./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:40:46,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:40:46,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:40:46,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:40:46,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:40:46,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:40:46,381 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:40:46,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:40:46,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:40:46,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:40:46,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:40:46,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:40:46,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:40:46,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:40:46,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:40:46,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:40:46,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:40:46,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:40:46,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:40:46,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:40:46,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:40:46,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:40:46,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:40:46,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:40:46,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:40:46,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:40:46,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:40:46,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:40:46,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:40:46,426 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:40:46,426 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:40:46,427 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:40:46,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:40:46,440 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:40:46,441 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:40:46,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:40:46,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:40:46,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:40:46,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:40:46,445 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:40:46,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:40:46,448 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 13:40:46,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:40:46,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:40:46,497 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:40:46,498 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:40:46,498 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:40:46,498 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:40:46,498 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:40:46,498 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 13:40:46,504 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:40:46,505 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:40:46,506 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 13:40:46,506 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 13:40:46,506 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:40:46,507 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 13:40:46,507 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 13:40:46,507 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 13:40:46,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:40:46,508 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:40:46,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 13:40:46,508 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:40:46,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:40:46,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:40:46,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:40:46,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:40:46,509 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:40:46,510 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:40:46,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:40:46,510 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:40:46,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:40:46,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:40:46,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:40:46,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:40:46,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:40:46,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:40:46,512 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:40:46,512 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 13:40:46,512 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 13:40:46,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:40:46,512 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:40:46,513 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:40:46,513 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_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2021-11-19 13:40:46,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:40:46,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:40:46,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:40:46,834 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:40:46,835 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:40:46,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-19 13:40:46,900 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/9e900eeb1/eda0dc999d3f4168ba7c5ad7e46eb322/FLAGdb3c801a5 [2021-11-19 13:40:47,493 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:40:47,494 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-19 13:40:47,523 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/9e900eeb1/eda0dc999d3f4168ba7c5ad7e46eb322/FLAGdb3c801a5 [2021-11-19 13:40:47,744 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/9e900eeb1/eda0dc999d3f4168ba7c5ad7e46eb322 [2021-11-19 13:40:47,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:40:47,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:40:47,750 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:40:47,750 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:40:47,754 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:40:47,754 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:40:47" (1/1) ... [2021-11-19 13:40:47,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48fd3563 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:47, skipping insertion in model container [2021-11-19 13:40:47,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:40:47" (1/1) ... [2021-11-19 13:40:47,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:40:47,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:40:48,343 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_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-19 13:40:48,524 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_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-19 13:40:48,531 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:40:48,541 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) [2021-11-19 13:40:48,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1be63931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:48, skipping insertion in model container [2021-11-19 13:40:48,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:40:48,542 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-19 13:40:48,545 INFO L158 Benchmark]: Toolchain (without parser) took 795.02ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 46.0MB in the beginning and 68.5MB in the end (delta: -22.5MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-19 13:40:48,545 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 64.4MB in the beginning and 64.4MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 13:40:48,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 792.26ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 45.7MB in the beginning and 68.8MB in the end (delta: -23.0MB). Peak memory consumption was 6.4MB. Max. memory is 16.1GB. [2021-11-19 13:40:48,549 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 64.4MB in the beginning and 64.4MB in the end (delta: 41.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 792.26ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 45.7MB in the beginning and 68.8MB in the end (delta: -23.0MB). Peak memory consumption was 6.4MB. 