./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:28:30,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:28:30,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:28:30,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:28:30,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:28:30,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:28:30,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:28:30,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:28:30,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:28:30,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:28:30,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:28:30,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:28:30,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:28:30,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:28:30,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:28:30,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:28:30,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:28:30,738 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:28:30,740 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:28:30,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:28:30,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:28:30,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:28:30,753 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:28:30,754 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:28:30,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:28:30,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:28:30,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:28:30,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:28:30,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:28:30,767 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:28:30,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:28:30,768 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:28:30,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:28:30,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:28:30,772 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:28:30,772 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:28:30,773 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:28:30,773 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:28:30,773 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:28:30,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:28:30,775 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:28:30,775 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:28:30,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:28:30,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:28:30,822 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:28:30,822 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:28:30,822 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:28:30,822 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:28:30,822 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:28:30,822 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:28:30,823 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:28:30,823 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:28:30,823 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:28:30,823 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:28:30,823 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:28:30,824 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:28:30,824 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:28:30,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:28:30,829 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:28:30,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:28:30,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:28:30,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:28:30,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:28:30,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:28:30,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:28:30,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:28:30,831 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:28:30,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:28:30,831 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:28:30,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:28:30,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:28:30,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:28:30,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:28:30,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:28:30,834 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:28:30,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:28:30,835 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:28:30,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:28:30,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:28:30,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:28:30,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:28:30,836 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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f [2021-11-03 04:28:31,106 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:28:31,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:28:31,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:28:31,134 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:28:31,135 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:28:31,136 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-11-03 04:28:31,206 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/d8cd556b0/c62fdc5777e644e891f5fd4c949fdd83/FLAGaccd3a537 [2021-11-03 04:28:31,672 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:28:31,673 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-11-03 04:28:31,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/d8cd556b0/c62fdc5777e644e891f5fd4c949fdd83/FLAGaccd3a537 [2021-11-03 04:28:31,978 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/d8cd556b0/c62fdc5777e644e891f5fd4c949fdd83 [2021-11-03 04:28:31,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:28:31,982 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:28:31,983 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:28:31,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:28:31,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:28:31,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:28:31" (1/1) ... [2021-11-03 04:28:31,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56f1629f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:31, skipping insertion in model container [2021-11-03 04:28:31,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:28:31" (1/1) ... [2021-11-03 04:28:31,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:28:32,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:28:32,391 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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2021-11-03 04:28:32,495 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:28:32,504 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 04:28:32,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@268cbbea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:32, skipping insertion in model container [2021-11-03 04:28:32,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:28:32,505 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:28:32,507 INFO L168 Benchmark]: Toolchain (without parser) took 524.49 ms. Allocated memory is still 125.8 MB. Free memory was 83.6 MB in the beginning and 92.1 MB in the end (delta: -8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:28:32,508 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 125.8 MB. Free memory is still 102.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:28:32,509 INFO L168 Benchmark]: CACSL2BoogieTranslator took 522.08 ms. Allocated memory is still 125.8 MB. Free memory was 83.4 MB in the beginning and 92.7 MB in the end (delta: -9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:28:32,510 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 125.8 MB. Free memory is still 102.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 522.08 ms. Allocated memory is still 125.8 MB. Free memory was 83.4 MB in the beginning and 92.7 MB in the end (delta: -9.3 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: 751]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:28:34,647 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:28:34,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:28:34,689 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:28:34,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:28:34,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:28:34,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:28:34,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:28:34,707 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:28:34,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:28:34,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:28:34,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:28:34,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:28:34,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:28:34,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:28:34,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:28:34,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:28:34,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:28:34,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:28:34,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:28:34,741 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:28:34,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:28:34,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:28:34,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:28:34,755 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:28:34,755 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:28:34,756 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:28:34,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:28:34,758 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:28:34,759 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:28:34,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:28:34,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:28:34,763 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:28:34,764 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:28:34,765 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:28:34,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:28:34,766 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:28:34,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:28:34,767 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:28:34,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:28:34,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:28:34,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:28:34,804 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:28:34,804 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:28:34,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:28:34,806 