfsCounter, 1127 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 1334 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 646 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:17,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 628 Invalid, 1334 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 631 Invalid, 0 Unknown, 646 Unchecked, 3.2s Time] [2021-11-21 00:18:17,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2021-11-21 00:18:17,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 773. [2021-11-21 00:18:17,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 573 states have (on average 1.7399650959860384) internal successors, (997), 764 states have internal predecessors, (997), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:18:17,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1029 transitions. [2021-11-21 00:18:17,229 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1029 transitions. Word has length 53 [2021-11-21 00:18:17,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:17,229 INFO L470 AbstractCegarLoop]: Abstraction has 773 states and 1029 transitions. [2021-11-21 00:18:17,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.8) internal successors, (104), 6 states have internal predecessors, (104), 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) [2021-11-21 00:18:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1029 transitions. [2021-11-21 00:18:17,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 00:18:17,231 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:17,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:17,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:17,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:17,447 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:17,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:17,447 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-21 00:18:17,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:17,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2042877804] [2021-11-21 00:18:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:17,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:17,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:17,451 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:17,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-21 00:18:17,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:17,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:18:17,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:17,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:17,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:17,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-21 00:18:18,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:18,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:18,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2042877804] [2021-11-21 00:18:18,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2042877804] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:18,373 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:18,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:18:18,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340598758] [2021-11-21 00:18:18,374 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:18,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:18:18,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:18,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:18:18,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:18:18,375 INFO L87 Difference]: Start difference. First operand 773 states and 1029 transitions. Second operand has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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) [2021-11-21 00:18:20,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:20,052 INFO L93 Difference]: Finished difference Result 771 states and 1025 transitions. [2021-11-21 00:18:20,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:18:20,053 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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 55 [2021-11-21 00:18:20,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:20,058 INFO L225 Difference]: With dead ends: 771 [2021-11-21 00:18:20,059 INFO L226 Difference]: Without dead ends: 771 [2021-11-21 00:18:20,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:18:20,060 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 1246 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1249 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:20,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1249 Valid, 469 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 00:18:20,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2021-11-21 00:18:20,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 771. [2021-11-21 00:18:20,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 573 states have (on average 1.7329842931937174) internal successors, (993), 762 states have internal predecessors, (993), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:18:20,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 1025 transitions. [2021-11-21 00:18:20,082 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 1025 transitions. Word has length 55 [2021-11-21 00:18:20,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:20,082 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 1025 transitions. [2021-11-21 00:18:20,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 21.6) internal successors, (108), 6 states have internal predecessors, (108), 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) [2021-11-21 00:18:20,083 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 1025 transitions. [2021-11-21 00:18:20,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-21 00:18:20,084 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:20,084 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:20,106 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:20,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:20,299 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:20,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:20,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-21 00:18:20,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:20,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1027989254] [2021-11-21 00:18:20,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:20,300 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:20,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:20,301 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:20,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-21 00:18:20,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:20,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:18:20,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:20,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:18:20,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 00:18:20,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-21 00:18:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:20,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:20,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:20,860 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:20,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1027989254] [2021-11-21 00:18:20,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1027989254] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:20,861 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:20,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:18:20,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875541783] [2021-11-21 00:18:20,862 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:20,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:18:20,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:20,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:18:20,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:18:20,863 INFO L87 Difference]: Start difference. First operand 771 states and 1025 transitions. Second operand has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2021-11-21 00:18:22,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:22,805 INFO L93 Difference]: Finished difference Result 770 states and 1023 transitions. [2021-11-21 00:18:22,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:18:22,806 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-21 00:18:22,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:22,811 INFO L225 Difference]: With dead ends: 770 [2021-11-21 00:18:22,811 INFO L226 Difference]: Without dead ends: 770 [2021-11-21 00:18:22,812 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 3 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:18:22,812 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 4 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1337 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:22,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 1337 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 00:18:22,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2021-11-21 00:18:22,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2021-11-21 00:18:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 573 states have (on average 1.7294938917975566) internal successors, (991), 761 states have internal predecessors, (991), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:18:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 1023 transitions. [2021-11-21 00:18:22,834 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 1023 transitions. Word has length 58 [2021-11-21 00:18:22,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:22,834 INFO L470 AbstractCegarLoop]: Abstraction has 770 states and 1023 transitions. [2021-11-21 00:18:22,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 14.5) internal successors, (58), 5 states have internal predecessors, (58), 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) [2021-11-21 00:18:22,835 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 1023 transitions. [2021-11-21 00:18:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-21 00:18:22,835 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:22,836 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:22,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:23,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:23,051 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:23,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:23,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-21 00:18:23,052 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:23,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193754955] [2021-11-21 00:18:23,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:23,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:23,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:23,056 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:23,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-21 