./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:40:48,390 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:40:48,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:40:48,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:40:48,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:40:48,457 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:40:48,459 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:40:48,463 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:40:48,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:40:48,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:40:48,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:40:48,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:40:48,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:40:48,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:40:48,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:40:48,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:40:48,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:40:48,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:40:48,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:40:48,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:40:48,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:40:48,507 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:40:48,508 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:40:48,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:40:48,512 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:40:48,513 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:40:48,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:40:48,514 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:40:48,515 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:40:48,516 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:40:48,516 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:40:48,517 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:40:48,518 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:40:48,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:40:48,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:40:48,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:40:48,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:40:48,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:40:48,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:40:48,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:40:48,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:40:48,523 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:40:48,545 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:40:48,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:40:48,546 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:40:48,546 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:40:48,547 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:40:48,547 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:40:48,547 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:40:48,547 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:40:48,547 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:40:48,547 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:40:48,548 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:40:48,548 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:40:48,548 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:40:48,548 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:40:48,548 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:40:48,549 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:40:48,549 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:40:48,550 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:40:48,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:40:48,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:40:48,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:40:48,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:40:48,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:40:48,551 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:40:48,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:40:48,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:40:48,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:40:48,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:40:48,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:40:48,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:40:48,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:40:48,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:40:48,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:40:48,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:40:48,553 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:40:48,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:40:48,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:40:48,554 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:40:48,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:40:48,554 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_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2021-11-03 05:40:48,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:40:48,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:40:48,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:40:48,882 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:40:48,883 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:40:48,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2021-11-03 05:40:48,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/1fdecaedb/c13d865dac414f8ca68c1e174df296ee/FLAG199ac268d [2021-11-03 05:40:49,532 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:40:49,533 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2021-11-03 05:40:49,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/1fdecaedb/c13d865dac414f8ca68c1e174df296ee/FLAG199ac268d [2021-11-03 05:40:49,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/1fdecaedb/c13d865dac414f8ca68c1e174df296ee [2021-11-03 05:40:49,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:40:49,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:40:49,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:49,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:40:49,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:40:49,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:49" (1/1) ... [2021-11-03 05:40:49,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d4d979 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:49, skipping insertion in model container [2021-11-03 05:40:49,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:49" (1/1) ... [2021-11-03 05:40:49,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:40:49,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:40:50,282 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2021-11-03 05:40:50,453 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2021-11-03 05:40:50,474 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:50,485 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-11-03 05:40:50,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3463a4f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:50, skipping insertion in model container [2021-11-03 05:40:50,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:50,493 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 05:40:50,495 INFO L168 Benchmark]: Toolchain (without parser) took 698.64 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 88.0 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:40:50,497 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 61.6 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:40:50,499 INFO L168 Benchmark]: CACSL2BoogieTranslator took 695.55 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 88.0 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:40:50,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 83.9 MB. Free memory was 61.7 MB in the beginning and 61.6 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 695.55 ms. Allocated memory is still 123.7 MB. Free memory was 86.5 MB in the beginning and 88.0 MB in the end (delta: -1.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 736]: 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_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:40:52,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:40:52,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:40:52,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:40:52,978 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:40:52,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:40:52,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:40:52,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:40:53,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:40:53,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:40:53,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:40:53,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:40:53,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:40:53,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:40:53,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:40:53,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:40:53,030 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:40:53,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:40:53,033 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:40:53,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:40:53,043 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:40:53,045 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:40:53,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:40:53,050 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:40:53,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:40:53,058 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:40:53,058 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:40:53,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:40:53,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:40:53,062 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:40:53,063 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:40:53,064 