./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:04:26,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:04:26,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:04:26,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:04:26,560 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:04:26,565 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:04:26,568 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:04:26,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:04:26,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:04:26,584 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:04:26,586 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:04:26,588 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:04:26,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:04:26,593 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:04:26,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:04:26,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:04:26,606 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:04:26,607 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:04:26,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:04:26,621 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:04:26,624 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:04:26,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:04:26,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:04:26,631 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:04:26,642 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:04:26,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:04:26,644 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:04:26,646 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:04:26,647 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:04:26,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:04:26,651 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:04:26,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:04:26,655 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:04:26,656 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:04:26,658 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:04:26,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:04:26,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:04:26,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:04:26,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:04:26,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:04:26,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:04:26,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 00:04:26,730 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:04:26,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:04:26,732 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:04:26,733 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:04:26,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:04:26,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:04:26,735 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:04:26,735 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:04:26,735 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:04:26,736 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:04:26,737 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:04:26,737 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:04:26,738 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:04:26,738 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:04:26,738 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:04:26,739 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:04:26,739 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:04:26,739 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:04:26,740 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:04:26,740 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:04:26,741 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:04:26,741 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:04:26,741 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:04:26,742 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:04:26,742 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:04:26,742 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:04:26,743 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:04:26,743 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:04:26,743 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:04:26,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:04:26,744 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:04:26,744 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:04:26,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:04:26,745 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:04:26,745 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:04:26,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:04:26,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:04:26,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:04:26,747 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:04:26,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:04:26,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:04:26,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:04:26,750 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2021-11-21 00:04:27,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:04:27,126 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:04:27,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:04:27,130 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:04:27,131 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:04:27,133 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2021-11-21 00:04:27,243 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/111596474/6551415d04324791bded422805db3be8/FLAG7801aa996 [2021-11-21 00:04:28,020 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:04:28,021 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2021-11-21 00:04:28,071 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/111596474/6551415d04324791bded422805db3be8/FLAG7801aa996 [2021-11-21 00:04:28,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/111596474/6551415d04324791bded422805db3be8 [2021-11-21 00:04:28,237 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:04:28,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:04:28,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:04:28,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:04:28,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:04:28,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:04:28" (1/1) ... [2021-11-21 00:04:28,254 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1251dab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:28, skipping insertion in model container [2021-11-21 00:04:28,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:04:28" (1/1) ... [2021-11-21 00:04:28,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:04:28,376 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:04:28,966 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2021-11-21 00:04:29,090 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2021-11-21 00:04:29,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:04:29,128 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-21 00:04:29,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@7429b394 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:29, skipping insertion in model container [2021-11-21 00:04:29,129 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:04:29,135 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-21 00:04:29,138 INFO L158 Benchmark]: Toolchain (without parser) took 897.11ms. Allocated memory is still 94.4MB. Free memory was 57.9MB in the beginning and 57.6MB in the end (delta: 279.1kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 00:04:29,140 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 94.4MB. Free memory was 49.6MB in the beginning and 49.6MB in the end (delta: 38.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:04:29,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 884.34ms. Allocated memory is still 94.4MB. Free memory was 57.7MB in the beginning and 58.0MB in the end (delta: -286.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 00:04:29,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 94.4MB. Free memory was 49.6MB in the beginning and 49.6MB in the end (delta: 38.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 884.34ms. Allocated memory is still 94.4MB. Free memory was 57.7MB in the beginning and 58.0MB in the end (delta: -286.6kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 766]: 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:04:31,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:04:31,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:04:31,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:04:31,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:04:31,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:04:31,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:04:31,999 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:04:32,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:04:32,011 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:04:32,013 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:04:32,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:04:32,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:04:32,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:04:32,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:04:32,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:04:32,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:04:32,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:04:32,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:04:32,046 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:04:32,048 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:04:32,050 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:04:32,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:04:32,059 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:04:32,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:04:32,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:04:32,071 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:04:32,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:04:32,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:04:32,076 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:04:32,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:04:32,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:04:32,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:04:32,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:04:32,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:04:32,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:04:32,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:04:32,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:04:32,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:04:32,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:04:32,088 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:04:32,089 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Bitvector.epf [2021-11-21 00:04:32,140 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:04:32,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:04:32,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:04:32,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:04:32,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:04:32,144 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:04:32,144 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:04:32,145 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:04:32,145 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:04:32,145 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:04:32,146 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:04:32,147 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:04:32,149 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 00:04:32,149 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 00:04:32,149 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:04:32,150 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:04:32,150 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:04:32,150 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:04:32,151 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:04:32,151 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:04:32,151 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 00:04:32,151 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 00:04:32,152 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 00:04:32,152 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:04:32,152 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 00:04:32,152 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:04:32,153 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:04:32,153 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:04:32,153 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:04:32,154 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:04:32,154 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:04:32,155 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:04:32,155 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:04:32,155 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:04:32,156 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:04:32,156 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:04:32,156 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:04:32,157 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:04:32,157 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:04:32,157 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2021-11-21 00:04:32,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:04:32,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:04:32,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:04:32,700 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:04:32,701 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:04:32,703 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2021-11-21 00:04:32,788 