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_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 13:40:50,776 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 13:40:50,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 13:40:50,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 13:40:50,824 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 13:40:50,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 13:40:50,828 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 13:40:50,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 13:40:50,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 13:40:50,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 13:40:50,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 13:40:50,838 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 13:40:50,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 13:40:50,840 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 13:40:50,842 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 13:40:50,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 13:40:50,845 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 13:40:50,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 13:40:50,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 13:40:50,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 13:40:50,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 13:40:50,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 13:40:50,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 13:40:50,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 13:40:50,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 13:40:50,863 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 13:40:50,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 13:40:50,865 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 13:40:50,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 13:40:50,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 13:40:50,868 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 13:40:50,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 13:40:50,871 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 13:40:50,872 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 13:40:50,873 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 13:40:50,873 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 13:40:50,874 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 13:40:50,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 13:40:50,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 13:40:50,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 13:40:50,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 13:40:50,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 13:40:50,925 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 13:40:50,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 13:40:50,927 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 13:40:50,928 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 13:40:50,928 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 13:40:50,928 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 13:40:50,928 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 13:40:50,929 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 13:40:50,929 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 13:40:50,929 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 13:40:50,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 13:40:50,932 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 13:40:50,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 13:40:50,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 13:40:50,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 13:40:50,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 13:40:50,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 13:40:50,933 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 13:40:50,933 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 13:40:50,934 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 13:40:50,934 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 13:40:50,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 13:40:50,934 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 13:40:50,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 13:40:50,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 13:40:50,935 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 13:40:50,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 13:40:50,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:40:50,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 13:40:50,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 13:40:50,936 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 13:40:50,936 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 13:40:50,937 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 13:40:50,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 13:40:50,937 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 13:40:50,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 13:40:50,938 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_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca0a592612bf67ed64c0cb4dbe07151d7191a8039e0f3c4eacc12cd10ecaa237 [2021-11-19 13:40:51,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 13:40:51,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 13:40:51,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 13:40:51,387 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 13:40:51,387 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 13:40:51,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-19 13:40:51,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/26543c307/705bc583fda149ab966ad7795cedda97/FLAG1a9c53df2 [2021-11-19 13:40:52,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 13:40:52,105 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i [2021-11-19 13:40:52,130 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/26543c307/705bc583fda149ab966ad7795cedda97/FLAG1a9c53df2 [2021-11-19 13:40:52,322 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/data/26543c307/705bc583fda149ab966ad7795cedda97 [2021-11-19 13:40:52,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 13:40:52,326 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 13:40:52,328 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 13:40:52,328 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 13:40:52,332 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 13:40:52,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:40:52" (1/1) ... [2021-11-19 13:40:52,334 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41d929f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:52, skipping insertion in model container [2021-11-19 13:40:52,334 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:40:52" (1/1) ... [2021-11-19 13:40:52,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 13:40:52,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:40:52,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-19 13:40:53,020 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_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-19 13:40:53,039 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:40:53,054 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-19 13:40:53,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 13:40:53,092 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_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-19 13:40:53,202 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_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-19 13:40:53,206 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:40:53,210 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 13:40:53,258 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_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[33021,33034] [2021-11-19 13:40:53,343 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_84cba626-0e92-4e4a-b679-2ab27410145f/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-1.i[45234,45247] [2021-11-19 13:40:53,346 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 13:40:53,410 INFO L208 MainTranslator]: Completed translation [2021-11-19 13:40:53,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53 WrapperNode [2021-11-19 13:40:53,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 13:40:53,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 13:40:53,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 13:40:53,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 13:40:53,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,574 INFO L137 Inliner]: procedures = 180, calls = 297, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-19 13:40:53,575 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 13:40:53,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 13:40:53,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 13:40:53,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 13:40:53,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,736 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 13:40:53,737 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 13:40:53,738 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 13:40:53,738 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 13:40:53,739 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (1/1) ... [2021-11-19 13:40:53,751 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 13:40:53,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:40:53,778 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 13:40:53,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 13:40:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-19 