00:18:23,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:23,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:18:23,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:23,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:18:23,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-21 00:18:23,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:18:23,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-21 00:18:23,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-21 00:18:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:23,455 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:23,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:23,832 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:23,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193754955] [2021-11-21 00:18:23,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193754955] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:23,833 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:23,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-21 00:18:23,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918108833] [2021-11-21 00:18:23,833 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:23,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:18:23,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:23,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:18:23,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:18:23,835 INFO L87 Difference]: Start difference. First operand 770 states and 1023 transitions. Second operand has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-11-21 00:18:29,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:29,223 INFO L93 Difference]: Finished difference Result 769 states and 1021 transitions. [2021-11-21 00:18:29,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:18:29,224 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-21 00:18:29,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:29,228 INFO L225 Difference]: With dead ends: 769 [2021-11-21 00:18:29,228 INFO L226 Difference]: Without dead ends: 769 [2021-11-21 00:18:29,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:18:29,229 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 2 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1884 SdHoareTripleChecker+Invalid, 1216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:29,230 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 1884 Invalid, 1216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1214 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2021-11-21 00:18:29,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2021-11-21 00:18:29,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 769. [2021-11-21 00:18:29,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 571 states have (on average 1.7320490367775832) internal successors, (989), 760 states have internal predecessors, (989), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:18:29,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1021 transitions. [2021-11-21 00:18:29,275 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1021 transitions. Word has length 58 [2021-11-21 00:18:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:29,275 INFO L470 AbstractCegarLoop]: Abstraction has 769 states and 1021 transitions. [2021-11-21 00:18:29,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.285714285714286) internal successors, (65), 8 states have internal predecessors, (65), 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) [2021-11-21 00:18:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1021 transitions. [2021-11-21 00:18:29,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 00:18:29,276 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:29,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:29,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:29,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:29,491 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:29,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:29,492 INFO L85 PathProgramCache]: Analyzing trace with hash -624458498, now seen corresponding path program 1 times [2021-11-21 00:18:29,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:29,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1294446164] [2021-11-21 00:18:29,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:29,492 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:29,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:29,493 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:29,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-21 00:18:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:29,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:18:29,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:29,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:29,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:30,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:30,013 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:30,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1294446164] [2021-11-21 00:18:30,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1294446164] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:18:30,014 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:18:30,014 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:18:30,014 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842428255] [2021-11-21 00:18:30,015 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:18:30,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:18:30,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:30,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:18:30,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:18:30,018 INFO L87 Difference]: Start difference. First operand 769 states and 1021 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:18:30,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:30,136 INFO L93 Difference]: Finished difference Result 779 states and 1035 transitions. [2021-11-21 00:18:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:18:30,138 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 66 [2021-11-21 00:18:30,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:30,147 INFO L225 Difference]: With dead ends: 779 [2021-11-21 00:18:30,149 INFO L226 Difference]: Without dead ends: 779 [2021-11-21 00:18:30,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:18:30,152 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 11 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:30,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 1032 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:18:30,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 779 states. [2021-11-21 00:18:30,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 779 to 779. [2021-11-21 00:18:30,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 579 states have (on average 1.7288428324697755) internal successors, (1001), 769 states have internal predecessors, (1001), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-21 00:18:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1035 transitions. [2021-11-21 00:18:30,179 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1035 transitions. Word has length 66 [2021-11-21 00:18:30,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:30,180 INFO L470 AbstractCegarLoop]: Abstraction has 779 states and 1035 transitions. [2021-11-21 00:18:30,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:18:30,181 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1035 transitions. [2021-11-21 00:18:30,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-21 00:18:30,181 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:30,182 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:30,200 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:30,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:18:30,400 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:30,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:30,400 INFO L85 PathProgramCache]: Analyzing trace with hash 327293982, now seen corresponding path program 1 times [2021-11-21 00:18:30,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:30,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [905520256] [2021-11-21 00:18:30,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:30,401 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:30,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:30,402 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:30,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-21 00:18:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:30,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:18:30,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:30,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:31,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:31,019 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:31,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [905520256] [2021-11-21 00:18:31,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [905520256] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:31,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [697925441] [2021-11-21 00:18:31,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:31,020 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:18:31,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:18:31,021 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:18:31,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-21 00:18:31,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:31,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:18:31,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:31,387 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:31,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:31,568 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:31,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [697925441] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:31,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081984002] [2021-11-21 00:18:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:18:31,569 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:31,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:18:31,570 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:18:31,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-21 00:18:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:18:31,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:18:31,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:31,966 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:31,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:32,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:32,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081984002] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:32,272 