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/d4c3e5063/9e073e703492438694a5e79697e5f1ef/FLAGa06ed48bb [2021-11-21 00:04:33,686 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:04:33,687 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2021-11-21 00:04:33,707 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/d4c3e5063/9e073e703492438694a5e79697e5f1ef/FLAGa06ed48bb [2021-11-21 00:04:33,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/data/d4c3e5063/9e073e703492438694a5e79697e5f1ef [2021-11-21 00:04:33,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:04:33,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:04:33,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:04:33,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:04:33,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:04:33,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:04:33" (1/1) ... [2021-11-21 00:04:33,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6829bab4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:33, skipping insertion in model container [2021-11-21 00:04:33,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:04:33" (1/1) ... [2021-11-21 00:04:33,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:04:33,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:04:34,648 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2021-11-21 00:04:34,908 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2021-11-21 00:04:34,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:04:34,961 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-21 00:04:34,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:04:35,012 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2021-11-21 00:04:35,174 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2021-11-21 00:04:35,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:04:35,219 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:04:35,277 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[33021,33034] [2021-11-21 00:04:35,342 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_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i[45234,45247] [2021-11-21 00:04:35,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:04:35,404 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:04:35,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35 WrapperNode [2021-11-21 00:04:35,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:04:35,406 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:04:35,407 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:04:35,407 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:04:35,417 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,613 INFO L137 Inliner]: procedures = 180, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1175 [2021-11-21 00:04:35,613 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:04:35,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:04:35,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:04:35,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:04:35,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,784 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:04:35,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:04:35,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:04:35,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:04:35,808 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (1/1) ... [2021-11-21 00:04:35,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:04:35,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:04:35,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:04:35,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:04:35,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-21 00:04:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:04:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:04:35,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:04:35,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:04:35,915 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:04:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-21 00:04:35,915 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-21 00:04:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:04:35,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:04:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:04:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:04:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:04:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:04:35,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:04:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:04:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:04:35,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:04:35,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:04:36,248 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:04:36,250 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:04:36,255 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-21 00:04:42,967 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:04:42,997 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:04:42,997 INFO L301 CfgBuilder]: Removed 71 assume(true) statements. [2021-11-21 00:04:43,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:04:43 BoogieIcfgContainer [2021-11-21 00:04:43,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:04:43,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:04:43,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:04:43,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:04:43,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:04:33" (1/3) ... [2021-11-21 00:04:43,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6797d3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:04:43, skipping insertion in model container [2021-11-21 00:04:43,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:04:35" (2/3) ... [2021-11-21 00:04:43,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6797d3fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:04:43, skipping insertion in model container [2021-11-21 00:04:43,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:04:43" (3/3) ... [2021-11-21 00:04:43,015 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test8-2.i [2021-11-21 00:04:43,022 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:04:43,023 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 641 error locations. [2021-11-21 00:04:43,098 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:04:43,107 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:04:43,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 641 error locations. [2021-11-21 00:04:43,160 INFO L276 IsEmpty]: Start isEmpty. Operand has 1296 states, 634 states have (on average 2.2539432176656153) internal successors, (1429), 1287 states have internal predecessors, (1429), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2021-11-21 00:04:43,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:04:43,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:43,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:04:43,170 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:04:43,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:43,176 INFO L85 PathProgramCache]: Analyzing trace with hash 132136, now seen corresponding path program 1 times [2021-11-21 00:04:43,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:04:43,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549384196] [2021-11-21 00:04:43,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:43,193 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:04:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:04:43,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:04:43,203 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:04:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:43,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:04:43,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:04:43,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:04:43,605 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 00:04:43,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:04:43,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:43,658 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:04:43,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549384196] [2021-11-21 00:04:43,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549384196] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:43,659 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:43,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:04:43,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784810477] [2021-11-21 00:04:43,662 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:43,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:04:43,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:04:43,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:04:43,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:04:43,730 INFO L87 Difference]: Start difference. First operand has 1296 states, 634 states have (on average 2.2539432176656153) internal successors, (1429), 1287 states have internal predecessors, (1429), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:46,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:46,760 INFO L93 Difference]: Finished difference Result 1476 states and 1582 transitions. [2021-11-21 00:04:46,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:04:46,781 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2021-11-21 00:04:46,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:46,825 INFO L225 Difference]: With dead ends: 1476 [2021-11-21 00:04:46,826 INFO L226 Difference]: Without dead ends: 1474 [2021-11-21 00:04:46,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:04:46,836 INFO L933 BasicCegarLoop]: 817 mSDtfsCounter, 1162 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:46,838 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1166 Valid, 1048 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-21 00:04:46,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2021-11-21 00:04:46,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1285. [2021-11-21 00:04:47,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1285 states, 637 states have (on average 2.111459968602826) internal successors, (1345), 1275 states have internal predecessors, (1345), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2021-11-21 00:04:47,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1285 states to 1285 states and 1387 transitions. [2021-11-21 00:04:47,018 INFO L78 Accepts]: Start accepts. Automaton has 1285 states and 1387 transitions. Word has length 3 [2021-11-21 00:04:47,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:47,019 INFO L470 AbstractCegarLoop]: Abstraction has 1285 states and 1387 transitions. [2021-11-21 00:04:47,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:47,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1285 states and 1387 transitions. [2021-11-21 00:04:47,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 00:04:47,021 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:47,021 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 00:04:47,042 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:04:47,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:04:47,243 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:04:47,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:47,244 INFO L85 PathProgramCache]: Analyzing trace with hash 132137, now seen corresponding path program 1 times [2021-11-21 00:04:47,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:04:47,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1614363846] [2021-11-21 00:04:47,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:47,245 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:04:47,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:04:47,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:04:47,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:04:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:47,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:04:47,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:04:47,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:04:47,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:47,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:04:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:47,572 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:04:47,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1614363846] [2021-11-21 00:04:47,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1614363846] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:47,572 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:47,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:04:47,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072499916] [2021-11-21 00:04:47,573 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:47,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:04:47,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:04:47,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:04:47,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:04:47,576 INFO L87 Difference]: Start difference. First operand 1285 states and 1387 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:54,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:54,012 INFO L93 Difference]: Finished difference Result 1960 states and 2107 transitions. [2021-11-21 00:04:54,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:04:54,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 3 [2021-11-21 00:04:54,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:54,027 INFO L225 Difference]: With dead ends: 1960 [2021-11-21 00:04:54,028 INFO L226 Difference]: Without dead ends: 1960 [2021-11-21 00:04:54,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:04:54,030 INFO L933 BasicCegarLoop]: 946 mSDtfsCounter, 2187 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2190 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:54,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2190 Valid, 1740 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2021-11-21 