13:40:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 13:40:53,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 13:40:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-19 13:40:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2021-11-19 13:40:53,849 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-19 13:40:53,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 13:40:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 13:40:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 13:40:53,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 13:40:53,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 13:40:54,082 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 13:40:54,097 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 13:41:00,841 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 13:41:00,851 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 13:41:00,851 INFO L301 CfgBuilder]: Removed 62 assume(true) statements. [2021-11-19 13:41:00,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:00 BoogieIcfgContainer [2021-11-19 13:41:00,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 13:41:00,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 13:41:00,856 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 13:41:00,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 13:41:00,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:40:52" (1/3) ... [2021-11-19 13:41:00,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade9756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:00, skipping insertion in model container [2021-11-19 13:41:00,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:40:53" (2/3) ... [2021-11-19 13:41:00,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade9756 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:41:00, skipping insertion in model container [2021-11-19 13:41:00,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:41:00" (3/3) ... [2021-11-19 13:41:00,862 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test8-1.i [2021-11-19 13:41:00,868 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 13:41:00,868 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 13:41:00,920 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 13:41:00,927 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 13:41:00,928 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 13:41:00,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 200 states have (on average 1.695) internal successors, (339), 217 states have internal predecessors, (339), 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) [2021-11-19 13:41:00,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 13:41:00,959 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:00,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:00,960 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:00,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:00,966 INFO L85 PathProgramCache]: Analyzing trace with hash 1334755327, now seen corresponding path program 1 times [2021-11-19 13:41:00,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:00,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1116405584] [2021-11-19 13:41:00,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:00,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:00,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:00,983 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:00,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 13:41:01,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:01,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 13:41:01,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:01,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:01,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:01,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:01,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:01,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1116405584] [2021-11-19 13:41:01,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1116405584] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:01,263 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:01,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 13:41:01,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746497691] [2021-11-19 13:41:01,266 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:01,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 13:41:01,272 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 13:41:01,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:41:01,333 INFO L87 Difference]: Start difference. First operand has 226 states, 200 states have (on average 1.695) internal successors, (339), 217 states have internal predecessors, (339), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-19 13:41:01,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:01,432 INFO L93 Difference]: Finished difference Result 450 states and 773 transitions. [2021-11-19 13:41:01,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 13:41:01,434 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-19 13:41:01,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:01,456 INFO L225 Difference]: With dead ends: 450 [2021-11-19 13:41:01,457 INFO L226 Difference]: Without dead ends: 222 [2021-11-19 13:41:01,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 13:41:01,474 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:01,478 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:41:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-19 13:41:01,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-11-19 13:41:01,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 197 states have (on average 1.3553299492385786) internal successors, (267), 213 states have internal predecessors, (267), 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) [2021-11-19 13:41:01,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 307 transitions. [2021-11-19 13:41:01,581 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 307 transitions. Word has length 9 [2021-11-19 13:41:01,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:01,582 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 307 transitions. [2021-11-19 13:41:01,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-19 13:41:01,583 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 307 transitions. [2021-11-19 13:41:01,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 13:41:01,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:01,588 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] [2021-11-19 13:41:01,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:01,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:01,803 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:01,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:01,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1790395171, now seen corresponding path program 1 times [2021-11-19 13:41:01,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:01,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1943998967] [2021-11-19 13:41:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:01,810 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:01,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:01,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:01,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 13:41:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:02,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:41:02,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:02,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:02,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:02,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:02,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1943998967] [2021-11-19 13:41:02,405 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1943998967] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:02,406 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:02,411 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 13:41:02,411 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646299549] [2021-11-19 13:41:02,411 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:02,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:41:02,414 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:41:02,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:41:02,415 INFO L87 Difference]: Start difference. First operand 222 states and 307 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2021-11-19 13:41:02,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:02,633 INFO L93 Difference]: Finished difference Result 355 states and 499 transitions. [2021-11-19 13:41:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:02,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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 44 [2021-11-19 13:41:02,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:02,636 INFO L225 Difference]: With dead ends: 355 [2021-11-19 13:41:02,636 INFO L226 Difference]: Without dead ends: 231 [2021-11-19 13:41:02,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:41:02,639 