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:28:34,806 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:28:34,806 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:28:34,807 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:28:34,807 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:28:34,807 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:28:34,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:28:34,809 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:28:34,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:28:34,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:28:34,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:28:34,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:28:34,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:28:34,811 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:28:34,811 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:28:34,811 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:28:34,811 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:28:34,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:28:34,812 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:28:34,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:28:34,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:28:34,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:28:34,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:28:34,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:28:34,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:28:34,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:28:34,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:28:34,814 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:28:34,814 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:28:34,815 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:28:34,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:28:34,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:28:34,816 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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72c3cbe0b435a963730c7c79c0d825f3c978c53ad7cc61822ef9417e2e6ee67f [2021-11-03 04:28:35,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:28:35,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:28:35,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:28:35,199 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:28:35,200 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:28:35,201 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-11-03 04:28:35,266 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/2fadd2b08/7c35689da6d945b78786140fad0a641c/FLAG10f87245f [2021-11-03 04:28:35,838 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:28:35,838 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i [2021-11-03 04:28:35,860 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/2fadd2b08/7c35689da6d945b78786140fad0a641c/FLAG10f87245f [2021-11-03 04:28:36,067 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/data/2fadd2b08/7c35689da6d945b78786140fad0a641c [2021-11-03 04:28:36,069 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:28:36,071 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:28:36,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:28:36,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:28:36,075 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:28:36,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:36,077 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b951d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36, skipping insertion in model container [2021-11-03 04:28:36,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:36,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:28:36,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:28:36,541 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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2021-11-03 04:28:36,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:28:36,626 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:28:36,637 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:28:36,657 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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2021-11-03 04:28:36,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:28:36,766 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:28:36,807 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_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test1-1.i[33021,33034] [2021-11-03 04:28:36,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:28:36,925 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:28:36,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36 WrapperNode [2021-11-03 04:28:36,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:28:36,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:28:36,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:28:36,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:28:36,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:36,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:28:37,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:28:37,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:28:37,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:28:37,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:28:37,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:28:37,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:28:37,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:28:37,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (1/1) ... [2021-11-03 04:28:37,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:28:37,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:28:37,161 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:28:37,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:28:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:28:37,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:28:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:28:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:28:37,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:28:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:28:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:28:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:28:37,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:28:37,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:28:37,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:28:42,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:28:42,755 INFO L299 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-03 04:28:42,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:28:42 BoogieIcfgContainer [2021-11-03 04:28:42,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:28:42,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:28:42,762 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:28:42,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:28:42,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:28:36" (1/3) ... [2021-11-03 04:28:42,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ca03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:28:42, skipping insertion in model container [2021-11-03 04:28:42,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:28:36" (2/3) ... [2021-11-03 04:28:42,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7221ca03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:28:42, skipping insertion in model container [2021-11-03 04:28:42,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:28:42" (3/3) ... [2021-11-03 04:28:42,770 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test1-1.i [2021-11-03 04:28:42,775 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:28:42,776 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-03 04:28:42,837 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:28:42,855 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 04:28:42,855 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-03 04:28:42,879 INFO L276 IsEmpty]: Start isEmpty. Operand has 138 states, 127 states have (on average 1.7401574803149606) internal successors, (221), 137 states have internal predecessors, (221), 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 04:28:42,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:28:42,884 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:42,884 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:42,885 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:42,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:42,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1407226647, now seen corresponding path program 1 times [2021-11-03 04:28:42,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:42,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1988100396] [2021-11-03 04:28:42,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:42,908 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:42,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:42,911 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:42,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:28:43,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:43,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:28:43,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:43,120 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 04:28:43,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:43,149 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 04:28:43,150 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:43,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1988100396] [2021-11-03 04:28:43,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1988100396] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:43,152 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:43,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:28:43,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143422841] [2021-11-03 04:28:43,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:28:43,159 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:43,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:28:43,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:28:43,179 INFO L87 Difference]: Start difference. First operand has 138 states, 127 states have (on average 1.7401574803149606) internal successors, (221), 137 states have internal predecessors, (221), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:28:43,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:43,228 INFO L93 Difference]: Finished difference Result 274 states and 440 transitions. [2021-11-03 04:28:43,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:28:43,229 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 04:28:43,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:43,243 INFO L225 Difference]: With dead ends: 274 [2021-11-03 04:28:43,243 INFO L226 Difference]: Without dead ends: 134 [2021-11-03 04:28:43,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 