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:18:32,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-21 00:18:32,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797168571] [2021-11-21 00:18:32,272 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:18:32,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 00:18:32,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:18:32,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 00:18:32,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-21 00:18:32,274 INFO L87 Difference]: Start difference. First operand 779 states and 1035 transitions. Second operand has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:18:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:18:32,972 INFO L93 Difference]: Finished difference Result 793 states and 1053 transitions. [2021-11-21 00:18:32,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-21 00:18:32,973 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 68 [2021-11-21 00:18:32,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:18:32,979 INFO L225 Difference]: With dead ends: 793 [2021-11-21 00:18:32,979 INFO L226 Difference]: Without dead ends: 787 [2021-11-21 00:18:32,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 411 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-21 00:18:32,981 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 24 mSDsluCounter, 4599 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5116 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:18:32,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 5116 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:18:32,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2021-11-21 00:18:32,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 785. [2021-11-21 00:18:33,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 785 states, 585 states have (on average 1.7230769230769232) internal successors, (1008), 775 states have internal predecessors, (1008), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-21 00:18:33,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 785 states to 785 states and 1042 transitions. [2021-11-21 00:18:33,004 INFO L78 Accepts]: Start accepts. Automaton has 785 states and 1042 transitions. Word has length 68 [2021-11-21 00:18:33,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:18:33,005 INFO L470 AbstractCegarLoop]: Abstraction has 785 states and 1042 transitions. [2021-11-21 00:18:33,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.5) internal successors, (77), 14 states have internal predecessors, (77), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:18:33,006 INFO L276 IsEmpty]: Start isEmpty. Operand 785 states and 1042 transitions. [2021-11-21 00:18:33,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-21 00:18:33,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:18:33,007 INFO L514 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:18:33,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:33,228 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-21 00:18:33,447 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-21 00:18:33,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:33,620 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 326 more)] === [2021-11-21 00:18:33,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:18:33,621 INFO L85 PathProgramCache]: Analyzing trace with hash -1521651106, now seen corresponding path program 2 times [2021-11-21 00:18:33,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:18:33,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [273215825] [2021-11-21 00:18:33,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:18:33,622 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:18:33,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:18:33,623 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:18:33,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-21 00:18:33,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:18:33,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:18:33,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 00:18:33,945 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:34,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:34,908 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:34,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:18:34,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [273215825] [2021-11-21 00:18:34,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [273215825] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:34,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1892973652] [2021-11-21 00:18:34,909 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:18:34,909 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:18:34,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:18:34,910 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:18:34,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-21 00:18:35,759 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:18:35,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:18:35,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 00:18:35,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:35,966 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:35,966 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:18:36,355 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:18:36,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1892973652] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:18:36,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690414764] [2021-11-21 00:18:36,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:18:36,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:18:36,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:18:36,358 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:18:36,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b55646b-dae7-44d5-b4b7-7935b934407d/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-21 00:18:59,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:18:59,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:18:59,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 00:18:59,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:18:59,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:18:59,501 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:18:59,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2021-11-21 00:18:59,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-21 00:20:55,011 WARN L227 SmtUtils]: Spent 35.36s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:20:55,012 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-21 00:20:55,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 75 treesize of output 79 [2021-11-21 00:20:55,779 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-21 00:20:55,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 21 case distinctions, treesize of input 125 treesize of output 38 [2021-11-21 00:20:55,887 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:20:55,888 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:20:58,199 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:20:58,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 61 [2021-11-21 00:26:37,396 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:26:37,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 110 treesize of output 109 [2021-11-21 00:26:40,472 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) is different from false [2021-11-21 00:26:58,312 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:26:58,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690414764] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:26:58,312 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:26:58,312 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-21 00:26:58,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199523223] [2021-11-21 00:26:58,313 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:26:58,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-21 00:26:58,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:26:58,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-21 00:26:58,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=1535, Unknown=191, NotChecked=84, Total=1980 [2021-11-21 00:26:58,316 INFO L87 Difference]: Start difference. First operand 785 states and 1042 transitions. Second operand has 45 states, 43 states have (on average 4.976744186046512) internal successors, (214), 43 states have internal predecessors, (214), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:27:03,951 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_118| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-21 00:28:22,569 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_118| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_118|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))) (_ bv1 1))))) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr143|)) is different from false [2021-11-21 00:28:59,583 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_116| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr143|)) is different from false [2021-11-21 00:29:01,601 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_114| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr143|)) is different from false [2021-11-21 00:29:22,032 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr143|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (bvult (_ bv4 32) |c_#Ultimate.C_memset_#amount|) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_86|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_87|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:29:24,048 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr143|) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr143|) |c_#Ultimate.C_memset_#amount|)) is different from false [2021-11-21 00:30:05,448 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))))) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|)) is different from false [2021-11-21 00:31:25,396 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_112| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr143|)) is different from false [2021-11-21 00:31:27,410 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr143| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr143|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr143|)) is different from false [2021-11-21 00:31:29,421 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr143_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr143_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr143|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr143_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr143_108| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_107| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr143_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (_ bv1 1)))))) is different from false