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 187 mSDsluCounter, 471 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 754 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:02,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 754 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:41:02,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-19 13:41:02,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 225. [2021-11-19 13:41:02,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 200 states have (on average 1.31) internal successors, (262), 216 states have internal predecessors, (262), 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) [2021-11-19 13:41:02,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 302 transitions. [2021-11-19 13:41:02,676 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 302 transitions. Word has length 44 [2021-11-19 13:41:02,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:02,676 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 302 transitions. [2021-11-19 13:41:02,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 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) [2021-11-19 13:41:02,677 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 302 transitions. [2021-11-19 13:41:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-19 13:41:02,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:02,682 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] [2021-11-19 13:41:02,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:02,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:02,897 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:02,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:02,898 INFO L85 PathProgramCache]: Analyzing trace with hash 1417019415, now seen corresponding path program 1 times [2021-11-19 13:41:02,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:02,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [130062117] [2021-11-19 13:41:02,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:02,899 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:02,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:02,913 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:02,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-19 13:41:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:03,144 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:41:03,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:03,179 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:03,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:03,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-19 13:41:03,286 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-19 13:41:03,287 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 [2021-11-19 13:41:03,385 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-19 13:41:03,386 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 [2021-11-19 13:41:03,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:03,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:03,740 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:03,741 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [130062117] [2021-11-19 13:41:03,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [130062117] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:03,741 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:03,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-19 13:41:03,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189563092] [2021-11-19 13:41:03,742 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:03,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 13:41:03,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:03,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 13:41:03,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:41:03,743 INFO L87 Difference]: Start difference. First operand 225 states and 302 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-11-19 13:41:09,407 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-19 13:41:13,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:13,451 INFO L93 Difference]: Finished difference Result 552 states and 724 transitions. [2021-11-19 13:41:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-19 13:41:13,454 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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 44 [2021-11-19 13:41:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:13,457 INFO L225 Difference]: With dead ends: 552 [2021-11-19 13:41:13,457 INFO L226 Difference]: Without dead ends: 424 [2021-11-19 13:41:13,458 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:13,459 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 216 mSDsluCounter, 791 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:13,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1063 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 226 Invalid, 1 Unknown, 0 Unchecked, 9.6s Time] [2021-11-19 13:41:13,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2021-11-19 13:41:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 227. [2021-11-19 13:41:13,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 202 states have (on average 1.306930693069307) internal successors, (264), 218 states have internal predecessors, (264), 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) [2021-11-19 13:41:13,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 304 transitions. [2021-11-19 13:41:13,481 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 304 transitions. Word has length 44 [2021-11-19 13:41:13,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:13,481 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 304 transitions. [2021-11-19 13:41:13,482 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 6 states have internal predecessors, (47), 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) [2021-11-19 13:41:13,482 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 304 transitions. [2021-11-19 13:41:13,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 13:41:13,484 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:13,484 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] [2021-11-19 13:41:13,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:13,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:13,699 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:13,700 INFO L85 PathProgramCache]: Analyzing trace with hash 385113170, now seen corresponding path program 1 times [2021-11-19 13:41:13,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:13,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924394732] [2021-11-19 13:41:13,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:13,701 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:13,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:13,704 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:13,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-19 13:41:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:13,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:41:13,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:14,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:14,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:14,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:14,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924394732] [2021-11-19 13:41:14,275 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924394732] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:14,275 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:14,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-19 13:41:14,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821786884] [2021-11-19 13:41:14,276 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:14,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 13:41:14,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:14,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 13:41:14,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 13:41:14,277 INFO L87 Difference]: Start difference. First operand 227 states and 304 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:14,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:14,413 INFO L93 Difference]: Finished difference Result 459 states and 616 transitions. [2021-11-19 13:41:14,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:14,414 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-19 13:41:14,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:14,417 INFO L225 Difference]: With dead ends: 459 [2021-11-19 13:41:14,417 INFO L226 Difference]: Without dead ends: 236 [2021-11-19 13:41:14,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:41:14,419 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 202 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 703 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:14,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 703 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 13:41:14,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2021-11-19 13:41:14,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 230. [2021-11-19 