./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.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_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/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_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/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_5a552d65-600b-4808-ae52-451ed4d2b32c/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 bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:08:16,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:08:16,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:08:16,562 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:08:16,563 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:08:16,564 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:08:16,566 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:08:16,569 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:08:16,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:08:16,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:08:16,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:08:16,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:08:16,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:08:16,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:08:16,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:08:16,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:08:16,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:08:16,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:08:16,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:08:16,593 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:08:16,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:08:16,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:08:16,605 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:08:16,606 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:08:16,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:08:16,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:08:16,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:08:16,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:08:16,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:08:16,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:08:16,623 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:08:16,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:08:16,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:08:16,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:08:16,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:08:16,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:08:16,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:08:16,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:08:16,638 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:08:16,639 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:08:16,640 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:08:16,641 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 01:08:16,695 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:08:16,695 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:08:16,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:08:16,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:08:16,698 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:08:16,699 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:08:16,699 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:08:16,699 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:08:16,700 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:08:16,700 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:08:16,702 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:08:16,702 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:08:16,703 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:08:16,703 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:08:16,703 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:08:16,704 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:08:16,704 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:08:16,705 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:08:16,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 01:08:16,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 01:08:16,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:08:16,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:08:16,708 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:08:16,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:08:16,710 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:08:16,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:08:16,711 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 01:08:16,711 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 01:08:16,712 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 01:08:16,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:08:16,713 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 01:08:16,713 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:08:16,713 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:08:16,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:08:16,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:08:16,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:08:16,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:08:16,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:08:16,716 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:08:16,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:08:16,716 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:08:16,717 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:08:16,717 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_5a552d65-600b-4808-ae52-451ed4d2b32c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e [2021-11-21 01:08:17,090 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:08:17,117 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:08:17,120 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:08:17,121 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:08:17,124 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:08:17,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2021-11-21 01:08:17,214 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/7b7bc6d23/58cc1e93cffa4e8481e9c841cac06eab/FLAGe9264f1a4 [2021-11-21 01:08:18,017 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:08:18,018 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2021-11-21 01:08:18,046 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/7b7bc6d23/58cc1e93cffa4e8481e9c841cac06eab/FLAGe9264f1a4 [2021-11-21 01:08:18,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/7b7bc6d23/58cc1e93cffa4e8481e9c841cac06eab [2021-11-21 01:08:18,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:08:18,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:08:18,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:08:18,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:08:18,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:08:18,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:08:18" (1/1) ... [2021-11-21 01:08:18,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80b066e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:18, skipping insertion in model container [2021-11-21 01:08:18,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:08:18" (1/1) ... [2021-11-21 01:08:18,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:08:18,222 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:08:18,946 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_5a552d65-600b-4808-ae52-451ed4d2b32c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i[33021,33034] [2021-11-21 01:08:19,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:08:19,242 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 01:08:19,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@45803169 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:19, skipping insertion in model container [2021-11-21 01:08:19,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:08:19,244 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-21 01:08:19,248 INFO L158 Benchmark]: Toolchain (without parser) took 1111.28ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 49.6MB in the beginning and 96.0MB in the end (delta: -46.3MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-21 01:08:19,249 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:08:19,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1107.03ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 49.5MB in the beginning and 96.0MB in the end (delta: -46.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-21 01:08:19,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 90.2MB. Free memory is still 68.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1107.03ms. Allocated memory was 90.2MB in the beginning and 132.1MB in the end (delta: 41.9MB). Free memory was 49.5MB in the beginning and 96.0MB in the end (delta: -46.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 752]: 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_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/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_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/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_5a552d65-600b-4808-ae52-451ed4d2b32c/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 bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:08:21,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:08:21,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:08:22,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:08:22,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:08:22,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:08:22,019 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:08:22,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:08:22,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:08:22,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:08:22,042 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:08:22,044 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:08:22,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:08:22,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:08:22,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:08:22,058 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:08:22,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:08:22,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:08:22,064 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:08:22,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:08:22,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:08:22,078 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:08:22,083 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:08:22,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:08:22,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:08:22,097 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:08:22,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:08:22,101 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:08:22,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:08:22,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:08:22,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:08:22,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:08:22,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:08:22,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:08:22,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:08:22,111 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:08:22,113 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:08:22,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:08:22,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:08:22,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:08:22,135 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:08:22,136 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-21 01:08:22,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:08:22,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:08:22,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:08:22,189 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:08:22,190 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:08:22,190 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:08:22,191 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:08:22,191 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:08:22,191 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:08:22,192 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:08:22,193 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:08:22,193 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:08:22,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 01:08:22,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 01:08:22,196 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:08:22,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:08:22,197 