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:40:53,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:40:53,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:40:53,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:40:53,092 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:40:53,093 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:40:53,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:40:53,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:40:53,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:40:53,095 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:40:53,097 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:40:53,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:40:53,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:40:53,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:40:53,149 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:40:53,150 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:40:53,150 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:40:53,150 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:40:53,151 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:40:53,151 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:40:53,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:40:53,154 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:40:53,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:40:53,155 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:40:53,155 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:40:53,155 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:40:53,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:40:53,156 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:40:53,156 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:40:53,156 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:40:53,156 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:40:53,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:40:53,157 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:40:53,157 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:40:53,157 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:40:53,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:40:53,158 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:40:53,158 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:40:53,159 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:40:53,159 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:40:53,159 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:40:53,159 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:40:53,160 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:40:53,160 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:40:53,160 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:40:53,161 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:40:53,161 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_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 32a779d95d64b7b3ae1a801430dde2c7d15b3372c5d0cdd47679441a42687631 [2021-11-03 05:40:53,569 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:40:53,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:40:53,608 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:40:53,609 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:40:53,609 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:40:53,610 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2021-11-03 05:40:53,689 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/a701d4efd/f870cb2dca8b435ebc7f7e09aa3c4e6a/FLAG58159bae5 [2021-11-03 05:40:54,555 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:40:54,556 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i [2021-11-03 05:40:54,576 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/a701d4efd/f870cb2dca8b435ebc7f7e09aa3c4e6a/FLAG58159bae5 [2021-11-03 05:40:54,727 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/data/a701d4efd/f870cb2dca8b435ebc7f7e09aa3c4e6a [2021-11-03 05:40:54,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:40:54,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:40:54,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:54,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:40:54,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:40:54,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:54" (1/1) ... [2021-11-03 05:40:54,762 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32ad187f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:54, skipping insertion in model container [2021-11-03 05:40:54,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:40:54" (1/1) ... [2021-11-03 05:40:54,772 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:40:54,859 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:40:55,430 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2021-11-03 05:40:55,568 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2021-11-03 05:40:55,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:55,627 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 05:40:55,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:40:55,670 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2021-11-03 05:40:55,739 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2021-11-03 05:40:55,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:55,757 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:40:55,789 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[33021,33034] [2021-11-03 05:40:55,876 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test3-2.i[44590,44603] [2021-11-03 05:40:55,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:40:55,943 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:40:55,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55 WrapperNode [2021-11-03 05:40:55,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:40:55,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:40:55,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:40:55,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:40:55,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:40:56,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:40:56,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:40:56,106 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:40:56,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:40:56,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:40:56,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:40:56,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:40:56,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (1/1) ... [2021-11-03 05:40:56,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:40:56,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:40:56,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:40:56,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:40:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 05:40:56,378 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 05:40:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:40:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:40:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:40:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 05:40:56,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:40:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:40:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 05:40:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:40:56,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:40:56,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:41:04,089 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:41:04,090 INFO L299 CfgBuilder]: Removed 94 assume(true) statements. [2021-11-03 05:41:04,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:04 BoogieIcfgContainer [2021-11-03 05:41:04,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:41:04,094 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:41:04,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:41:04,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:41:04,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:40:54" (1/3) ... [2021-11-03 05:41:04,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490e0f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:04, skipping insertion in model container [2021-11-03 05:41:04,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:40:55" (2/3) ... [2021-11-03 05:41:04,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@490e0f1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:41:04, skipping insertion in model container [2021-11-03 05:41:04,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:41:04" (3/3) ... [2021-11-03 05:41:04,101 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test3-2.i [2021-11-03 05:41:04,107 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:41:04,107 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 05:41:04,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:41:04,159 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:41:04,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 05:41:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand has 231 states, 224 states have (on average 1.71875) internal successors, (385), 230 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:04,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 05:41:04,189 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:04,190 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:04,191 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:04,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:04,197 INFO L85 PathProgramCache]: Analyzing trace with hash 239232295, now seen corresponding path program 1 times [2021-11-03 05:41:04,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:04,211 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [194661224] [2021-11-03 05:41:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:04,212 