13:41:14,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 205 states have (on average 1.2634146341463415) internal successors, (259), 221 states have internal predecessors, (259), 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) [2021-11-19 13:41:14,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 299 transitions. [2021-11-19 13:41:14,436 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 299 transitions. Word has length 61 [2021-11-19 13:41:14,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:14,436 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 299 transitions. [2021-11-19 13:41:14,437 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:14,437 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 299 transitions. [2021-11-19 13:41:14,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 13:41:14,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:14,440 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] [2021-11-19 13:41:14,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:14,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:14,656 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:14,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:14,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1958386564, now seen corresponding path program 1 times [2021-11-19 13:41:14,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:14,657 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [375309189] [2021-11-19 13:41:14,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:14,658 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:14,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:14,659 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:14,670 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-19 13:41:14,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:14,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 13:41:14,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:15,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:15,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:15,669 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:15,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [375309189] [2021-11-19 13:41:15,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [375309189] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:15,669 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:15,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 8 [2021-11-19 13:41:15,670 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208190647] [2021-11-19 13:41:15,670 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:15,670 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 13:41:15,670 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:15,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 13:41:15,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:41:15,671 INFO L87 Difference]: Start difference. First operand 230 states and 299 transitions. Second operand has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:15,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:15,879 INFO L93 Difference]: Finished difference Result 455 states and 593 transitions. [2021-11-19 13:41:15,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:15,880 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-19 13:41:15,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:15,883 INFO L225 Difference]: With dead ends: 455 [2021-11-19 13:41:15,883 INFO L226 Difference]: Without dead ends: 229 [2021-11-19 13:41:15,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 13:41:15,885 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 358 mSDsluCounter, 852 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:15,886 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [363 Valid, 1124 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:41:15,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-19 13:41:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 224. [2021-11-19 13:41:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 199 states have (on average 1.2512562814070352) internal successors, (249), 215 states have internal predecessors, (249), 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) [2021-11-19 13:41:15,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 289 transitions. [2021-11-19 13:41:15,902 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 289 transitions. Word has length 61 [2021-11-19 13:41:15,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:15,902 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 289 transitions. [2021-11-19 13:41:15,903 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.0) internal successors, (80), 8 states have internal predecessors, (80), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:15,903 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 289 transitions. [2021-11-19 13:41:15,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-19 13:41:15,905 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:15,905 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] [2021-11-19 13:41:15,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:16,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:16,122 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:16,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:16,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1660994696, now seen corresponding path program 1 times [2021-11-19 13:41:16,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:16,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2010119183] [2021-11-19 13:41:16,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:16,125 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:16,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:16,126 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:16,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-19 13:41:16,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:16,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:41:16,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:16,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:16,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:17,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:17,261 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:17,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2010119183] [2021-11-19 13:41:17,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2010119183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 13:41:17,262 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 13:41:17,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-19 13:41:17,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854378485] [2021-11-19 13:41:17,262 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:17,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 13:41:17,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:17,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 13:41:17,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:41:17,264 INFO L87 Difference]: Start difference. First operand 224 states and 289 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:18,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:18,045 INFO L93 Difference]: Finished difference Result 549 states and 694 transitions. [2021-11-19 13:41:18,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 13:41:18,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2021-11-19 13:41:18,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:18,049 INFO L225 Difference]: With dead ends: 549 [2021-11-19 13:41:18,049 INFO L226 Difference]: Without dead ends: 329 [2021-11-19 13:41:18,050 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 13:41:18,051 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 79 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:18,051 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 561 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-19 13:41:18,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-11-19 13:41:18,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 326. [2021-11-19 13:41:18,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 300 states have (on average 1.21) internal successors, (363), 316 states have internal predecessors, (363), 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) [2021-11-19 13:41:18,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 405 transitions. [2021-11-19 13:41:18,076 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 405 transitions. Word has length 61 [2021-11-19 13:41:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:18,078 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 405 transitions. [2021-11-19 13:41:18,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 13:41:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 405 transitions. [2021-11-19 13:41:18,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 13:41:18,080 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:18,081 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:18,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:18,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:18,284 