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:08:22,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:08:22,197 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:08:22,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:08:22,198 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 01:08:22,198 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 01:08:22,198 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 01:08:22,199 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:08:22,199 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 01:08:22,199 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:08:22,200 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:08:22,200 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:08:22,200 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:08:22,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:08:22,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:08:22,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:08:22,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:08:22,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:08:22,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:08:22,203 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:08:22,204 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:08:22,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:08:22,204 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:08:22,204 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_5a552d65-600b-4808-ae52-451ed4d2b32c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd259ad1e1e9b7f6e2ebd2858541cc7ac07d30ed5cbee2b9de70c1db1c5b700e [2021-11-21 01:08:22,731 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:08:22,769 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:08:22,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:08:22,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:08:22,776 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:08:22,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2021-11-21 01:08:22,876 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/05768ffc4/7aa4e4d9c3ce4ab0a0d20303ef669739/FLAG9841de7c5 [2021-11-21 01:08:23,753 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:08:23,756 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i [2021-11-21 01:08:23,785 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/05768ffc4/7aa4e4d9c3ce4ab0a0d20303ef669739/FLAG9841de7c5 [2021-11-21 01:08:23,814 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/data/05768ffc4/7aa4e4d9c3ce4ab0a0d20303ef669739 [2021-11-21 01:08:23,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:08:23,821 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:08:23,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:08:23,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:08:23,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:08:23,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:08:23" (1/1) ... [2021-11-21 01:08:23,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@534973ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:23, skipping insertion in model container [2021-11-21 01:08:23,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:08:23" (1/1) ... [2021-11-21 01:08:23,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:08:23,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:08:24,606 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_5a552d65-600b-4808-ae52-451ed4d2b32c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i[33021,33034] [2021-11-21 01:08:24,893 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:08:24,908 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-21 01:08:24,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:08:24,966 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_5a552d65-600b-4808-ae52-451ed4d2b32c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i[33021,33034] [2021-11-21 01:08:25,098 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:08:25,112 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:08:25,170 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_5a552d65-600b-4808-ae52-451ed4d2b32c/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test4-3.i[33021,33034] [2021-11-21 01:08:25,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:08:25,291 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:08:25,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25 WrapperNode [2021-11-21 01:08:25,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:08:25,294 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:08:25,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:08:25,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:08:25,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,381 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,506 INFO L137 Inliner]: procedures = 180, calls = 448, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1473 [2021-11-21 01:08:25,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:08:25,508 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:08:25,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:08:25,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:08:25,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:08:25,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:08:25,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:08:25,715 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:08:25,716 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (1/1) ... [2021-11-21 01:08:25,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:08:25,739 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:08:25,754 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:08:25,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:08:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-21 01:08:25,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 01:08:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:08:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:08:25,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:08:25,814 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:08:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:08:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:08:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:08:25,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:08:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:08:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:08:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 01:08:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:08:25,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:08:25,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:08:26,201 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:08:26,217 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:08:26,222 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-21 01:08:34,463 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:08:34,486 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:08:34,486 INFO L301 CfgBuilder]: Removed 77 assume(true) statements. [2021-11-21 01:08:34,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:08:34 BoogieIcfgContainer [2021-11-21 01:08:34,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:08:34,494 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:08:34,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:08:34,498 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:08:34,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:08:23" (1/3) ... [2021-11-21 01:08:34,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d284e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:08:34, skipping insertion in model container [2021-11-21 01:08:34,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:08:25" (2/3) ... [2021-11-21 01:08:34,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d284e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:08:34, skipping insertion in model container [2021-11-21 01:08:34,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:08:34" (3/3) ... [2021-11-21 01:08:34,503 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test4-3.i [2021-11-21 01:08:34,509 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:08:34,510 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 851 error locations. [2021-11-21 01:08:34,568 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:08:34,576 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 01:08:34,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 851 error locations. [2021-11-21 01:08:34,668 INFO L276 IsEmpty]: Start isEmpty. Operand has 1651 states, 787 states have (on average 2.283354510800508) internal successors, (1797), 1642 states have internal predecessors, (1797), 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 01:08:34,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:08:34,676 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:34,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:08:34,677 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:34,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:34,685 INFO L85 PathProgramCache]: Analyzing trace with hash 37287509, now seen corresponding path program 1 times [2021-11-21 01:08:34,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:34,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1555151855] [2021-11-21 01:08:34,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:34,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:34,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:34,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:34,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:08:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:34,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:08:34,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:35,001 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 01:08:35,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:35,015 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 01:08:35,016 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:35,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1555151855] [2021-11-21 01:08:35,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1555151855] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:35,018 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:35,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:08:35,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756717719] [2021-11-21 01:08:35,021 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:35,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:08:35,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:35,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:08:35,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:08:35,106 INFO L87 Difference]: Start difference. First operand has 1651 states, 787 states have (on average 2.283354510800508) internal successors, (1797), 1642 states have internal predecessors, (1797), 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) 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 01:08:35,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:08:35,333 INFO L93 Difference]: Finished difference Result 1633 states and 1726 transitions. [2021-11-21 01:08:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:08:35,341 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 01:08:35,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:08:35,389 INFO L225 Difference]: With dead ends: 1633 [2021-11-21 01:08:35,390 INFO L226 Difference]: Without dead ends: 1631 [2021-11-21 01:08:35,396 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 01:08:35,404 INFO L933 BasicCegarLoop]: 1726 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, 1726 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 01:08:35,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1726 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:08:35,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2021-11-21 01:08:35,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1631. [2021-11-21 01:08:35,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1631 states, 778 states have (on average 2.1748071979434447) internal successors, (1692), 1622 states have internal predecessors, (1692), 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 01:08:35,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1631 states to 1631 states and 1724 transitions. [2021-11-21 01:08:35,583 INFO L78 Accepts]: Start accepts. Automaton has 1631 states and 1724 transitions. Word has length 5 [2021-11-21 01:08:35,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:08:35,584 INFO L470 AbstractCegarLoop]: Abstraction has 1631 states and 1724 transitions. [2021-11-21 01:08:35,584 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 01:08:35,584 INFO L276 IsEmpty]: Start isEmpty. Operand 1631 states and 1724 transitions. [2021-11-21 01:08:35,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:08:35,585 