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:04,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:04,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:04,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:41:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:04,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:41:04,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:04,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:04,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:04,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:04,495 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:04,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [194661224] [2021-11-03 05:41:04,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [194661224] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:04,497 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:04,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:41:04,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565485756] [2021-11-03 05:41:04,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:41:04,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:04,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:41:04,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:41:04,525 INFO L87 Difference]: Start difference. First operand has 231 states, 224 states have (on average 1.71875) internal successors, (385), 230 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) 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) [2021-11-03 05:41:04,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:04,570 INFO L93 Difference]: Finished difference Result 460 states and 768 transitions. [2021-11-03 05:41:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:41:04,572 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 [2021-11-03 05:41:04,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:04,585 INFO L225 Difference]: With dead ends: 460 [2021-11-03 05:41:04,585 INFO L226 Difference]: Without dead ends: 198 [2021-11-03 05:41:04,590 INFO L786 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 [2021-11-03 05:41:04,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2021-11-03 05:41:04,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2021-11-03 05:41:04,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 192 states have (on average 1.3489583333333333) internal successors, (259), 197 states have internal predecessors, (259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:04,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 259 transitions. [2021-11-03 05:41:04,645 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 259 transitions. Word has length 9 [2021-11-03 05:41:04,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:04,645 INFO L470 AbstractCegarLoop]: Abstraction has 198 states and 259 transitions. [2021-11-03 05:41:04,646 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) [2021-11-03 05:41:04,646 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 259 transitions. [2021-11-03 05:41:04,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:41:04,647 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:04,647 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:04,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:04,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:04,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:04,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:04,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1042319138, now seen corresponding path program 1 times [2021-11-03 05:41:04,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:04,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2090065302] [2021-11-03 05:41:04,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:04,864 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:04,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:04,865 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:04,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:41:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:05,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:41:05,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:05,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:05,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:05,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:05,397 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:05,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2090065302] [2021-11-03 05:41:05,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2090065302] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:05,398 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:05,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-03 05:41:05,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151646244] [2021-11-03 05:41:05,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:41:05,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:05,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:41:05,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:41:05,406 INFO L87 Difference]: Start difference. First operand 198 states and 259 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:10,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:10,254 INFO L93 Difference]: Finished difference Result 502 states and 660 transitions. [2021-11-03 05:41:10,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:41:10,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 05:41:10,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:10,259 INFO L225 Difference]: With dead ends: 502 [2021-11-03 05:41:10,259 INFO L226 Difference]: Without dead ends: 304 [2021-11-03 05:41:10,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:41:10,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2021-11-03 05:41:10,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 301. [2021-11-03 05:41:10,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 295 states have (on average 1.3423728813559321) internal successors, (396), 300 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 396 transitions. [2021-11-03 05:41:10,283 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 396 transitions. Word has length 12 [2021-11-03 05:41:10,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:10,283 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 396 transitions. [2021-11-03 05:41:10,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:10,283 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 396 transitions. [2021-11-03 05:41:10,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 05:41:10,285 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:10,285 INFO L513 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] [2021-11-03 05:41:10,309 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:10,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:10,499 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:10,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:10,500 INFO L85 PathProgramCache]: Analyzing trace with hash 627335073, now seen corresponding path program 1 times [2021-11-03 05:41:10,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:10,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1497114997] [2021-11-03 05:41:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:10,501 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:10,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:10,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:10,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:41:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:10,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:41:10,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:10,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:10,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:11,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:11,069 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:11,069 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1497114997] [2021-11-03 05:41:11,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1497114997] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:11,070 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:11,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:41:11,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790142954] [2021-11-03 05:41:11,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:41:11,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:11,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:41:11,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:41:11,072 INFO L87 Difference]: Start difference. First operand 301 states and 396 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) [2021-11-03 05:41:11,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:11,237 INFO L93 Difference]: Finished difference Result 513 states and 674 transitions. [2021-11-03 05:41:11,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:41:11,238 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 [2021-11-03 05:41:11,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:11,240 INFO L225 Difference]: With dead ends: 513 [2021-11-03 05:41:11,241 INFO L226 Difference]: Without dead ends: 344 [2021-11-03 05:41:11,242 INFO L786 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 [2021-11-03 05:41:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-11-03 05:41:11,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 307. [2021-11-03 05:41:11,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 301 states have (on average 1.282392026578073) internal successors, (386), 306 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:11,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 386 transitions. [2021-11-03 05:41:11,266 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 386 transitions. Word has length 44 [2021-11-03 05:41:11,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:11,267 INFO L470 AbstractCegarLoop]: Abstraction has 307 states and 386 transitions. [2021-11-03 05:41:11,267 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) [2021-11-03 05:41:11,268 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 386 transitions. [2021-11-03 05:41:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 05:41:11,270 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:11,271 