00:04:54,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2021-11-21 00:04:54,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1324. [2021-11-21 00:04:54,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 684 states have (on average 2.0921052631578947) internal successors, (1431), 1313 states have internal predecessors, (1431), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 00:04:54,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1475 transitions. [2021-11-21 00:04:54,086 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1475 transitions. Word has length 3 [2021-11-21 00:04:54,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:54,087 INFO L470 AbstractCegarLoop]: Abstraction has 1324 states and 1475 transitions. [2021-11-21 00:04:54,087 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:54,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1475 transitions. [2021-11-21 00:04:54,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:04:54,088 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:54,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:04:54,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:04:54,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:04:54,294 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:04:54,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:54,295 INFO L85 PathProgramCache]: Analyzing trace with hash -846217710, now seen corresponding path program 1 times [2021-11-21 00:04:54,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:04:54,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [73758066] [2021-11-21 00:04:54,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:54,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:04:54,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:04:54,304 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:04:54,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:04:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:54,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:04:54,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:04:54,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:04:54,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:54,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:04:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:54,553 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:04:54,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [73758066] [2021-11-21 00:04:54,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [73758066] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:54,553 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:54,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:04:54,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133266847] [2021-11-21 00:04:54,554 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:54,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:04:54,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:04:54,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:04:54,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:04:54,556 INFO L87 Difference]: Start difference. First operand 1324 states and 1475 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:57,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:04:57,456 INFO L93 Difference]: Finished difference Result 1649 states and 1822 transitions. [2021-11-21 00:04:57,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:04:57,457 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:04:57,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:04:57,468 INFO L225 Difference]: With dead ends: 1649 [2021-11-21 00:04:57,468 INFO L226 Difference]: Without dead ends: 1649 [2021-11-21 00:04:57,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:04:57,472 INFO L933 BasicCegarLoop]: 1206 mSDtfsCounter, 990 mSDsluCounter, 406 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 995 SdHoareTripleChecker+Valid, 1612 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:04:57,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [995 Valid, 1612 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-21 00:04:57,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2021-11-21 00:04:57,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1277. [2021-11-21 00:04:57,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 684 states have (on average 2.0160818713450293) internal successors, (1379), 1266 states have internal predecessors, (1379), 22 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (22), 8 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-21 00:04:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1423 transitions. [2021-11-21 00:04:57,521 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1423 transitions. Word has length 8 [2021-11-21 00:04:57,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:04:57,521 INFO L470 AbstractCegarLoop]: Abstraction has 1277 states and 1423 transitions. [2021-11-21 00:04:57,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:04:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1423 transitions. [2021-11-21 00:04:57,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:04:57,522 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:04:57,523 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:04:57,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:04:57,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:04:57,734 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:04:57,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:04:57,736 INFO L85 PathProgramCache]: Analyzing trace with hash -846217709, now seen corresponding path program 1 times [2021-11-21 00:04:57,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:04:57,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [806154480] [2021-11-21 00:04:57,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:04:57,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:04:57,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:04:57,740 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:04:57,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:04:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:04:57,859 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:04:57,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:04:57,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:04:57,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:57,937 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:04:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:04:58,031 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:04:58,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [806154480] [2021-11-21 00:04:58,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [806154480] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:04:58,032 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:04:58,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-21 00:04:58,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988402117] [2021-11-21 00:04:58,033 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:04:58,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:04:58,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:04:58,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:04:58,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:04:58,035 INFO L87 Difference]: Start difference. First operand 1277 states and 1423 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:04,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:04,572 INFO L93 Difference]: Finished difference Result 1706 states and 1842 transitions. [2021-11-21 00:05:04,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:04,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 00:05:04,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:04,585 INFO L225 Difference]: With dead ends: 1706 [2021-11-21 00:05:04,585 INFO L226 Difference]: Without dead ends: 1706 [2021-11-21 00:05:04,585 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:04,586 INFO L933 BasicCegarLoop]: 1391 mSDtfsCounter, 727 mSDsluCounter, 1162 mSDsCounter, 0 mSdLazyCounter, 1386 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 2553 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:04,587 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 2553 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1386 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2021-11-21 00:05:04,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2021-11-21 00:05:04,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1475. [2021-11-21 00:05:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1475 states, 891 states have (on average 2.005611672278339) internal successors, (1787), 1463 states have internal predecessors, (1787), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:05:04,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1475 states to 1475 states and 1833 transitions. [2021-11-21 00:05:04,635 INFO L78 Accepts]: Start accepts. Automaton has 1475 states and 1833 transitions. Word has length 8 [2021-11-21 00:05:04,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:04,636 INFO L470 AbstractCegarLoop]: Abstraction has 1475 states and 1833 transitions. [2021-11-21 00:05:04,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1475 states and 1833 transitions. [2021-11-21 00:05:04,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:05:04,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:04,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:04,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:04,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:04,855 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr534REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:04,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:04,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1255764539, now seen corresponding path program 1 times [2021-11-21 00:05:04,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:04,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584665161] [2021-11-21 00:05:04,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:04,856 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:04,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:04,857 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:04,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 00:05:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:04,993 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:05:04,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:05,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:05,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:05,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:05,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:05,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584665161] [2021-11-21 00:05:05,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1584665161] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:05,212 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:05,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:05:05,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507756237] [2021-11-21 00:05:05,213 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:05,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:05:05,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:05,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:05:05,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:05,215 INFO L87 Difference]: Start difference. First operand 1475 states and 1833 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:05,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:05,829 INFO L93 Difference]: Finished difference Result 2288 states and 2863 transitions. [2021-11-21 00:05:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:05,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:05:05,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:05,845 INFO L225 Difference]: With dead ends: 2288 [2021-11-21 00:05:05,846 INFO L226 Difference]: Without dead ends: 2288 [2021-11-21 00:05:05,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:05:05,847 INFO L933 BasicCegarLoop]: 1445 mSDtfsCounter, 748 mSDsluCounter, 1122 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 2567 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:05,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 2567 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:05:05,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2288 states. [2021-11-21 00:05:05,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2288 to 1871. [2021-11-21 00:05:05,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1285 states have (on average 1.9906614785992218) internal successors, (2558), 1857 states have internal predecessors, (2558), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:05,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 2608 transitions. [2021-11-21 00:05:05,915 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 2608 transitions. Word has length 11 [2021-11-21 00:05:05,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:05,916 INFO L470 AbstractCegarLoop]: Abstraction has 1871 states and 2608 transitions. [2021-11-21 00:05:05,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:05,918 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 2608 transitions. [2021-11-21 00:05:05,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 00:05:05,919 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:05,919 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:05,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:06,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:06,138 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr344REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:06,138 INFO L85 PathProgramCache]: Analyzing trace with hash -680989669, now seen corresponding path program 1 times [2021-11-21 00:05:06,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:06,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851254885] [2021-11-21 00:05:06,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:06,139 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:06,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:06,145 