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:35,586 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:08:35,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:08:35,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:08:35,802 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:35,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:35,808 INFO L85 PathProgramCache]: Analyzing trace with hash 37287571, now seen corresponding path program 1 times [2021-11-21 01:08:35,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:35,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1455108209] [2021-11-21 01:08:35,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:35,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:35,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:35,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:35,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:08:36,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:36,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:08:36,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:36,116 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 01:08:36,144 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 01:08:36,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:36,181 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 01:08:36,183 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:36,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1455108209] [2021-11-21 01:08:36,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1455108209] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:36,190 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:36,191 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:08:36,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066330466] [2021-11-21 01:08:36,197 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:36,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:08:36,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:36,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:08:36,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:08:36,229 INFO L87 Difference]: Start difference. First operand 1631 states and 1724 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 01:08:39,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:08:39,874 INFO L93 Difference]: Finished difference Result 1668 states and 1774 transitions. [2021-11-21 01:08:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:08:39,876 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 01:08:39,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:08:39,888 INFO L225 Difference]: With dead ends: 1668 [2021-11-21 01:08:39,889 INFO L226 Difference]: Without dead ends: 1668 [2021-11-21 01:08:39,889 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 01:08:39,895 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 1159 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1175 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:08:39,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1175 Valid, 1291 Invalid, 1032 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 01:08:39,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1668 states. [2021-11-21 01:08:39,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1668 to 1614. [2021-11-21 01:08:39,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 854 states have (on average 2.030444964871194) internal successors, (1734), 1605 states have internal predecessors, (1734), 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 01:08:39,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 1766 transitions. [2021-11-21 01:08:39,955 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 1766 transitions. Word has length 5 [2021-11-21 01:08:39,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:08:39,956 INFO L470 AbstractCegarLoop]: Abstraction has 1614 states and 1766 transitions. [2021-11-21 01:08:39,956 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 01:08:39,957 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 1766 transitions. [2021-11-21 01:08:39,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:08:39,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:39,958 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:08:39,980 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:08:40,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:08:40,171 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:40,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:40,172 INFO L85 PathProgramCache]: Analyzing trace with hash 37287572, now seen corresponding path program 1 times [2021-11-21 01:08:40,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:40,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864488643] [2021-11-21 01:08:40,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:40,173 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:40,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:40,178 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:40,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 01:08:40,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:40,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:08:40,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:40,356 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 01:08:40,394 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 01:08:40,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:40,489 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 01:08:40,490 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:40,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864488643] [2021-11-21 01:08:40,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864488643] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:40,491 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:40,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 01:08:40,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354083728] [2021-11-21 01:08:40,491 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:40,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:08:40,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:40,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:08:40,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:08:40,493 INFO L87 Difference]: Start difference. First operand 1614 states and 1766 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 01:08:48,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:08:48,164 INFO L93 Difference]: Finished difference Result 1968 states and 2141 transitions. [2021-11-21 01:08:48,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:08:48,166 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 01:08:48,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:08:48,180 INFO L225 Difference]: With dead ends: 1968 [2021-11-21 01:08:48,181 INFO L226 Difference]: Without dead ends: 1968 [2021-11-21 01:08:48,181 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 01:08:48,183 INFO L933 BasicCegarLoop]: 1327 mSDtfsCounter, 1119 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 1118 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:08:48,184 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 2002 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1118 Invalid, 0 Unknown, 0 Unchecked, 7.6s Time] [2021-11-21 01:08:48,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1968 states. [2021-11-21 01:08:48,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1968 to 1770. [2021-11-21 01:08:48,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1020 states have (on average 2.0) internal successors, (2040), 1761 states have internal predecessors, (2040), 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 01:08:48,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2072 transitions. [2021-11-21 01:08:48,245 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2072 transitions. Word has length 5 [2021-11-21 01:08:48,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:08:48,245 INFO L470 AbstractCegarLoop]: Abstraction has 1770 states and 2072 transitions. [2021-11-21 01:08:48,246 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 01:08:48,246 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2072 transitions. [2021-11-21 01:08:48,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 01:08:48,247 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:48,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-21 01:08:48,257 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-21 01:08:48,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:08:48,456 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:48,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1157601995, now seen corresponding path program 1 times [2021-11-21 01:08:48,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:48,458 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2067262814] [2021-11-21 01:08:48,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:48,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:48,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:48,463 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:48,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 01:08:48,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:48,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:08:48,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:48,624 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 01:08:48,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:48,651 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 01:08:48,651 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:48,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2067262814] [2021-11-21 01:08:48,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2067262814] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:48,652 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:48,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 01:08:48,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793705035] [2021-11-21 01:08:48,653 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:48,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:08:48,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:48,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:08:48,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:08:48,655 INFO L87 Difference]: Start difference. First operand 1770 states and 2072 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 01:08:48,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:08:48,885 INFO L93 Difference]: Finished difference Result 3115 states and 3680 transitions. [2021-11-21 01:08:48,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:08:48,886 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 01:08:48,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:08:48,910 INFO L225 Difference]: With dead ends: 3115 [2021-11-21 01:08:48,911 INFO L226 Difference]: Without dead ends: 3115 [2021-11-21 01:08:48,916 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 01:08:48,920 INFO L933 BasicCegarLoop]: 2068 mSDtfsCounter, 2984 mSDsluCounter, 1609 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2996 SdHoareTripleChecker+Valid, 3677 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:08:48,923 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2996 Valid, 3677 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:08:48,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2021-11-21 01:08:49,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2586. [2021-11-21 01:08:49,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 1836 states have (on average 1.9803921568627452) internal successors, (3636), 2571 states have internal predecessors, (3636), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 01:08:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3680 transitions. [2021-11-21 01:08:49,036 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3680 transitions. Word has length 6 [2021-11-21 01:08:49,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:08:49,040 INFO L470 AbstractCegarLoop]: Abstraction has 2586 states and 3680 transitions. [2021-11-21 01:08:49,040 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 01:08:49,040 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3680 transitions. [2021-11-21 01:08:49,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:08:49,041 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:49,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:08:49,060 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:08:49,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:08:49,261 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:49,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:49,261 INFO L85 PathProgramCache]: Analyzing trace with hash 334651453, now seen corresponding path program 1 times [2021-11-21 