INFO L513 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] [2021-11-03 05:41:11,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:11,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:11,492 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:11,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:11,492 INFO L85 PathProgramCache]: Analyzing trace with hash -317553387, now seen corresponding path program 1 times [2021-11-03 05:41:11,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:11,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [430177514] [2021-11-03 05:41:11,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:11,494 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:11,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:11,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:11,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:41:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:11,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:41:11,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:11,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:11,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:12,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:12,652 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:12,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [430177514] [2021-11-03 05:41:12,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [430177514] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:12,652 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:12,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 9 [2021-11-03 05:41:12,653 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173444959] [2021-11-03 05:41:12,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 05:41:12,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:12,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 05:41:12,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:41:12,655 INFO L87 Difference]: Start difference. First operand 307 states and 386 transitions. Second operand has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:12,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:12,813 INFO L93 Difference]: Finished difference Result 505 states and 628 transitions. [2021-11-03 05:41:12,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:41:12,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 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 [2021-11-03 05:41:12,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:12,816 INFO L225 Difference]: With dead ends: 505 [2021-11-03 05:41:12,817 INFO L226 Difference]: Without dead ends: 330 [2021-11-03 05:41:12,817 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-03 05:41:12,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-03 05:41:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 295. [2021-11-03 05:41:12,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 289 states have (on average 1.2664359861591696) internal successors, (366), 294 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:12,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 366 transitions. [2021-11-03 05:41:12,833 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 366 transitions. Word has length 44 [2021-11-03 05:41:12,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:12,833 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 366 transitions. [2021-11-03 05:41:12,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:12,834 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 366 transitions. [2021-11-03 05:41:12,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 05:41:12,836 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:12,836 INFO L513 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] [2021-11-03 05:41:12,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:13,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:13,054 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:13,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:13,054 INFO L85 PathProgramCache]: Analyzing trace with hash -575718825, now seen corresponding path program 1 times [2021-11-03 05:41:13,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:13,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1014446869] [2021-11-03 05:41:13,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:13,056 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:13,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:13,057 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:13,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:41:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:13,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:41:13,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:13,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:41:13,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:41:13,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:41:13,544 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-03 05:41:13,545 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 [2021-11-03 05:41:13,649 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-03 05:41:13,650 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 [2021-11-03 05:41:13,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:13,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:13,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:13,990 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:13,990 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1014446869] [2021-11-03 05:41:13,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1014446869] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:13,990 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:13,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-03 05:41:13,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692380634] [2021-11-03 05:41:13,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:41:13,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:13,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:41:13,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:41:13,992 INFO L87 Difference]: Start difference. First operand 295 states and 366 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) [2021-11-03 05:41:23,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:23,778 INFO L93 Difference]: Finished difference Result 620 states and 749 transitions. [2021-11-03 05:41:23,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:41:23,780 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 [2021-11-03 05:41:23,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:23,783 INFO L225 Difference]: With dead ends: 620 [2021-11-03 05:41:23,784 INFO L226 Difference]: Without dead ends: 456 [2021-11-03 05:41:23,785 INFO L786 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 [2021-11-03 05:41:23,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2021-11-03 05:41:23,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 294. [2021-11-03 05:41:23,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 288 states have (on average 1.2638888888888888) internal successors, (364), 293 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:23,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 364 transitions. [2021-11-03 05:41:23,801 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 364 transitions. Word has length 44 [2021-11-03 05:41:23,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:23,802 INFO L470 AbstractCegarLoop]: Abstraction has 294 states and 364 transitions. [2021-11-03 05:41:23,802 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) [2021-11-03 05:41:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 364 transitions. [2021-11-03 05:41:23,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 05:41:23,805 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:23,806 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:23,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 05:41:24,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:24,023 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:24,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:24,023 INFO L85 PathProgramCache]: Analyzing trace with hash 474525043, now seen corresponding path program 1 times [2021-11-03 05:41:24,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:24,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [798710713] [2021-11-03 05:41:24,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:24,025 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:24,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:24,030 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:24,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:41:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:24,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:41:24,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:24,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:24,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:24,970 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:24,970 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:24,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [798710713] [2021-11-03 05:41:24,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [798710713] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:24,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:24,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:41:24,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288600523] [2021-11-03 05:41:24,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:41:24,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:24,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:41:24,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:41:24,973 INFO L87 Difference]: Start difference. First operand 294 states and 364 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:25,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:25,125 INFO L93 Difference]: Finished difference Result 587 states and 733 transitions. [2021-11-03 