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:06,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 00:05:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:06,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:05:06,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:06,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:06,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:06,350 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:06,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851254885] [2021-11-21 00:05:06,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851254885] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:06,350 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:06,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:05:06,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516556609] [2021-11-21 00:05:06,351 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:06,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:06,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:06,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:06,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:06,352 INFO L87 Difference]: Start difference. First operand 1871 states and 2608 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:06,389 INFO L93 Difference]: Finished difference Result 1994 states and 2668 transitions. [2021-11-21 00:05:06,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:06,389 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 00:05:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:06,402 INFO L225 Difference]: With dead ends: 1994 [2021-11-21 00:05:06,402 INFO L226 Difference]: Without dead ends: 1994 [2021-11-21 00:05:06,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:06,406 INFO L933 BasicCegarLoop]: 1464 mSDtfsCounter, 585 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 586 SdHoareTripleChecker+Valid, 3248 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:06,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [586 Valid, 3248 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:05:06,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1994 states. [2021-11-21 00:05:06,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1994 to 1775. [2021-11-21 00:05:06,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1775 states, 1213 states have (on average 1.9670239076669416) internal successors, (2386), 1761 states have internal predecessors, (2386), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:06,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1775 states to 1775 states and 2436 transitions. [2021-11-21 00:05:06,476 INFO L78 Accepts]: Start accepts. Automaton has 1775 states and 2436 transitions. Word has length 13 [2021-11-21 00:05:06,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:06,477 INFO L470 AbstractCegarLoop]: Abstraction has 1775 states and 2436 transitions. [2021-11-21 00:05:06,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:06,477 INFO L276 IsEmpty]: Start isEmpty. Operand 1775 states and 2436 transitions. [2021-11-21 00:05:06,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-21 00:05:06,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:06,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:06,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:06,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:06,690 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr639ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:06,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1323693751, now seen corresponding path program 1 times [2021-11-21 00:05:06,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:06,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1361563165] [2021-11-21 00:05:06,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:06,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:06,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:06,692 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:06,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 00:05:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:06,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:05:06,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:06,879 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:05:06,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:05:06,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:05:06,960 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-21 00:05:06,961 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 3 case distinctions, treesize of input 30 treesize of output 36 [2021-11-21 00:05:07,044 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-21 00:05:07,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 67 treesize of output 23 [2021-11-21 00:05:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:07,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:07,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:07,165 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:07,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1361563165] [2021-11-21 00:05:07,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1361563165] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:07,166 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:07,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:05:07,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022135475] [2021-11-21 00:05:07,166 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:07,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:05:07,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:07,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:05:07,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:05:07,168 INFO L87 Difference]: Start difference. First operand 1775 states and 2436 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:09,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:09,630 INFO L93 Difference]: Finished difference Result 2417 states and 3339 transitions. [2021-11-21 00:05:09,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:09,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-21 00:05:09,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:09,646 INFO L225 Difference]: With dead ends: 2417 [2021-11-21 00:05:09,646 INFO L226 Difference]: Without dead ends: 2417 [2021-11-21 00:05:09,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:05:09,648 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 461 mSDsluCounter, 4642 mSDsCounter, 0 mSdLazyCounter, 465 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 5863 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:09,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [462 Valid, 5863 Invalid, 467 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 465 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-11-21 00:05:09,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2021-11-21 00:05:09,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 1774. [2021-11-21 00:05:09,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1212 states have (on average 1.966996699669967) internal successors, (2384), 1760 states have internal predecessors, (2384), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:09,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2434 transitions. [2021-11-21 00:05:09,708 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2434 transitions. Word has length 14 [2021-11-21 00:05:09,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:09,709 INFO L470 AbstractCegarLoop]: Abstraction has 1774 states and 2434 transitions. [2021-11-21 00:05:09,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:09,709 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2434 transitions. [2021-11-21 00:05:09,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:05:09,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:09,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:09,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:09,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:09,925 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:09,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:09,927 INFO L85 PathProgramCache]: Analyzing trace with hash -413650658, now seen corresponding path program 1 times [2021-11-21 00:05:09,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:09,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56741902] [2021-11-21 00:05:09,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:09,928 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:09,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:09,929 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:09,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 00:05:10,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:10,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-21 00:05:10,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:10,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:10,178 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:10,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:10,228 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:10,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56741902] [2021-11-21 00:05:10,229 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56741902] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:10,230 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:10,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-21 00:05:10,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542956298] [2021-11-21 00:05:10,230 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:10,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:10,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:10,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:10,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:10,233 INFO L87 Difference]: Start difference. First operand 1774 states and 2434 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:10,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:10,319 INFO L93 Difference]: Finished difference Result 1714 states and 2348 transitions. [2021-11-21 00:05:10,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:05:10,320 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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 18 [2021-11-21 00:05:10,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:10,332 INFO L225 Difference]: With dead ends: 1714 [2021-11-21 00:05:10,332 INFO L226 Difference]: Without dead ends: 1714 [2021-11-21 00:05:10,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:10,333 INFO L933 BasicCegarLoop]: 1221 mSDtfsCounter, 2266 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2271 SdHoareTripleChecker+Valid, 1313 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:10,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2271 Valid, 1313 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:05:10,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1714 states. [2021-11-21 00:05:10,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1714 to 1714. [2021-11-21 00:05:10,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1714 states, 1176 states have (on average 1.9540816326530612) internal successors, (2298), 1700 states have internal predecessors, (2298), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:10,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1714 states to 1714 states and 2348 transitions. [2021-11-21 00:05:10,390 INFO L78 Accepts]: Start accepts. Automaton has 1714 states and 2348 transitions. Word has length 18 [2021-11-21 00:05:10,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:10,391 INFO L470 AbstractCegarLoop]: Abstraction has 1714 states and 2348 transitions. [2021-11-21 00:05:10,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:10,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1714 states and 2348 transitions. [2021-11-21 00:05:10,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 00:05:10,392 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:10,393 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] [2021-11-21 00:05:10,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:10,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:10,609 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr39REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:10,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:10,609 INFO L85 PathProgramCache]: Analyzing trace with hash 1913675577, now seen corresponding path program 1 times [2021-11-21 00:05:10,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:10,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1474869] [2021-11-21 00:05:10,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:10,610 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:10,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:10,611 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:10,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-21 00:05:10,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:10,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:05:10,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:10,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:10,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:10,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:10,880 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:10,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1474869] [2021-11-21 00:05:10,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1474869] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:10,880 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:10,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-21 00:05:10,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543236797] [2021-11-21 00:05:10,881 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:10,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:05:10,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:10,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:05:10,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:10,882 INFO L87 Difference]: Start difference. First operand 1714 states and 