01:08:49,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:49,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669508592] [2021-11-21 01:08:49,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:49,263 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:49,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:49,264 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:49,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 01:08:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:49,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 01:08:49,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:49,537 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 01:08:49,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:49,583 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 01:08:49,583 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:49,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669508592] [2021-11-21 01:08:49,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669508592] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:49,585 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:49,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 01:08:49,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251947672] [2021-11-21 01:08:49,585 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:49,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:08:49,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:49,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:08:49,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:08:49,587 INFO L87 Difference]: Start difference. First operand 2586 states and 3680 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 01:08:49,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:08:49,699 INFO L93 Difference]: Finished difference Result 2526 states and 3594 transitions. [2021-11-21 01:08:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:08:49,699 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 01:08:49,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:08:49,720 INFO L225 Difference]: With dead ends: 2526 [2021-11-21 01:08:49,720 INFO L226 Difference]: Without dead ends: 2526 [2021-11-21 01:08:49,721 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 01:08:49,722 INFO L933 BasicCegarLoop]: 1573 mSDtfsCounter, 3066 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3082 SdHoareTripleChecker+Valid, 1606 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:08:49,722 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3082 Valid, 1606 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:08:49,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2526 states. [2021-11-21 01:08:49,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2526 to 2526. [2021-11-21 01:08:49,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2526 states, 1800 states have (on average 1.9722222222222223) internal successors, (3550), 2511 states have internal predecessors, (3550), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 01:08:49,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2526 states to 2526 states and 3594 transitions. [2021-11-21 01:08:49,809 INFO L78 Accepts]: Start accepts. Automaton has 2526 states and 3594 transitions. Word has length 11 [2021-11-21 01:08:49,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:08:49,809 INFO L470 AbstractCegarLoop]: Abstraction has 2526 states and 3594 transitions. [2021-11-21 01:08:49,810 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 01:08:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 2526 states and 3594 transitions. [2021-11-21 01:08:49,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:08:49,810 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:49,811 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:08:49,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:08:50,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:08:50,025 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:50,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:50,026 INFO L85 PathProgramCache]: Analyzing trace with hash -522505033, now seen corresponding path program 1 times [2021-11-21 01:08:50,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:50,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [103444165] [2021-11-21 01:08:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:50,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:50,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:50,029 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:50,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 01:08:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:50,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:08:50,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:50,323 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 01:08:50,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:50,367 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 01:08:50,367 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:50,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [103444165] [2021-11-21 01:08:50,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [103444165] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:50,368 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:50,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 01:08:50,368 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991492785] [2021-11-21 01:08:50,368 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:50,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:08:50,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:50,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:08:50,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:08:50,370 INFO L87 Difference]: Start difference. First operand 2526 states and 3594 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 01:08:50,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:08:50,563 INFO L93 Difference]: Finished difference Result 2498 states and 3538 transitions. [2021-11-21 01:08:50,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:08:50,564 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 01:08:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:08:50,583 INFO L225 Difference]: With dead ends: 2498 [2021-11-21 01:08:50,583 INFO L226 Difference]: Without dead ends: 2498 [2021-11-21 01:08:50,583 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 01:08:50,584 INFO L933 BasicCegarLoop]: 1528 mSDtfsCounter, 2998 mSDsluCounter, 1554 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3014 SdHoareTripleChecker+Valid, 3082 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:08:50,585 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3014 Valid, 3082 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:08:50,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2498 states. [2021-11-21 01:08:50,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2498 to 2496. [2021-11-21 01:08:50,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 1784 states have (on average 1.9573991031390134) internal successors, (3492), 2481 states have internal predecessors, (3492), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 01:08:50,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 3536 transitions. [2021-11-21 01:08:50,671 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 3536 transitions. Word has length 13 [2021-11-21 01:08:50,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:08:50,671 INFO L470 AbstractCegarLoop]: Abstraction has 2496 states and 3536 transitions. [2021-11-21 01:08:50,672 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 01:08:50,672 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 3536 transitions. [2021-11-21 01:08:50,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:08:50,673 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:50,673 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 01:08:50,692 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:08:50,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:08:50,887 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:50,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:50,887 INFO L85 PathProgramCache]: Analyzing trace with hash -22216187, now seen corresponding path program 1 times [2021-11-21 01:08:50,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:50,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092072141] [2021-11-21 01:08:50,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:50,888 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:50,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:50,892 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:50,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 01:08:51,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:51,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:08:51,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:51,139 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 01:08:51,255 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 01:08:51,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:51,374 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 01:08:51,374 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:51,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092072141] [2021-11-21 01:08:51,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1092072141] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:51,375 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:51,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 01:08:51,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791810794] [2021-11-21 01:08:51,375 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:51,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:08:51,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:51,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:08:51,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:08:51,377 INFO L87 Difference]: Start difference. First operand 2496 states and 3536 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 01:08:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:08:57,465 INFO L93 Difference]: Finished difference Result 3497 states and 4739 transitions. [2021-11-21 01:08:57,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:08:57,465 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 01:08:57,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:08:57,491 INFO L225 Difference]: With dead ends: 3497 [2021-11-21 01:08:57,492 INFO L226 Difference]: Without dead ends: 3497 [2021-11-21 01:08:57,492 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 01:08:57,493 INFO L933 BasicCegarLoop]: 958 mSDtfsCounter, 2761 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 1772 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2774 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 1833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 1772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:08:57,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2774 Valid, 1876 Invalid, 1833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 1772 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2021-11-21 01:08:57,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3497 states. [2021-11-21 01:08:57,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3497 to 2492. [2021-11-21 01:08:57,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 1784 states have (on average 1.952914798206278) internal successors, (3484), 2477 states have internal predecessors, (3484), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 01:08:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 3528 transitions. [2021-11-21 01:08:57,603 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 3528 transitions. Word has length 27 [2021-11-21 01:08:57,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:08:57,604 INFO L470 AbstractCegarLoop]: Abstraction has 2492 states and 3528 transitions. [2021-11-21 01:08:57,604 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 01:08:57,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 3528 transitions. [2021-11-21 01:08:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:08:57,606 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:08:57,606 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 01:08:57,627 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:08:57,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:08:57,820 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:08:57,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:08:57,820 INFO L85 PathProgramCache]: Analyzing trace with hash -22216186, now seen corresponding path program 1 times [2021-11-21 01:08:57,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:08:57,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [386644511] [2021-11-21 01:08:57,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:08:57,821 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:08:57,821 