05:41:25,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:41:25,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 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 71 [2021-11-03 05:41:25,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:25,129 INFO L225 Difference]: With dead ends: 587 [2021-11-03 05:41:25,129 INFO L226 Difference]: Without dead ends: 302 [2021-11-03 05:41:25,130 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:41:25,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-11-03 05:41:25,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 300. [2021-11-03 05:41:25,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 294 states have (on average 1.2040816326530612) internal successors, (354), 299 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 354 transitions. [2021-11-03 05:41:25,143 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 354 transitions. Word has length 71 [2021-11-03 05:41:25,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:25,145 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 354 transitions. [2021-11-03 05:41:25,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:25,145 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 354 transitions. [2021-11-03 05:41:25,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-03 05:41:25,151 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:25,151 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:25,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:25,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:25,370 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:25,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash -147792665, now seen corresponding path program 1 times [2021-11-03 05:41:25,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:25,372 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569981906] [2021-11-03 05:41:25,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:25,372 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:25,372 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:25,373 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:25,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 05:41:25,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:25,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:41:25,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:26,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:26,010 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:26,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:41:26,241 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:26,242 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1569981906] [2021-11-03 05:41:26,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1569981906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:26,242 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:41:26,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 05:41:26,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864107407] [2021-11-03 05:41:26,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:41:26,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:26,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:41:26,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:41:26,244 INFO L87 Difference]: Start difference. First operand 300 states and 354 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:26,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:26,316 INFO L93 Difference]: Finished difference Result 558 states and 665 transitions. [2021-11-03 05:41:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:41:26,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 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 71 [2021-11-03 05:41:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:26,320 INFO L225 Difference]: With dead ends: 558 [2021-11-03 05:41:26,321 INFO L226 Difference]: Without dead ends: 303 [2021-11-03 05:41:26,325 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:41:26,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-03 05:41:26,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2021-11-03 05:41:26,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 297 states have (on average 1.202020202020202) internal successors, (357), 302 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:26,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 357 transitions. [2021-11-03 05:41:26,341 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 357 transitions. Word has length 71 [2021-11-03 05:41:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:26,342 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 357 transitions. [2021-11-03 05:41:26,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:26,342 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 357 transitions. [2021-11-03 05:41:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 05:41:26,343 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:26,344 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-03 05:41:26,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:26,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:26,558 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:26,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:26,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1065048653, now seen corresponding path program 1 times [2021-11-03 05:41:26,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:26,559 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16216089] [2021-11-03 05:41:26,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:26,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:26,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:26,561 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:26,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 05:41:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:27,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:41:27,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:27,316 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:27,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:27,587 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:27,587 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:27,587 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16216089] [2021-11-03 05:41:27,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16216089] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:27,588 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1915943510] [2021-11-03 05:41:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:27,588 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:27,588 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:41:27,591 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:41:27,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-03 05:41:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:28,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:41:28,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:28,550 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:28,730 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:28,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1915943510] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:28,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1743031843] [2021-11-03 05:41:28,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:28,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:41:28,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:28,733 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:41:28,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 05:41:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:29,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:41:29,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:29,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:41:29,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:41:29,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 05:41:29,511 INFO L354 Elim1Store]: treesize reduction 166, result has 13.5 percent of original size [2021-11-03 05:41:29,511 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 [2021-11-03 05:41:29,617 INFO L354 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2021-11-03 05:41:29,618 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 [2021-11-03 05:41:29,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:41:29,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:29,929 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 05:41:29,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1743031843] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:29,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-11-03 05:41:29,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5, 5, 5] total 12 [2021-11-03 05:41:29,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965200295] [2021-11-03 05:41:29,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:41:29,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:29,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:41:29,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:41:29,931 INFO L87 Difference]: Start difference. First operand 303 states and 357 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:36,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:36,549 INFO L93 Difference]: Finished difference Result 465 states and 547 transitions. [2021-11-03 05:41:36,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:41:36,551 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 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 74 [2021-11-03 05:41:36,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:36,553 INFO L225 Difference]: With dead ends: 465 [2021-11-03 05:41:36,553 INFO L226 Difference]: Without dead ends: 440 [2021-11-03 05:41:36,554 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-03 05:41:36,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2021-11-03 05:41:36,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 305. [2021-11-03 05:41:36,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 299 states have (on average 1.2006688963210703) internal successors, (359), 