2348 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:10,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:10,963 INFO L93 Difference]: Finished difference Result 1686 states and 2292 transitions. [2021-11-21 00:05:10,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:10,971 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 00:05:10,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:10,980 INFO L225 Difference]: With dead ends: 1686 [2021-11-21 00:05:10,980 INFO L226 Difference]: Without dead ends: 1686 [2021-11-21 00:05:10,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:05:10,981 INFO L933 BasicCegarLoop]: 1176 mSDtfsCounter, 1104 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:10,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1109 Valid, 2529 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:05:10,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1686 states. [2021-11-21 00:05:11,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1686 to 1684. [2021-11-21 00:05:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1684 states, 1160 states have (on average 1.9310344827586208) internal successors, (2240), 1670 states have internal predecessors, (2240), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:11,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2290 transitions. [2021-11-21 00:05:11,021 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2290 transitions. Word has length 20 [2021-11-21 00:05:11,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:11,021 INFO L470 AbstractCegarLoop]: Abstraction has 1684 states and 2290 transitions. [2021-11-21 00:05:11,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2290 transitions. [2021-11-21 00:05:11,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:05:11,029 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:11,030 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] [2021-11-21 00:05:11,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:11,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:11,242 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr52REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:11,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:11,242 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753126, now seen corresponding path program 1 times [2021-11-21 00:05:11,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:11,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1694547502] [2021-11-21 00:05:11,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:11,243 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:11,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:11,244 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:11,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-21 00:05:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:11,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:05:11,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:11,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:05:11,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:11,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:11,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:11,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:11,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1694547502] [2021-11-21 00:05:11,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1694547502] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:11,713 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:11,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-21 00:05:11,714 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806112341] [2021-11-21 00:05:11,714 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:11,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:11,716 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:11,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:11,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:11,717 INFO L87 Difference]: Start difference. First operand 1684 states and 2290 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:14,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:14,473 INFO L93 Difference]: Finished difference Result 2545 states and 3556 transitions. [2021-11-21 00:05:14,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:05:14,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 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 34 [2021-11-21 00:05:14,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:14,484 INFO L225 Difference]: With dead ends: 2545 [2021-11-21 00:05:14,484 INFO L226 Difference]: Without dead ends: 2545 [2021-11-21 00:05:14,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:14,485 INFO L933 BasicCegarLoop]: 665 mSDtfsCounter, 2170 mSDsluCounter, 629 mSDsCounter, 0 mSdLazyCounter, 1027 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2172 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1027 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:14,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2172 Valid, 1294 Invalid, 1050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1027 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-21 00:05:14,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2545 states. [2021-11-21 00:05:14,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2545 to 1680. [2021-11-21 00:05:14,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1680 states, 1160 states have (on average 1.9241379310344828) internal successors, (2232), 1666 states have internal predecessors, (2232), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:14,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1680 states to 1680 states and 2282 transitions. [2021-11-21 00:05:14,550 INFO L78 Accepts]: Start accepts. Automaton has 1680 states and 2282 transitions. Word has length 34 [2021-11-21 00:05:14,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:14,551 INFO L470 AbstractCegarLoop]: Abstraction has 1680 states and 2282 transitions. [2021-11-21 00:05:14,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:14,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1680 states and 2282 transitions. [2021-11-21 00:05:14,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:05:14,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:14,552 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] [2021-11-21 00:05:14,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:14,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:14,764 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr53REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:14,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1224753127, now seen corresponding path program 1 times [2021-11-21 00:05:14,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:14,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1629437632] [2021-11-21 00:05:14,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:14,765 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:14,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:14,766 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:14,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-21 00:05:14,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:14,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:05:14,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:14,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:05:15,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:15,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:15,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:15,755 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:15,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1629437632] [2021-11-21 00:05:15,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1629437632] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:15,755 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:15,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:05:15,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116018498] [2021-11-21 00:05:15,756 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:15,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:05:15,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:05:15,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:05:15,757 INFO L87 Difference]: Start difference. First operand 1680 states and 2282 transitions. Second operand has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:25,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:25,059 INFO L93 Difference]: Finished difference Result 2098 states and 2508 transitions. [2021-11-21 00:05:25,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 00:05:25,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 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 34 [2021-11-21 00:05:25,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:25,076 INFO L225 Difference]: With dead ends: 2098 [2021-11-21 00:05:25,076 INFO L226 Difference]: Without dead ends: 2098 [2021-11-21 00:05:25,076 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:05:25,077 INFO L933 BasicCegarLoop]: 1497 mSDtfsCounter, 2684 mSDsluCounter, 1264 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2684 SdHoareTripleChecker+Valid, 2761 SdHoareTripleChecker+Invalid, 1532 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:25,077 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2684 Valid, 2761 Invalid, 1532 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 1513 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2021-11-21 00:05:25,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2021-11-21 00:05:25,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1676. [2021-11-21 00:05:25,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1676 states, 1160 states have (on average 1.9172413793103449) internal successors, (2224), 1662 states have internal predecessors, (2224), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:25,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1676 states to 1676 states and 2274 transitions. [2021-11-21 00:05:25,136 INFO L78 Accepts]: Start accepts. Automaton has 1676 states and 2274 transitions. Word has length 34 [2021-11-21 00:05:25,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:25,137 INFO L470 AbstractCegarLoop]: Abstraction has 1676 states and 2274 transitions. [2021-11-21 00:05:25,137 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 12.8) internal successors, (64), 6 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:25,137 INFO L276 IsEmpty]: Start isEmpty. Operand 1676 states and 2274 transitions. [2021-11-21 00:05:25,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-21 00:05:25,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:25,145 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] [2021-11-21 00:05:25,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:25,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:25,359 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:25,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:25,360 INFO L85 PathProgramCache]: Analyzing trace with hash -515146363, now seen corresponding path program 1 times [2021-11-21 00:05:25,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:25,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [757126241] [2021-11-21 00:05:25,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:25,361 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:25,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:25,363 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:25,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-21 00:05:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:25,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:05:25,646 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:25,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:25,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:25,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:25,963 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:25,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [757126241] [2021-11-21 00:05:25,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [757126241] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:25,964 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:25,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:05:25,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020421656] [2021-11-21 00:05:25,964 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:25,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:05:25,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:25,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:05:25,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:05:25,966 INFO L87 Difference]: Start difference. First operand 1676 states and 2274 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:26,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:26,045 INFO L93 Difference]: Finished difference Result 1664 states and 2254 transitions. [2021-11-21 00:05:26,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:26,046 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 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 52 [2021-11-21 00:05:26,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:26,057 INFO L225 Difference]: With dead ends: 1664 [2021-11-21 00:05:26,057 INFO L226 Difference]: Without dead ends: 1664 [2021-11-21 00:05:26,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:26,059 INFO L933 BasicCegarLoop]: 1170 mSDtfsCounter, 1080 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 2415 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 00:05:26,059 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 2415 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:05:26,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1664 states. [2021-11-21 00:05:26,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1664 to 1664. [2021-11-21 00:05:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1664 states, 1148 states have (on average 1.9198606271777003) internal successors, (2204), 1650 states have internal predecessors, (2204), 25 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (25), 