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:08:57,823 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:08:57,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 01:08:58,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:08:58,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:08:58,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:08:58,068 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 01:08:58,391 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 01:08:58,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:08:58,944 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 01:08:58,944 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:08:58,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [386644511] [2021-11-21 01:08:58,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [386644511] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:08:58,945 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:08:58,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 01:08:58,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625152587] [2021-11-21 01:08:58,945 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:08:58,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:08:58,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:08:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:08:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:08:58,946 INFO L87 Difference]: Start difference. First operand 2492 states and 3528 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 01:09:15,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:15,300 INFO L93 Difference]: Finished difference Result 3143 states and 4113 transitions. [2021-11-21 01:09:15,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:09:15,301 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 01:09:15,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:15,322 INFO L225 Difference]: With dead ends: 3143 [2021-11-21 01:09:15,322 INFO L226 Difference]: Without dead ends: 3143 [2021-11-21 01:09:15,322 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:09:15,323 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 1469 mSDsluCounter, 2645 mSDsCounter, 0 mSdLazyCounter, 3485 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 3748 SdHoareTripleChecker+Invalid, 3523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 3485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:15,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1479 Valid, 3748 Invalid, 3523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 3485 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2021-11-21 01:09:15,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3143 states. [2021-11-21 01:09:15,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3143 to 2488. [2021-11-21 01:09:15,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2488 states, 1784 states have (on average 1.9484304932735426) internal successors, (3476), 2473 states have internal predecessors, (3476), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 01:09:15,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2488 states to 2488 states and 3520 transitions. [2021-11-21 01:09:15,404 INFO L78 Accepts]: Start accepts. Automaton has 2488 states and 3520 transitions. Word has length 27 [2021-11-21 01:09:15,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:15,404 INFO L470 AbstractCegarLoop]: Abstraction has 2488 states and 3520 transitions. [2021-11-21 01:09:15,405 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 01:09:15,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2488 states and 3520 transitions. [2021-11-21 01:09:15,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-21 01:09:15,406 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:15,407 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 01:09:15,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-21 01:09:15,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:09:15,622 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:09:15,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:15,622 INFO L85 PathProgramCache]: Analyzing trace with hash 810363537, now seen corresponding path program 1 times [2021-11-21 01:09:15,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:09:15,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1444650607] [2021-11-21 01:09:15,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:15,623 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:09:15,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:09:15,624 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:09:15,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 01:09:15,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:15,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:09:15,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:16,045 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 01:09:16,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:16,200 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 01:09:16,200 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:09:16,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1444650607] [2021-11-21 01:09:16,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1444650607] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:16,201 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:16,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 01:09:16,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255204750] [2021-11-21 01:09:16,202 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:16,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:09:16,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:09:16,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:09:16,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:09:16,203 INFO L87 Difference]: Start difference. First operand 2488 states and 3520 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 01:09:16,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:16,296 INFO L93 Difference]: Finished difference Result 2476 states and 3500 transitions. [2021-11-21 01:09:16,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:09:16,297 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 01:09:16,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:16,319 INFO L225 Difference]: With dead ends: 2476 [2021-11-21 01:09:16,319 INFO L226 Difference]: Without dead ends: 2476 [2021-11-21 01:09:16,320 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 01:09:16,323 INFO L933 BasicCegarLoop]: 1522 mSDtfsCounter, 1480 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 3060 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:16,323 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1496 Valid, 3060 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:09:16,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2476 states. [2021-11-21 01:09:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2476 to 2476. [2021-11-21 01:09:16,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2476 states, 1772 states have (on average 1.9503386004514673) internal successors, (3456), 2461 states have internal predecessors, (3456), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 01:09:16,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3500 transitions. [2021-11-21 01:09:16,389 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3500 transitions. Word has length 42 [2021-11-21 01:09:16,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:16,391 INFO L470 AbstractCegarLoop]: Abstraction has 2476 states and 3500 transitions. [2021-11-21 01:09:16,391 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 01:09:16,392 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3500 transitions. [2021-11-21 01:09:16,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-21 01:09:16,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:16,398 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 01:09:16,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-21 01:09:16,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:09:16,617 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr108REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:09:16,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:16,618 INFO L85 PathProgramCache]: Analyzing trace with hash 2087041861, now seen corresponding path program 1 times [2021-11-21 01:09:16,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:09:16,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1179190051] [2021-11-21 01:09:16,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:16,619 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:09:16,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:09:16,620 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:09:16,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-21 01:09:16,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:16,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:09:16,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:17,299 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 01:09:17,299 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:17,739 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 01:09:17,739 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:09:17,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1179190051] [2021-11-21 01:09:17,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1179190051] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:17,739 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:17,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 01:09:17,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480903948] [2021-11-21 01:09:17,740 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:17,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:09:17,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:09:17,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:09:17,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:17,741 INFO L87 Difference]: Start difference. First operand 2476 states and 3500 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 01:09:18,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:18,030 INFO L93 Difference]: Finished difference Result 2665 states and 3535 transitions. [2021-11-21 01:09:18,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:09:18,031 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 01:09:18,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:18,049 INFO L225 Difference]: With dead ends: 2665 [2021-11-21 01:09:18,049 INFO L226 Difference]: Without dead ends: 2665 [2021-11-21 01:09:18,050 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 01:09:18,050 INFO L933 BasicCegarLoop]: 1600 mSDtfsCounter, 455 mSDsluCounter, 1396 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 457 SdHoareTripleChecker+Valid, 2996 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:18,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [457 Valid, 2996 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:09:18,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2665 states. [2021-11-21 01:09:18,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2665 to 2292. [2021-11-21 01:09:18,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2292 states, 1588 states have (on average 1.9527707808564232) internal successors, (3101), 2277 states have internal predecessors, (3101), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 01:09:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2292 states to 2292 states and 3145 transitions. [2021-11-21 01:09:18,109 INFO L78 Accepts]: Start accepts. Automaton has 2292 states and 3145 transitions. Word has length 50 [2021-11-21 01:09:18,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:18,109 INFO L470 AbstractCegarLoop]: Abstraction has 2292 states and 3145 transitions. [2021-11-21 01:09:18,110 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 01:09:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 2292 states and 3145 transitions. [2021-11-21 01:09:18,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-11-21 01:09:18,111 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:18,111 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 01:09:18,128 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-21 01:09:18,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:09:18,324 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:09:18,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:18,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1009990608, now seen corresponding path program 1 times [2021-11-21 01:09:18,325 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:09:18,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511961036] [2021-11-21 01:09:18,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:18,327 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:09:18,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:09:18,328 