304 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 359 transitions. [2021-11-03 05:41:36,569 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 359 transitions. Word has length 74 [2021-11-03 05:41:36,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:36,569 INFO L470 AbstractCegarLoop]: Abstraction has 305 states and 359 transitions. [2021-11-03 05:41:36,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 359 transitions. [2021-11-03 05:41:36,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-03 05:41:36,571 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:36,571 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:36,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:36,796 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:36,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:37,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:37,182 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:37,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:37,182 INFO L85 PathProgramCache]: Analyzing trace with hash -786181332, now seen corresponding path program 1 times [2021-11-03 05:41:37,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:37,183 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [464871256] [2021-11-03 05:41:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:37,183 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:37,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:37,184 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:37,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 05:41:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:37,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:41:37,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:38,052 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:38,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:38,406 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:38,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [464871256] [2021-11-03 05:41:38,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [464871256] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:38,406 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1337356153] [2021-11-03 05:41:38,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:38,406 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:38,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:41:38,409 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:41:38,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2021-11-03 05:41:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:39,096 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:41:39,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:39,571 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:41:39,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:39,999 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 05:41:39,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1337356153] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:41:39,999 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:41:39,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [5, 5] total 10 [2021-11-03 05:41:39,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671075070] [2021-11-03 05:41:40,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:41:40,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:40,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:41:40,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:41:40,001 INFO L87 Difference]: Start difference. First operand 305 states and 359 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:43,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:43,908 INFO L93 Difference]: Finished difference Result 692 states and 822 transitions. [2021-11-03 05:41:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:41:43,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 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 106 [2021-11-03 05:41:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:43,912 INFO L225 Difference]: With dead ends: 692 [2021-11-03 05:41:43,912 INFO L226 Difference]: Without dead ends: 432 [2021-11-03 05:41:43,913 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-11-03 05:41:43,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-11-03 05:41:43,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 380. [2021-11-03 05:41:43,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 374 states have (on average 1.2005347593582887) internal successors, (449), 379 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:43,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 449 transitions. [2021-11-03 05:41:43,930 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 449 transitions. Word has length 106 [2021-11-03 05:41:43,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:43,931 INFO L470 AbstractCegarLoop]: Abstraction has 380 states and 449 transitions. [2021-11-03 05:41:43,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:43,931 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 449 transitions. [2021-11-03 05:41:43,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-03 05:41:43,933 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:43,933 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:43,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:44,150 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:44,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:41:44,338 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:44,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:44,338 INFO L85 PathProgramCache]: Analyzing trace with hash 530496366, now seen corresponding path program 1 times [2021-11-03 05:41:44,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:44,339 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564101537] [2021-11-03 05:41:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:44,339 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:44,339 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:44,340 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:44,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 05:41:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:44,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:41:44,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:45,294 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:45,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:45,646 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:45,646 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:45,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564101537] [2021-11-03 05:41:45,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564101537] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:45,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [60465218] [2021-11-03 05:41:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:45,647 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:45,647 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:41:45,661 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:41:45,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2021-11-03 05:41:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:46,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:41:46,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:46,897 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:46,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:47,193 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:41:47,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [60465218] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:47,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749398499] [2021-11-03 05:41:47,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:41:47,194 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:41:47,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:47,209 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:41:47,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-03 05:41:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:41:47,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:41:47,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:48,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:41:48,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-03 05:41:48,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749398499] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:48,553 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:41:48,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 4, 4] total 10 [2021-11-03 05:41:48,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116442034] [2021-11-03 05:41:48,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-03 05:41:48,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:48,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-03 05:41:48,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2021-11-03 05:41:48,555 INFO L87 Difference]: Start difference. First operand 380 states and 449 transitions. Second operand has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:48,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:41:48,896 INFO L93 Difference]: Finished difference Result 718 states and 859 transitions. [2021-11-03 05:41:48,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-03 05:41:48,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 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 113 [2021-11-03 05:41:48,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:41:48,900 INFO L225 Difference]: With dead ends: 718 [2021-11-03 05:41:48,900 INFO L226 Difference]: Without dead ends: 388 [2021-11-03 05:41:48,901 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 676 GetRequests, 666 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:41:48,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2021-11-03 05:41:48,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 388. [2021-11-03 05:41:48,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 382 states have (on average 1.1963350785340314) internal successors, (457), 387 