11 states have call predecessors, (25), 25 states have call successors, (25) [2021-11-21 00:05:26,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1664 states to 1664 states and 2254 transitions. [2021-11-21 00:05:26,098 INFO L78 Accepts]: Start accepts. Automaton has 1664 states and 2254 transitions. Word has length 52 [2021-11-21 00:05:26,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:26,099 INFO L470 AbstractCegarLoop]: Abstraction has 1664 states and 2254 transitions. [2021-11-21 00:05:26,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1664 states and 2254 transitions. [2021-11-21 00:05:26,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-21 00:05:26,100 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:26,100 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] [2021-11-21 00:05:26,123 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:26,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:26,324 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:26,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:26,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1189287633, now seen corresponding path program 1 times [2021-11-21 00:05:26,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:26,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1962126751] [2021-11-21 00:05:26,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:26,326 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:26,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:26,328 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:26,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-21 00:05:26,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:26,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:05:26,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:26,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:05:26,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:05:27,501 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 00:05:27,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 00:05:27,509 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:05:27,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 21 [2021-11-21 00:05:27,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:27,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:29,660 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_#t~malloc36#1.base_9| (_ BitVec 32))) (or (not (= (_ bv0 1) (select |c_#valid| |v_ULTIMATE.start_main_#t~malloc36#1.base_9|))) (let ((.cse0 (bvadd |c_ULTIMATE.start_main_~user~0#1.offset| (_ bv12 32)))) (and (bvule (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|) .cse0) (bvule .cse0 (select (store |c_#length| |v_ULTIMATE.start_main_#t~malloc36#1.base_9| (_ bv44 32)) |c_ULTIMATE.start_main_~user~0#1.base|)))))) is different from false [2021-11-21 00:05:32,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:32,788 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:32,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1962126751] [2021-11-21 00:05:32,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1962126751] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:32,789 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:32,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:05:32,790 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981767066] [2021-11-21 00:05:32,790 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:32,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:05:32,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:32,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:05:32,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=12, Unknown=1, NotChecked=6, Total=30 [2021-11-21 00:05:32,792 INFO L87 Difference]: Start difference. First operand 1664 states and 2254 transitions. Second operand has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:39,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:39,004 INFO L93 Difference]: Finished difference Result 2227 states and 2909 transitions. [2021-11-21 00:05:39,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:05:39,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 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 60 [2021-11-21 00:05:39,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:39,015 INFO L225 Difference]: With dead ends: 2227 [2021-11-21 00:05:39,015 INFO L226 Difference]: Without dead ends: 2227 [2021-11-21 00:05:39,016 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=16, Invalid=17, Unknown=1, NotChecked=8, Total=42 [2021-11-21 00:05:39,016 INFO L933 BasicCegarLoop]: 939 mSDtfsCounter, 1463 mSDsluCounter, 1324 mSDsCounter, 0 mSdLazyCounter, 1461 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1470 SdHoareTripleChecker+Valid, 2263 SdHoareTripleChecker+Invalid, 4034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 1461 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2526 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:39,017 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1470 Valid, 2263 Invalid, 4034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 1461 Invalid, 0 Unknown, 2526 Unchecked, 6.1s Time] [2021-11-21 00:05:39,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2021-11-21 00:05:39,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 1312. [2021-11-21 00:05:39,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 832 states have (on average 1.8461538461538463) internal successors, (1536), 1300 states have internal predecessors, (1536), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:05:39,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1582 transitions. [2021-11-21 00:05:39,046 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1582 transitions. Word has length 60 [2021-11-21 00:05:39,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:39,047 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 1582 transitions. [2021-11-21 00:05:39,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.2) internal successors, (116), 6 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:39,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1582 transitions. [2021-11-21 00:05:39,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-21 00:05:39,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:39,048 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] [2021-11-21 00:05:39,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2021-11-21 00:05:39,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:39,263 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:39,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash 444125234, now seen corresponding path program 1 times [2021-11-21 00:05:39,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:39,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783512587] [2021-11-21 00:05:39,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:39,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:39,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:39,266 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:39,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-21 00:05:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:39,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:05:39,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:39,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:39,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:39,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2021-11-21 00:05:40,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:40,211 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:40,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783512587] [2021-11-21 00:05:40,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783512587] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:40,212 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:40,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-21 00:05:40,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389257724] [2021-11-21 00:05:40,212 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:40,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:05:40,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:40,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:05:40,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:05:40,214 INFO L87 Difference]: Start difference. First operand 1312 states and 1582 transitions. Second operand has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:42,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:42,252 INFO L93 Difference]: Finished difference Result 1310 states and 1580 transitions. [2021-11-21 00:05:42,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:05:42,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 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 62 [2021-11-21 00:05:42,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:42,277 INFO L225 Difference]: With dead ends: 1310 [2021-11-21 00:05:42,277 INFO L226 Difference]: Without dead ends: 1310 [2021-11-21 00:05:42,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:05:42,278 INFO L933 BasicCegarLoop]: 743 mSDtfsCounter, 1604 mSDsluCounter, 574 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1609 SdHoareTripleChecker+Valid, 1317 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:42,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1609 Valid, 1317 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-21 00:05:42,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1310 states. [2021-11-21 00:05:42,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1310 to 1310. [2021-11-21 00:05:42,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1310 states, 832 states have (on average 1.84375) internal successors, (1534), 1298 states have internal predecessors, (1534), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:05:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1310 states to 1310 states and 1580 transitions. [2021-11-21 00:05:42,317 INFO L78 Accepts]: Start accepts. Automaton has 1310 states and 1580 transitions. Word has length 62 [2021-11-21 00:05:42,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:42,318 INFO L470 AbstractCegarLoop]: Abstraction has 1310 states and 1580 transitions. [2021-11-21 00:05:42,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 24.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:42,319 INFO L276 IsEmpty]: Start isEmpty. Operand 1310 states and 1580 transitions. [2021-11-21 00:05:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-21 00:05:42,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:42,321 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] [2021-11-21 00:05:42,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-21 00:05:42,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:42,538 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr76REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:42,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:42,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054235, now seen corresponding path program 1 times [2021-11-21 00:05:42,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:42,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1707361561] [2021-11-21 00:05:42,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:42,540 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:42,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:42,542 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:42,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-21 00:05:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:42,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:05:42,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:42,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:05:43,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 00:05:43,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-21 00:05:43,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:43,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:43,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:43,164 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:43,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1707361561] [2021-11-21 00:05:43,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1707361561] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:43,164 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:43,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-21 00:05:43,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486230840] [2021-11-21 00:05:43,165 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:43,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 00:05:43,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:43,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 00:05:43,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:05:43,167 INFO L87 Difference]: Start difference. First operand 1310 states and 1580 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:46,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:46,707 INFO L93 Difference]: Finished difference Result 1309 states and 1579 transitions. [2021-11-21 00:05:46,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:05:46,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 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 65 [2021-11-21 00:05:46,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:46,713 INFO L225 Difference]: With dead ends: 1309 [2021-11-21 00:05:46,713 INFO L226 Difference]: Without dead ends: 1309 [2021-11-21 00:05:46,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-21 00:05:46,714 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 4 mSDsluCounter, 1845 mSDsCounter, 0 mSdLazyCounter, 1556 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 1557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:46,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 2977 Invalid, 1557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1556 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2021-11-21 00:05:46,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2021-11-21 00:05:46,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1309. [2021-11-21 