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:18,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:18,285 INFO L85 PathProgramCache]: Analyzing trace with hash -999436228, now seen corresponding path program 1 times [2021-11-19 13:41:18,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:18,286 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1041078035] [2021-11-19 13:41:18,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:18,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:18,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:18,290 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:18,294 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-19 13:41:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:18,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 13:41:18,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:18,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 13:41:18,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 13:41:19,041 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:19,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1041078035] [2021-11-19 13:41:19,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1041078035] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 13:41:19,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 13:41:19,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2021-11-19 13:41:19,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905362117] [2021-11-19 13:41:19,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 13:41:19,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 13:41:19,043 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:19,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 13:41:19,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-19 13:41:19,044 INFO L87 Difference]: Start difference. First operand 326 states and 405 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:41:19,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:19,117 INFO L93 Difference]: Finished difference Result 616 states and 777 transitions. [2021-11-19 13:41:19,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 13:41:19,118 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 76 [2021-11-19 13:41:19,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:19,122 INFO L225 Difference]: With dead ends: 616 [2021-11-19 13:41:19,122 INFO L226 Difference]: Without dead ends: 329 [2021-11-19 13:41:19,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2021-11-19 13:41:19,124 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 2 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 830 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:19,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 830 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 13:41:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2021-11-19 13:41:19,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2021-11-19 13:41:19,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 302 states have (on average 1.2119205298013245) internal successors, (366), 319 states have internal predecessors, (366), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-19 13:41:19,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 409 transitions. [2021-11-19 13:41:19,145 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 409 transitions. Word has length 76 [2021-11-19 13:41:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:19,146 INFO L470 AbstractCegarLoop]: Abstraction has 329 states and 409 transitions. [2021-11-19 13:41:19,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 13:41:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 409 transitions. [2021-11-19 13:41:19,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-19 13:41:19,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:19,148 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:19,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:19,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 13:41:19,373 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:19,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:19,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1611628322, now seen corresponding path program 1 times [2021-11-19 13:41:19,374 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:19,375 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [413269069] [2021-11-19 13:41:19,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:19,375 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:19,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:19,377 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:19,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-19 13:41:19,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:19,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:41:19,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:19,993 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 13:41:19,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:20,280 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 13:41:20,280 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:20,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [413269069] [2021-11-19 13:41:20,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [413269069] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:20,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1632460133] [2021-11-19 13:41:20,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:20,281 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:20,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:41:20,289 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:41:20,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-19 13:41:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:20,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:41:20,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:20,940 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 13:41:20,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:21,177 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 13:41:21,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1632460133] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:21,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942048773] [2021-11-19 13:41:21,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 13:41:21,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:21,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:21,181 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:21,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-19 13:41:21,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 13:41:21,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 13:41:21,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:21,642 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 13:41:21,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:21,911 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-19 13:41:21,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942048773] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:21,911 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:41:21,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 11 [2021-11-19 13:41:21,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18311976] [2021-11-19 13:41:21,912 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:41:21,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-19 13:41:21,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:41:21,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-19 13:41:21,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-11-19 13:41:21,914 INFO L87 Difference]: Start difference. First operand 329 states and 409 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 13:41:22,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:41:22,463 INFO L93 Difference]: Finished difference Result 634 states and 805 transitions. [2021-11-19 13:41:22,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 13:41:22,470 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2021-11-19 13:41:22,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:41:22,474 INFO L225 Difference]: With dead ends: 634 [2021-11-19 13:41:22,475 INFO L226 Difference]: Without dead ends: 344 [2021-11-19 13:41:22,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 473 GetRequests, 453 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:41:22,477 INFO L933 BasicCegarLoop]: 278 mSDtfsCounter, 49 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 1647 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 13:41:22,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 1647 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 13:41:22,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-11-19 13:41:22,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 340. [2021-11-19 13:41:22,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 312 states have (on average 1.2307692307692308) internal successors, (384), 329 states have internal predecessors, (384), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-19 13:41:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 