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:09:18,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-21 01:09:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:18,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:09:18,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:18,751 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 01:09:18,759 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 01:09:19,546 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 01:09:19,546 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 25 treesize of output 27 [2021-11-21 01:09:19,555 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:09:19,555 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 24 treesize of output 20 [2021-11-21 01:09:19,596 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 01:09:19,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:24,701 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 01:09:24,702 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:09:24,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511961036] [2021-11-21 01:09:24,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511961036] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:24,702 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:24,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 01:09:24,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153572663] [2021-11-21 01:09:24,703 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:24,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:09:24,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:09:24,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:09:24,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=16, Unknown=1, NotChecked=0, Total=30 [2021-11-21 01:09:24,705 INFO L87 Difference]: Start difference. First operand 2292 states and 3145 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 01:09:33,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:33,727 INFO L93 Difference]: Finished difference Result 2998 states and 3785 transitions. [2021-11-21 01:09:33,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:09:33,737 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 01:09:33,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:33,751 INFO L225 Difference]: With dead ends: 2998 [2021-11-21 01:09:33,751 INFO L226 Difference]: Without dead ends: 2998 [2021-11-21 01:09:33,751 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 01:09:33,752 INFO L933 BasicCegarLoop]: 1257 mSDtfsCounter, 2596 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 1797 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2603 SdHoareTripleChecker+Valid, 2971 SdHoareTripleChecker+Invalid, 4436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2541 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:33,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2603 Valid, 2971 Invalid, 4436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1797 Invalid, 0 Unknown, 2541 Unchecked, 8.9s Time] [2021-11-21 01:09:33,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2998 states. [2021-11-21 01:09:33,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2998 to 2387. [2021-11-21 01:09:33,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 1715 states have (on average 1.9067055393586005) internal successors, (3270), 2369 states have internal predecessors, (3270), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 01:09:33,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 3320 transitions. [2021-11-21 01:09:33,818 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 3320 transitions. Word has length 53 [2021-11-21 01:09:33,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:33,819 INFO L470 AbstractCegarLoop]: Abstraction has 2387 states and 3320 transitions. [2021-11-21 01:09:33,819 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 01:09:33,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 3320 transitions. [2021-11-21 01:09:33,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-11-21 01:09:33,820 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:33,820 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 01:09:33,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-21 01:09:34,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:09:34,040 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr63REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:09:34,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash -61627503, now seen corresponding path program 1 times [2021-11-21 01:09:34,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:09:34,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864049906] [2021-11-21 01:09:34,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:34,042 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:09:34,042 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:09:34,044 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:09:34,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-21 01:09:34,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:34,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:09:34,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:34,605 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 01:09:34,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:34,684 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 01:09:35,056 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 01:09:35,056 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:09:35,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864049906] [2021-11-21 01:09:35,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [864049906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:35,056 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:35,057 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 01:09:35,057 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268691165] [2021-11-21 01:09:35,057 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:35,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:09:35,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:09:35,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:09:35,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:09:35,059 INFO L87 Difference]: Start difference. First operand 2387 states and 3320 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 01:09:39,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:39,462 INFO L93 Difference]: Finished difference Result 2385 states and 3316 transitions. [2021-11-21 01:09:39,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:09:39,462 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 01:09:39,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:39,472 INFO L225 Difference]: With dead ends: 2385 [2021-11-21 01:09:39,472 INFO L226 Difference]: Without dead ends: 2385 [2021-11-21 01:09:39,472 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 01:09:39,473 INFO L933 BasicCegarLoop]: 961 mSDtfsCounter, 1950 mSDsluCounter, 1165 mSDsCounter, 0 mSdLazyCounter, 833 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1956 SdHoareTripleChecker+Valid, 2126 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 833 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:39,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1956 Valid, 2126 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 833 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-11-21 01:09:39,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2385 states. [2021-11-21 01:09:39,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2385 to 2385. [2021-11-21 01:09:39,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 1715 states have (on average 1.9043731778425657) internal successors, (3266), 2367 states have internal predecessors, (3266), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 01:09:39,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3316 transitions. [2021-11-21 01:09:39,546 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3316 transitions. Word has length 55 [2021-11-21 01:09:39,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:39,546 INFO L470 AbstractCegarLoop]: Abstraction has 2385 states and 3316 transitions. [2021-11-21 01:09:39,547 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 01:09:39,547 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3316 transitions. [2021-11-21 01:09:39,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-21 01:09:39,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:39,548 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 01:09:39,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-21 01:09:39,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:09:39,762 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:09:39,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:39,763 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678057, now seen corresponding path program 1 times [2021-11-21 01:09:39,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:09:39,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189431281] [2021-11-21 01:09:39,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:39,764 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:09:39,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:09:39,766 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:09:39,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-21 01:09:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:40,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:09:40,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:40,215 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 01:09:40,235 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 01:09:40,286 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 01:09:40,305 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 01:09:40,305 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:40,458 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 01:09:40,459 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:09:40,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189431281] [2021-11-21 01:09:40,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1189431281] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:40,459 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:40,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 01:09:40,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122129469] [2021-11-21 01:09:40,460 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:40,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:09:40,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:09:40,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:09:40,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:09:40,461 INFO L87 Difference]: Start difference. First operand 2385 states and 3316 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 01:09:46,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:46,223 INFO L93 Difference]: Finished difference Result 2384 states and 3314 transitions. [2021-11-21 01:09:46,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:09:46,225 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 01:09:46,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:46,231 INFO L225 Difference]: With dead ends: 2384 [2021-11-21 01:09:46,232 INFO L226 Difference]: Without dead ends: 2384 [2021-11-21 01:09:46,232 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 01:09:46,233 INFO L933 BasicCegarLoop]: 1492 mSDtfsCounter, 4 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 2193 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 3780 SdHoareTripleChecker+Invalid, 2194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:46,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 3780 Invalid, 2194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2193 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-11-21 01:09:46,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2384 states. [2021-11-21 01:09:46,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2384 to 2384. [2021-11-21 01:09:46,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2384 states, 1715 states have (on average 1.9032069970845482) internal successors, (3264), 2366 states have internal predecessors, (3264), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 01:09:46,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2384 states to 2384 states and 3314 transitions. [2021-11-21 01:09:46,291 INFO L78 Accepts]: Start accepts. Automaton has 2384 states and 3314 transitions. Word has length 58 [2021-11-21 01:09:46,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:46,292 INFO L470 AbstractCegarLoop]: Abstraction has 2384 states and 3314 transitions. [2021-11-21 01:09:46,292 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 01:09:46,292 INFO L276 IsEmpty]: Start isEmpty. Operand 2384 states and 3314 transitions. [2021-11-21 01:09:46,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-21 