00:05:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1309 states, 832 states have (on average 1.8425480769230769) internal successors, (1533), 1297 states have internal predecessors, (1533), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:05:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1309 states to 1309 states and 1579 transitions. [2021-11-21 00:05:46,738 INFO L78 Accepts]: Start accepts. Automaton has 1309 states and 1579 transitions. Word has length 65 [2021-11-21 00:05:46,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:46,738 INFO L470 AbstractCegarLoop]: Abstraction has 1309 states and 1579 transitions. [2021-11-21 00:05:46,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 1309 states and 1579 transitions. [2021-11-21 00:05:46,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-11-21 00:05:46,740 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:46,740 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] [2021-11-21 00:05:46,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (16)] Ended with exit code 0 [2021-11-21 00:05:46,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:05:46,953 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr77REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:05:46,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:05:46,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1859054234, now seen corresponding path program 1 times [2021-11-21 00:05:46,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:05:46,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1388993588] [2021-11-21 00:05:46,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:05:46,955 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:05:46,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:05:46,955 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:05:46,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-21 00:05:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:05:47,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:05:47,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:05:47,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:05:47,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 15 [2021-11-21 00:05:47,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:05:47,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 27 [2021-11-21 00:05:47,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2021-11-21 00:05:47,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:47,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:05:47,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:05:47,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:05:47,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1388993588] [2021-11-21 00:05:47,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1388993588] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:05:47,814 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:05:47,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-21 00:05:47,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108038288] [2021-11-21 00:05:47,815 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:05:47,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 00:05:47,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:05:47,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 00:05:47,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:05:47,816 INFO L87 Difference]: Start difference. First operand 1309 states and 1579 transitions. Second operand has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:59,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:05:59,912 INFO L93 Difference]: Finished difference Result 1308 states and 1578 transitions. [2021-11-21 00:05:59,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:05:59,914 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 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 65 [2021-11-21 00:05:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:05:59,917 INFO L225 Difference]: With dead ends: 1308 [2021-11-21 00:05:59,918 INFO L226 Difference]: Without dead ends: 1308 [2021-11-21 00:05:59,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:05:59,919 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 2 mSDsluCounter, 3784 mSDsCounter, 0 mSdLazyCounter, 3011 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 3012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:05:59,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 4916 Invalid, 3012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3011 Invalid, 0 Unknown, 0 Unchecked, 12.0s Time] [2021-11-21 00:05:59,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1308 states. [2021-11-21 00:05:59,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1308 to 1308. [2021-11-21 00:05:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1308 states, 831 states have (on average 1.8435619735258724) internal successors, (1532), 1296 states have internal predecessors, (1532), 23 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (23), 9 states have call predecessors, (23), 23 states have call successors, (23) [2021-11-21 00:05:59,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1308 states to 1308 states and 1578 transitions. [2021-11-21 00:05:59,948 INFO L78 Accepts]: Start accepts. Automaton has 1308 states and 1578 transitions. Word has length 65 [2021-11-21 00:05:59,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:05:59,949 INFO L470 AbstractCegarLoop]: Abstraction has 1308 states and 1578 transitions. [2021-11-21 00:05:59,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.285714285714286) internal successors, (72), 8 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:05:59,949 INFO L276 IsEmpty]: Start isEmpty. Operand 1308 states and 1578 transitions. [2021-11-21 00:05:59,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-11-21 00:05:59,950 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:05:59,951 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:05:59,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-21 00:06:00,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:06:00,167 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:06:00,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:00,167 INFO L85 PathProgramCache]: Analyzing trace with hash 827014060, now seen corresponding path program 1 times [2021-11-21 00:06:00,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:06:00,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [485493104] [2021-11-21 00:06:00,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:00,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:06:00,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:06:00,169 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:06:00,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-21 00:06:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:00,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:06:00,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:00,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:00,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:00,822 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:06:00,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [485493104] [2021-11-21 00:06:00,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [485493104] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:06:00,823 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:06:00,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:06:00,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764195007] [2021-11-21 00:06:00,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:06:00,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:06:00,824 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:06:00,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:06:00,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:06:00,825 INFO L87 Difference]: Start difference. First operand 1308 states and 1578 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:06:00,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:00,947 INFO L93 Difference]: Finished difference Result 1318 states and 1591 transitions. [2021-11-21 00:06:00,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:06:00,948 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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 73 [2021-11-21 00:06:00,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:00,953 INFO L225 Difference]: With dead ends: 1318 [2021-11-21 00:06:00,953 INFO L226 Difference]: Without dead ends: 1318 [2021-11-21 00:06:00,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2021-11-21 00:06:00,955 INFO L933 BasicCegarLoop]: 1132 mSDtfsCounter, 7 mSDsluCounter, 3385 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4517 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:00,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 4517 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 00:06:00,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1318 states. [2021-11-21 00:06:00,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1318 to 1318. [2021-11-21 00:06:00,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1318 states, 839 states have (on average 1.840286054827175) internal successors, (1544), 1305 states have internal predecessors, (1544), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-21 00:06:00,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1318 states to 1318 states and 1591 transitions. [2021-11-21 00:06:00,991 INFO L78 Accepts]: Start accepts. Automaton has 1318 states and 1591 transitions. Word has length 73 [2021-11-21 00:06:00,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:00,992 INFO L470 AbstractCegarLoop]: Abstraction has 1318 states and 1591 transitions. [2021-11-21 00:06:00,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 00:06:00,993 INFO L276 IsEmpty]: Start isEmpty. Operand 1318 states and 1591 transitions. [2021-11-21 00:06:00,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-21 00:06:00,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:00,994 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:01,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2021-11-21 00:06:01,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:06:01,211 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:06:01,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:01,212 INFO L85 PathProgramCache]: Analyzing trace with hash -856717428, now seen corresponding path program 1 times [2021-11-21 00:06:01,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:06:01,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1889863504] [2021-11-21 00:06:01,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:01,213 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:06:01,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:06:01,214 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:06:01,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-21 00:06:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:01,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:06:01,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:01,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:01,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:01,989 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:01,990 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:06:01,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1889863504] [2021-11-21 00:06:01,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1889863504] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:01,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [351787310] [2021-11-21 00:06:01,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:01,991 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:06:01,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:06:01,993 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:06:01,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2021-11-21 00:06:02,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:02,351 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:06:02,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:02,500 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:02,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:02,677 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:02,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [351787310] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:02,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902301779] [2021-11-21 00:06:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:06:02,678 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:02,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:02,681 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:06:02,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-11-21 00:06:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:06:02,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-21 00:06:03,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:03,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:03,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902301779] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:03,562 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:06:03,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6, 6] total 14 [2021-11-21 00:06:03,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209858943] [2021-11-21 00:06:03,563 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:06:03,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 00:06:03,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:06:03,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 00:06:03,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-11-21 00:06:03,565 INFO L87 Difference]: Start difference. First operand 1318 states and 1591 transitions. Second operand has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:06:04,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:06:04,239 INFO L93 Difference]: Finished difference Result 1332 states and 1608 transitions. [2021-11-21 00:06:04,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-11-21 00:06:04,240 