427 transitions. [2021-11-19 13:41:22,502 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 427 transitions. Word has length 78 [2021-11-19 13:41:22,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:41:22,502 INFO L470 AbstractCegarLoop]: Abstraction has 340 states and 427 transitions. [2021-11-19 13:41:22,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 13:41:22,503 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 427 transitions. [2021-11-19 13:41:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-19 13:41:22,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:41:22,504 INFO L514 BasicCegarLoop]: trace histogram [8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:41:22,555 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:22,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:22,920 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-19 13:41:23,117 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:23,117 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:41:23,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:41:23,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1394113212, now seen corresponding path program 2 times [2021-11-19 13:41:23,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:41:23,119 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1652376693] [2021-11-19 13:41:23,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:41:23,119 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:41:23,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:41:23,120 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:41:23,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-19 13:41:24,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:41:24,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:24,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:41:24,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:24,350 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 13:41:24,351 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 13:41:24,848 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 13:41:24,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1652376693] [2021-11-19 13:41:24,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1652376693] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:24,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [403776883] [2021-11-19 13:41:24,849 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:41:24,849 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-19 13:41:24,849 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 [2021-11-19 13:41:24,850 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-19 13:41:24,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-19 13:41:28,189 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:41:28,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:41:28,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-19 13:41:28,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:41:28,395 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 28 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-19 13:41:28,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:41:28,659 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 13:41:28,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [403776883] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:41:28,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92835812] [2021-11-19 13:41:28,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-19 13:41:28,660 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 13:41:28,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 13:41:28,662 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 13:41:28,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-19 13:55:11,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-19 13:55:11,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 13:55:11,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 13:55:11,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 13:55:11,364 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 13:55:11,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 13:55:11,923 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 27 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-19 13:55:11,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92835812] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 13:55:11,923 INFO L186 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2021-11-19 13:55:11,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8, 8, 8, 8] total 22 [2021-11-19 13:55:11,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327296168] [2021-11-19 13:55:11,924 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2021-11-19 13:55:11,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-19 13:55:11,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 13:55:11,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-19 13:55:11,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462 [2021-11-19 13:55:11,936 INFO L87 Difference]: Start difference. First operand 340 states and 427 transitions. Second operand has 22 states, 22 states have (on average 4.454545454545454) internal successors, (98), 22 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 13:55:13,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 13:55:13,917 INFO L93 Difference]: Finished difference Result 667 states and 855 transitions. [2021-11-19 13:55:13,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-11-19 13:55:13,920 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.454545454545454) internal successors, (98), 22 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 84 [2021-11-19 13:55:13,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 13:55:13,923 INFO L225 Difference]: With dead ends: 667 [2021-11-19 13:55:13,923 INFO L226 Difference]: Without dead ends: 360 [2021-11-19 13:55:13,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 525 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 541 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=678, Invalid=1674, Unknown=0, NotChecked=0, Total=2352 [2021-11-19 13:55:13,927 INFO L933 BasicCegarLoop]: 281 mSDtfsCounter, 214 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 265 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 3032 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 13:55:13,927 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [214 Valid, 3032 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 265 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 13:55:13,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-19 13:55:13,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 352. [2021-11-19 13:55:13,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 324 states have (on average 1.2376543209876543) internal successors, (401), 341 states have internal predecessors, (401), 21 states have call successors, (21), 4 states have call predecessors, (21), 5 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2021-11-19 13:55:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 444 transitions. [2021-11-19 13:55:13,958 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 444 transitions. Word has length 84 [2021-11-19 13:55:13,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 13:55:13,958 INFO L470 AbstractCegarLoop]: Abstraction has 352 states and 444 transitions. [2021-11-19 13:55:13,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.454545454545454) internal successors, (98), 22 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 6 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-19 13:55:13,959 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 444 transitions. [2021-11-19 13:55:13,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-19 13:55:13,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 13:55:13,962 INFO L514 BasicCegarLoop]: trace histogram [20, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 13:55:14,067 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-19 13:55:14,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-19 13:55:14,398 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-19 13:55:14,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/cvc4 --incremental --print-success --lang smt [2021-11-19 13:55:14,593 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 13:55:14,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 13:55:14,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2021540476, now seen corresponding path program 3 times [2021-11-19 13:55:14,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 13:55:14,595 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1476289048] [2021-11-19 13:55:14,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 13:55:14,595 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 13:55:14,595 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 13:55:14,596 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 13:55:14,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_84cba626-0e92-4e4a-b679-2ab27410145f/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process