01:09:46,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:46,294 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 01:09:46,320 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-21 01:09:46,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:09:46,520 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:09:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:46,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1993678056, now seen corresponding path program 1 times [2021-11-21 01:09:46,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:09:46,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1358449810] [2021-11-21 01:09:46,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:46,521 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:09:46,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:09:46,522 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:09:46,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-21 01:09:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:46,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:09:46,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:46,907 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 01:09:46,934 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 01:09:46,947 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 01:09:47,033 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 01:09:47,037 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 01:09:47,062 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 01:09:47,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:47,445 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 01:09:47,445 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:09:47,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1358449810] [2021-11-21 01:09:47,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1358449810] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:47,446 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:47,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-21 01:09:47,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192569400] [2021-11-21 01:09:47,446 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:47,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:09:47,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:09:47,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:09:47,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:09:47,447 INFO L87 Difference]: Start difference. First operand 2384 states and 3314 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 01:10:02,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:10:02,453 INFO L93 Difference]: Finished difference Result 2383 states and 3312 transitions. [2021-11-21 01:10:02,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:10:02,454 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 01:10:02,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:10:02,459 INFO L225 Difference]: With dead ends: 2383 [2021-11-21 01:10:02,459 INFO L226 Difference]: Without dead ends: 2383 [2021-11-21 01:10:02,459 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 01:10:02,460 INFO L933 BasicCegarLoop]: 1492 mSDtfsCounter, 3 mSDsluCounter, 2994 mSDsCounter, 0 mSdLazyCounter, 2978 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4486 SdHoareTripleChecker+Invalid, 2980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2978 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:10:02,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 4486 Invalid, 2980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2978 Invalid, 0 Unknown, 0 Unchecked, 14.9s Time] [2021-11-21 01:10:02,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2383 states. [2021-11-21 01:10:02,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2383 to 2383. [2021-11-21 01:10:02,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2383 states, 1713 states have (on average 1.9042615294804437) internal successors, (3262), 2365 states have internal predecessors, (3262), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 16 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 01:10:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2383 states to 2383 states and 3312 transitions. [2021-11-21 01:10:02,508 INFO L78 Accepts]: Start accepts. Automaton has 2383 states and 3312 transitions. Word has length 58 [2021-11-21 01:10:02,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:10:02,508 INFO L470 AbstractCegarLoop]: Abstraction has 2383 states and 3312 transitions. [2021-11-21 01:10:02,509 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 01:10:02,509 INFO L276 IsEmpty]: Start isEmpty. Operand 2383 states and 3312 transitions. [2021-11-21 01:10:02,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:10:02,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:10:02,510 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 01:10:02,543 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-21 01:10:02,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:10:02,727 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:10:02,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:10:02,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1222950270, now seen corresponding path program 1 times [2021-11-21 01:10:02,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:10:02,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [962559173] [2021-11-21 01:10:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:10:02,728 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:10:02,728 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:10:02,729 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:10:02,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-21 01:10:02,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:02,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:10:02,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:03,109 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 01:10:03,109 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:10:03,271 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 01:10:03,271 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:10:03,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [962559173] [2021-11-21 01:10:03,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [962559173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:10:03,272 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:10:03,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 01:10:03,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227192985] [2021-11-21 01:10:03,273 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:10:03,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:10:03,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:10:03,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:10:03,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:10:03,274 INFO L87 Difference]: Start difference. First operand 2383 states and 3312 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 01:10:03,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:10:03,496 INFO L93 Difference]: Finished difference Result 2393 states and 3329 transitions. [2021-11-21 01:10:03,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:10:03,497 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 01:10:03,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:10:03,504 INFO L225 Difference]: With dead ends: 2393 [2021-11-21 01:10:03,504 INFO L226 Difference]: Without dead ends: 2393 [2021-11-21 01:10:03,505 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 01:10:03,505 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 7 mSDsluCounter, 5934 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7424 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:10:03,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 7424 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:10:03,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2021-11-21 01:10:03,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393. [2021-11-21 01:10:03,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2393 states, 1721 states have (on average 1.9023823358512493) internal successors, (3274), 2374 states have internal predecessors, (3274), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-21 01:10:03,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 3329 transitions. [2021-11-21 01:10:03,560 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 3329 transitions. Word has length 66 [2021-11-21 01:10:03,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:10:03,561 INFO L470 AbstractCegarLoop]: Abstraction has 2393 states and 3329 transitions. [2021-11-21 01:10:03,561 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 01:10:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 3329 transitions. [2021-11-21 01:10:03,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-21 01:10:03,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:10:03,563 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 01:10:03,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-21 01:10:03,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:10:03,777 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:10:03,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:10:03,778 INFO L85 PathProgramCache]: Analyzing trace with hash -90758754, now seen corresponding path program 1 times [2021-11-21 01:10:03,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:10:03,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888232643] [2021-11-21 01:10:03,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:10:03,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:10:03,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:10:03,780 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:10:03,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-21 01:10:04,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:04,097 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:10:04,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:04,242 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 01:10:04,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:10:04,494 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 01:10:04,494 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:10:04,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888232643] [2021-11-21 01:10:04,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888232643] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:10:04,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [806676946] [2021-11-21 01:10:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:10:04,495 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 01:10:04,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 01:10:04,496 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 01:10:04,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-21 01:10:04,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:04,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:10:04,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:04,951 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 01:10:04,952 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:10:05,151 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 01:10:05,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [806676946] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:10:05,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223206494] [2021-11-21 01:10:05,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:10:05,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:10:05,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:10:05,153 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:10:05,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-21 01:10:05,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:10:05,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 01:10:05,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:05,568 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 01:10:05,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:10:05,864 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 01:10:05,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223206494] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:10:05,865 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 01:10:05,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-21 01:10:05,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56241599] [2021-11-21 01:10:05,866 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 01:10:05,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 01:10:05,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:10:05,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 01:10:05,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:10:05,868 INFO L87 Difference]: Start difference. First operand 2393 states and 3329 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 