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 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 75 [2021-11-21 00:06:04,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:06:04,244 INFO L225 Difference]: With dead ends: 1332 [2021-11-21 00:06:04,244 INFO L226 Difference]: Without dead ends: 1326 [2021-11-21 00:06:04,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 453 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2021-11-21 00:06:04,246 INFO L933 BasicCegarLoop]: 1133 mSDtfsCounter, 48 mSDsluCounter, 4517 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 5650 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:06:04,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 5650 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 00:06:04,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2021-11-21 00:06:04,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1324. [2021-11-21 00:06:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1324 states, 845 states have (on average 1.8355029585798817) internal successors, (1551), 1311 states have internal predecessors, (1551), 23 states have call successors, (23), 4 states have call predecessors, (23), 5 states have return successors, (24), 9 states have call predecessors, (24), 23 states have call successors, (24) [2021-11-21 00:06:04,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1324 states to 1324 states and 1598 transitions. [2021-11-21 00:06:04,282 INFO L78 Accepts]: Start accepts. Automaton has 1324 states and 1598 transitions. Word has length 75 [2021-11-21 00:06:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:06:04,283 INFO L470 AbstractCegarLoop]: Abstraction has 1324 states and 1598 transitions. [2021-11-21 00:06:04,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 6.0) internal successors, (84), 14 states have internal predecessors, (84), 1 states have call successors, (1), 1 states have call predecessors, (1), 3 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-11-21 00:06:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1324 states and 1598 transitions. [2021-11-21 00:06:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-21 00:06:04,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:06:04,284 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:06:04,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-11-21 00:06:04,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2021-11-21 00:06:04,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (19)] Ended with exit code 0 [2021-11-21 00:06:04,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:06:04,900 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr80REQUIRES_VIOLATION === [ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION (and 637 more)] === [2021-11-21 00:06:04,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:06:04,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1737209676, now seen corresponding path program 2 times [2021-11-21 00:06:04,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:06:04,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [25865657] [2021-11-21 00:06:04,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:06:04,901 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:06:04,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:06:04,902 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:06:04,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2021-11-21 00:06:05,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:06:05,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:06:05,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:06:05,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:05,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:06,196 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:06:06,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [25865657] [2021-11-21 00:06:06,196 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [25865657] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:06,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [629871653] [2021-11-21 00:06:06,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:06:06,197 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 00:06:06,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 00:06:06,198 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 00:06:06,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2021-11-21 00:06:07,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:06:07,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:06:07,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:06:07,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:07,327 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:07,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:06:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:06:07,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [629871653] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:06:07,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007549878] [2021-11-21 00:06:07,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-21 00:06:07,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:06:07,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:06:07,570 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:06:07,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a2dd68fe-2ba1-4224-a1ef-e2a39536dbe0/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-11-21 00:06:32,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-21 00:06:32,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 00:06:32,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 00:06:32,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:06:32,700 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:06:32,985 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:06:32,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2021-11-21 00:06:33,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2021-11-21 00:08:34,386 WARN L227 SmtUtils]: Spent 35.43s on a formula simplification. DAG size of input: 114 DAG size of output: 34 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:08:34,387 INFO L354 Elim1Store]: treesize reduction 884, result has 5.9 percent of original size [2021-11-21 00:08:34,388 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 77 treesize of output 81 [2021-11-21 00:08:35,105 INFO L354 Elim1Store]: treesize reduction 276, result has 0.4 percent of original size [2021-11-21 00:08:35,106 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 127 treesize of output 40 [2021-11-21 00:08:35,229 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 6 refuted. 15 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:08:35,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:08:37,150 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:08:37,150 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 65 treesize of output 64 [2021-11-21 00:14:01,396 INFO L354 Elim1Store]: treesize reduction 5, result has 89.8 percent of original size [2021-11-21 00:14:01,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 117 treesize of output 116 [2021-11-21 00:14:04,799 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$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_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) is different from false [2021-11-21 00:14:15,354 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 0 refuted. 21 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:14:15,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007549878] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:14:15,355 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-21 00:14:15,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10, 10, 15, 15] total 45 [2021-11-21 00:14:15,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518488285] [2021-11-21 00:14:15,356 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-21 00:14:15,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-11-21 00:14:15,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:14:15,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-11-21 00:14:15,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1537, Unknown=188, NotChecked=84, Total=1980 [2021-11-21 00:14:15,360 INFO L87 Difference]: Start difference. First operand 1324 states and 1598 transitions. Second operand has 45 states, 43 states have (on average 5.372093023255814) internal successors, (231), 43 states have internal predecessors, (231), 3 states have call successors, (3), 3 states have call predecessors, (3), 4 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 00:14:19,802 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_116| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_114| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_118| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_120| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32))) (or (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_120|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_118|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_116|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_114|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (= |c_old(#memory_$Pointer$.base)| |c_#memory_$Pointer$.base|)) is different from false [2021-11-21 00:15:34,728 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv1 32) |c_#Ultimate.C_memset_#t~loopctr280|) (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_114| (_ BitVec 32))) (or (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_114|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_112|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))))))))) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:16:13,619 WARN L227 SmtUtils]: Spent 6.43s on a formula simplification that was a NOOP. DAG size: 112 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 00:16:15,628 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv2 32) |c_#Ultimate.C_memset_#t~loopctr280|) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32))) |c_#memory_$Pointer$.base|)) (forall ((|v_#Ultimate.C_memset_#t~loopctr280_112| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$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~loopctr280|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_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)))))) is different from false [2021-11-21 00:16:56,819 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))))) (= (_ bv3 32) |c_#Ultimate.C_memset_#t~loopctr280|) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:16:58,832 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32)) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_86|) (_ bv0 32))))) (= (_ bv4 32) |c_#Ultimate.C_memset_#t~loopctr280|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1)))))) is different from false [2021-11-21 00:17:23,387 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (= (_ bv6 32) |c_#Ultimate.C_memset_#t~loopctr280|) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|#Ultimate.C_memset_#t~loopctr280| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (_ bv1 1) (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select (store |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base| (store (select |c_#memory_$Pointer$.base| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |c_#Ultimate.C_memset_#ptr.offset| |#Ultimate.C_memset_#t~loopctr280|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))))))) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_88| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false [2021-11-21 00:18:04,918 WARN L838 $PredicateComparison]: unable to prove that (and (= (_ bv0 1) (bvadd (bvneg (select |c_#valid| |c_#Ultimate.C_memset_#ptr.base|)) (_ bv1 1))) (not (bvult (_ bv6 32) |c_#Ultimate.C_memset_#amount|)) (forall ((|v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2| (_ BitVec 32)) (|v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2| (_ BitVec 32))) (or (exists ((|v_#Ultimate.C_memset_#t~loopctr280_106| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_105| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_104| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_103| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_109| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_107| (_ BitVec 32)) (|v_#Ultimate.C_memset_#ptr.offset_18| (_ BitVec 32))) (not (= |c_#Ultimate.C_memset_#ptr.base| (select (select (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_105|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_103|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_109|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_107|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_106|) (_ bv0 32)) (bvadd |v_#Ultimate.C_memset_#ptr.offset_18| |v_#Ultimate.C_memset_#t~loopctr280_104|) (_ bv0 32))) |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|))))) (= (_ bv0 1) (bvadd (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (bvneg (select |c_#valid| (select (select |c_#memory_$Pointer$.base| |v_ULTIMATE.start_main_~user~0#1.base_BEFORE_CALL_2|) (bvadd (_ bv8 32) |v_ULTIMATE.start_main_~user~0#1.offset_BEFORE_CALL_2|)))))))))) (_ bv1 1))))) (exists ((|v_#Ultimate.C_memset_#t~loopctr280_87| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_86| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_85| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_84| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_83| (_ BitVec 32)) (|#Ultimate.C_memset_#ptr.offset| (_ BitVec 32)) (|v_#Ultimate.C_memset_#t~loopctr280_88| (_ BitVec 32))) (= (store |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base| (store (store (store (store (store (store (select |c_old(#memory_$Pointer$.base)| |c_#Ultimate.C_memset_#ptr.base|) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_83|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_84|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_85|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_86|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_87|) (_ bv0 32)) (bvadd |#Ultimate.C_memset_#ptr.offset| |v_#Ultimate.C_memset_#t~loopctr280_88|) (_ bv0 32))) |c_#memory_$Pointer$.base|))) is different from false