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 04:28:43,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-11-03 04:28:43,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2021-11-03 04:28:43,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 124 states have (on average 1.3870967741935485) internal successors, (172), 133 states have internal predecessors, (172), 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 04:28:43,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 172 transitions. [2021-11-03 04:28:43,304 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 172 transitions. Word has length 8 [2021-11-03 04:28:43,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:43,305 INFO L470 AbstractCegarLoop]: Abstraction has 134 states and 172 transitions. [2021-11-03 04:28:43,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:28:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 172 transitions. [2021-11-03 04:28:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:28:43,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:43,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:43,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:43,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:43,520 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:43,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash 569968710, now seen corresponding path program 1 times [2021-11-03 04:28:43,522 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:43,522 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950691041] [2021-11-03 04:28:43,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:43,522 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:43,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:43,526 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:43,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:28:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:43,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:28:43,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:43,692 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 04:28:43,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:43,724 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 04:28:43,725 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:43,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950691041] [2021-11-03 04:28:43,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950691041] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:43,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:43,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:28:43,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555694625] [2021-11-03 04:28:43,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:28:43,727 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:43,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:28:43,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:28:43,728 INFO L87 Difference]: Start difference. First operand 134 states and 172 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 04:28:43,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:43,926 INFO L93 Difference]: Finished difference Result 267 states and 344 transitions. [2021-11-03 04:28:43,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:28:43,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 04:28:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:43,929 INFO L225 Difference]: With dead ends: 267 [2021-11-03 04:28:43,929 INFO L226 Difference]: Without dead ends: 222 [2021-11-03 04:28:43,930 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:28:43,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-11-03 04:28:43,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 222. [2021-11-03 04:28:43,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 212 states have (on average 1.3537735849056605) internal successors, (287), 221 states have internal predecessors, (287), 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 04:28:43,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 287 transitions. [2021-11-03 04:28:43,947 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 287 transitions. Word has length 8 [2021-11-03 04:28:43,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:43,947 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 287 transitions. [2021-11-03 04:28:43,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 04:28:43,947 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 287 transitions. [2021-11-03 04:28:43,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 04:28:43,952 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:43,953 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:43,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:44,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:44,165 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:44,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:44,166 INFO L85 PathProgramCache]: Analyzing trace with hash 2050695974, now seen corresponding path program 1 times [2021-11-03 04:28:44,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:44,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1599452458] [2021-11-03 04:28:44,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:44,169 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:44,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:44,170 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:44,171 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:28:44,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:44,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:28:44,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:44,897 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-03 04:28:44,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:45,263 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-11-03 04:28:45,264 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:45,264 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1599452458] [2021-11-03 04:28:45,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1599452458] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:45,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:45,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:28:45,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040518458] [2021-11-03 04:28:45,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:28:45,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:45,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:28:45,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:28:45,268 INFO L87 Difference]: Start difference. First operand 222 states and 287 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 04:28:45,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:45,395 INFO L93 Difference]: Finished difference Result 444 states and 580 transitions. [2021-11-03 04:28:45,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:28:45,396 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 110 [2021-11-03 04:28:45,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:45,398 INFO L225 Difference]: With dead ends: 444 [2021-11-03 04:28:45,398 INFO L226 Difference]: Without dead ends: 230 [2021-11-03 04:28:45,399 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 215 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 04:28:45,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-11-03 04:28:45,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 228. [2021-11-03 04:28:45,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 218 states have (on average 1.2706422018348624) internal successors, (277), 227 states have internal predecessors, (277), 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 04:28:45,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 277 transitions. [2021-11-03 04:28:45,416 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 277 transitions. Word has length 110 [2021-11-03 04:28:45,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:45,417 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 277 transitions. [2021-11-03 04:28:45,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 5 states have internal predecessors, (71), 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 04:28:45,418 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 277 transitions. [2021-11-03 04:28:45,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 04:28:45,420 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:45,420 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:45,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:28:45,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:45,637 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1601617830, now seen corresponding path program 1 times [2021-11-03 04:28:45,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:45,639 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [158883917] [2021-11-03 04:28:45,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:45,640 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:45,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:45,641 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:45,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:28:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:46,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 04:28:46,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:46,477 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-03 04:28:46,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:47,209 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-03 04:28:47,210 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:47,210 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [158883917] [2021-11-03 04:28:47,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [158883917] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:47,210 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:47,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 9 [2021-11-03 04:28:47,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440034052] [2021-11-03 04:28:47,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-03 04:28:47,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:47,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-03 04:28:47,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:28:47,213 INFO L87 Difference]: Start difference. First operand 228 states and 277 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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 04:28:47,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:47,309 INFO L93 Difference]: Finished difference Result 413 states and 507 transitions. [2021-11-03 04:28:47,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:28:47,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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 110 [2021-11-03 04:28:47,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:47,312 INFO L225 Difference]: With dead ends: 413 [2021-11-03 04:28:47,312 INFO