01:10:06,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:10:06,771 INFO L93 Difference]: Finished difference Result 2407 states and 3350 transitions. [2021-11-21 01:10:06,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-21 01:10:06,772 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 01:10:06,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:10:06,800 INFO L225 Difference]: With dead ends: 2407 [2021-11-21 01:10:06,800 INFO L226 Difference]: Without dead ends: 2401 [2021-11-21 01:10:06,801 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 01:10:06,801 INFO L933 BasicCegarLoop]: 1490 mSDtfsCounter, 46 mSDsluCounter, 5941 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 7431 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:10:06,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 7431 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:10:06,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2021-11-21 01:10:06,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 2399. [2021-11-21 01:10:06,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2399 states, 1727 states have (on average 1.8998262883613202) internal successors, (3281), 2380 states have internal predecessors, (3281), 25 states have call successors, (25), 3 states have call predecessors, (25), 4 states have return successors, (30), 16 states have call predecessors, (30), 25 states have call successors, (30) [2021-11-21 01:10:06,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 3336 transitions. [2021-11-21 01:10:06,862 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 3336 transitions. Word has length 68 [2021-11-21 01:10:06,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:10:06,862 INFO L470 AbstractCegarLoop]: Abstraction has 2399 states and 3336 transitions. [2021-11-21 01:10:06,863 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 01:10:06,863 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 3336 transitions. [2021-11-21 01:10:06,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-21 01:10:06,866 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:10:06,867 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 01:10:06,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-21 01:10:07,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-21 01:10:07,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-11-21 01:10:07,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt [2021-11-21 01:10:07,483 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 847 more)] === [2021-11-21 01:10:07,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:10:07,483 INFO L85 PathProgramCache]: Analyzing trace with hash 350507486, now seen corresponding path program 2 times [2021-11-21 01:10:07,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:10:07,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428616710] [2021-11-21 01:10:07,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 01:10:07,484 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:10:07,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:10:07,485 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:10:07,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-21 01:10:07,838 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 01:10:07,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:10:07,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:10:07,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:08,133 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 01:10:08,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:10:08,890 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 01:10:08,891 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:10:08,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428616710] [2021-11-21 01:10:08,891 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [428616710] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:10:08,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [526818423] [2021-11-21 01:10:08,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 01:10:08,892 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 01:10:08,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 01:10:08,895 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 01:10:08,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-21 01:10:09,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 01:10:09,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:10:09,884 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-21 01:10:09,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:10,066 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 01:10:10,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:10:10,489 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 01:10:10,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [526818423] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:10:10,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540206518] [2021-11-21 01:10:10,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 01:10:10,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:10:10,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:10:10,491 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:10:10,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a552d65-600b-4808-ae52-451ed4d2b32c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-11-21 01:10:27,220 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 01:10:27,220 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:10:27,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 01:10:27,243 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:10:27,250 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 01:10:27,497 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:10:27,497 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 15 treesize of output 15 [2021-11-21 01:10:27,566 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 01:12:22,490 WARN L227 SmtUtils]: Spent 30.84s 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 01:12:22,491 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-21 01:12:22,491 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 01:12:23,078 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-21 01:12:23,078 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 01:12:23,200 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 01:12:23,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:12:24,970 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 01:12:24,971 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 01:18:05,494 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 01:18:05,494 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 112 treesize of output 111 [2021-11-21 01:18:08,607 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr361_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_114| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr361| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$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~loopctr361|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_112| |#Ultimate.C_memset_#ptr.offset|) (_ 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 01:18:30,293 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 01:18:30,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540206518] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:18:30,293 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 01:18:30,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-21 01:18:30,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915752893] [2021-11-21 01:18:30,294 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 01:18:30,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-21 01:18:30,295 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:18:30,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-21 01:18:30,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=1529, Unknown=202, NotChecked=84, Total=1980 [2021-11-21 01:18:30,297 INFO L87 Difference]: Start difference. First operand 2399 states and 3336 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 01:18:36,716 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|) (forall ((|v_#Ultimate.C_memset_#t~loopctr361_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_120| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_114| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr361| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$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~loopctr361|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_120| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_118| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_116| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_114| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_112| |#Ultimate.C_memset_#ptr.offset|) (_ 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 01:20:55,525 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr361_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_114| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr361| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr361|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr361_116|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr361_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr361_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_84| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr361|)) is different from false [2021-11-21 01:20:57,546 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_#Ultimate.C_memset_#t~loopctr361_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_114| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr361| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr361|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr361_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr361_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))) (_ bv1 1))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr361|) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_85| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 01:20:59,569 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr361|) (forall ((|v_#Ultimate.C_memset_#t~loopctr361_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr361| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr361|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr361_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_86| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 01:21:01,587 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_87| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_83| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_84| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_85| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_86| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_87| |c_#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr361| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr361|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_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|))))))) (= (_ bv5 32) |c_#Ultimate.C_memset_#t~loopctr361|) (bvult (bvadd (_ bv4294967295 32) |c_#Ultimate.C_memset_#t~loopctr361|) |c_#Ultimate.C_memset_#amount|)) is different from false [2021-11-21 01:21:03,603 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_86| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_87| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$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))))) (bvult (_ bv5 32) |c_#Ultimate.C_memset_#amount|) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr361|)) is different from false [2021-11-21 01:21:05,615 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr361_83| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_88| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_86| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_87| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_83| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_84| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_85| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_86| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_87| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_88| |#Ultimate.C_memset_#ptr.offset|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr361_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_108| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr361_104| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_104| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_105| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_106| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_109| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_108| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#t~loopctr361_103| |v_#Ultimate.C_memset_#ptr.offset_18|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$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