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 457 transitions. [2021-11-03 05:41:48,923 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 457 transitions. Word has length 113 [2021-11-03 05:41:48,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:41:48,923 INFO L470 AbstractCegarLoop]: Abstraction has 388 states and 457 transitions. [2021-11-03 05:41:48,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 12.7) internal successors, (127), 10 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:41:48,924 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 457 transitions. [2021-11-03 05:41:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-03 05:41:48,925 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:41:48,926 INFO L513 BasicCegarLoop]: trace histogram [6, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:41:48,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:49,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-11-03 05:41:49,353 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:41:49,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:49,549 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:41:49,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:41:49,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1097324242, now seen corresponding path program 2 times [2021-11-03 05:41:49,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:41:49,550 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [749757064] [2021-11-03 05:41:49,550 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:41:49,550 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:41:49,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:41:49,551 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:41:49,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 05:41:50,648 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:41:50,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:41:50,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:41:50,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 05:41:51,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:51,761 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 05:41:51,762 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:41:51,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [749757064] [2021-11-03 05:41:51,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [749757064] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:51,762 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [237297758] [2021-11-03 05:41:51,762 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:41:51,762 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:41:51,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:41:51,763 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:41:51,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-11-03 05:41:53,373 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:41:53,373 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:41:53,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:41:53,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:53,770 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 05:41:53,770 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 05:41:54,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [237297758] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:54,089 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306174201] [2021-11-03 05:41:54,089 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:41:54,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:41:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:41:54,090 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:41:54,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-03 05:41:55,104 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:41:55,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:41:55,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 05:41:55,130 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:41:55,680 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-03 05:41:55,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:41:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-03 05:41:56,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306174201] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:41:56,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 05:41:56,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 8, 8] total 27 [2021-11-03 05:41:56,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674425761] [2021-11-03 05:41:56,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-03 05:41:56,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:41:56,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-03 05:41:56,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=490, Unknown=0, NotChecked=0, Total=702 [2021-11-03 05:41:56,734 INFO L87 Difference]: Start difference. First operand 388 states and 457 transitions. Second operand has 27 states, 27 states have (on average 5.296296296296297) internal successors, (143), 27 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:01,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:01,313 INFO L93 Difference]: Finished difference Result 1066 states and 1283 transitions. [2021-11-03 05:42:01,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 05:42:01,316 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.296296296296297) internal successors, (143), 27 states have internal predecessors, (143), 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 121 [2021-11-03 05:42:01,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:01,321 INFO L225 Difference]: With dead ends: 1066 [2021-11-03 05:42:01,321 INFO L226 Difference]: Without dead ends: 732 [2021-11-03 05:42:01,323 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=386, Invalid=736, Unknown=0, NotChecked=0, Total=1122 [2021-11-03 05:42:01,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states. [2021-11-03 05:42:01,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 410. [2021-11-03 05:42:01,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 404 states have (on average 1.188118811881188) internal successors, (480), 409 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 480 transitions. [2021-11-03 05:42:01,359 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 480 transitions. Word has length 121 [2021-11-03 05:42:01,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:01,360 INFO L470 AbstractCegarLoop]: Abstraction has 410 states and 480 transitions. [2021-11-03 05:42:01,360 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.296296296296297) internal successors, (143), 27 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:01,360 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 480 transitions. [2021-11-03 05:42:01,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-03 05:42:01,362 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:01,362 INFO L513 BasicCegarLoop]: trace histogram [14, 13, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:01,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2021-11-03 05:42:01,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:01,786 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-11-03 05:42:01,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 05:42:01,978 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:42:01,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:01,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1558698834, now seen corresponding path program 3 times [2021-11-03 05:42:01,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:01,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591829995] [2021-11-03 05:42:01,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:42:01,979 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:01,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:01,981 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:01,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-03 05:42:07,730 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-03 05:42:07,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:42:07,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:42:07,807 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:08,473 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-03 05:42:08,473 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-03 05:42:10,140 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:10,140 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [591829995] [2021-11-03 05:42:10,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [591829995] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:42:10,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1887611266] [2021-11-03 05:42:10,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:42:10,141 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:42:10,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:42:10,142 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:42:10,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2021-11-03 05:43:17,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-11-03 05:43:17,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:43:17,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:43:17,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:17,894 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-03 05:43:17,894 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:43:21,110 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-11-03 05:43:21,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1887611266] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:43:21,110 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367422684] [2021-11-03 05:43:21,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:43:21,110 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:43:21,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:43:21,112 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:43:21,118 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_120cbc7f-19e6-4cf5-8ffc-37ef61507484/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process