L226 Difference]: Without dead ends: 216 [2021-11-03 04:28:47,316 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:28:47,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-03 04:28:47,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-03 04:28:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 206 states have (on average 1.2475728155339805) internal successors, (257), 215 states have internal predecessors, (257), 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 04:28:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2021-11-03 04:28:47,341 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 110 [2021-11-03 04:28:47,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:47,342 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2021-11-03 04:28:47,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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 04:28:47,342 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2021-11-03 04:28:47,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-11-03 04:28:47,344 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:47,356 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:47,379 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:47,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:47,573 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:47,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:47,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1357916902, now seen corresponding path program 1 times [2021-11-03 04:28:47,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:47,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [801727556] [2021-11-03 04:28:47,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:47,576 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:47,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:47,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:47,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:28:48,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:48,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:28:48,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:28:48,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-03 04:28:49,180 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:49,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [801727556] [2021-11-03 04:28:49,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [801727556] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:49,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:49,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:28:49,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551702667] [2021-11-03 04:28:49,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:28:49,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:49,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:28:49,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:28:49,182 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 04:28:49,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:49,699 INFO L93 Difference]: Finished difference Result 383 states and 462 transitions. [2021-11-03 04:28:49,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:28:49,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 110 [2021-11-03 04:28:49,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:49,701 INFO L225 Difference]: With dead ends: 383 [2021-11-03 04:28:49,701 INFO L226 Difference]: Without dead ends: 214 [2021-11-03 04:28:49,702 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:28:49,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-03 04:28:49,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-03 04:28:49,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 204 states have (on average 1.2450980392156863) internal successors, (254), 213 states have internal predecessors, (254), 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 04:28:49,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 254 transitions. [2021-11-03 04:28:49,713 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 254 transitions. Word has length 110 [2021-11-03 04:28:49,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:49,714 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 254 transitions. [2021-11-03 04:28:49,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 04:28:49,714 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 254 transitions. [2021-11-03 04:28:49,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-03 04:28:49,716 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:49,716 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:49,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:49,932 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:49,933 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:49,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:49,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1177328342, now seen corresponding path program 1 times [2021-11-03 04:28:49,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:49,934 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [840605932] [2021-11-03 04:28:49,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:49,934 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:49,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:49,935 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:49,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:28:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:50,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:28:50,506 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 04:28:50,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:51,064 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-11-03 04:28:51,065 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:51,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [840605932] [2021-11-03 04:28:51,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [840605932] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:51,065 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:51,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:28:51,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932111286] [2021-11-03 04:28:51,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:28:51,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:51,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:28:51,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:28:51,067 INFO L87 Difference]: Start difference. First operand 214 states and 254 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 04:28:51,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:51,130 INFO L93 Difference]: Finished difference Result 393 states and 478 transitions. [2021-11-03 04:28:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:28:51,133 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 117 [2021-11-03 04:28:51,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:51,135 INFO L225 Difference]: With dead ends: 393 [2021-11-03 04:28:51,135 INFO L226 Difference]: Without dead ends: 220 [2021-11-03 04:28:51,135 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 230 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 04:28:51,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2021-11-03 04:28:51,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2021-11-03 04:28:51,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 210 states have (on average 1.2380952380952381) internal successors, (260), 219 states have internal predecessors, (260), 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 04:28:51,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 260 transitions. [2021-11-03 04:28:51,145 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 260 transitions. Word has length 117 [2021-11-03 04:28:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:51,145 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 260 transitions. [2021-11-03 04:28:51,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 04:28:51,146 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 260 transitions. [2021-11-03 04:28:51,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-03 04:28:51,147 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:51,147 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:51,170 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:51,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:51,366 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:51,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:51,367 INFO L85 PathProgramCache]: Analyzing trace with hash 1351948363, now seen corresponding path program 1 times [2021-11-03 04:28:51,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:51,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594264847] [2021-11-03 04:28:51,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:51,368 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:51,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:51,370 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:51,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:28:51,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:51,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:28:51,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:52,294 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:28:52,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:52,661 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:28:52,662 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:52,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594264847] [2021-11-03 04:28:52,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594264847] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:28:52,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1466017885] [2021-11-03 04:28:52,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:52,663 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:28:52,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:28:52,672 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:28:52,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2021-11-03 04:28:53,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:53,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:28:53,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:28:53,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:54,061 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-03 04:28:54,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1466017885] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:28:54,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730246171] [2021-11-03 04:28:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:54,061 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:28:54,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:28:54,063 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:28:54,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 04:28:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:54,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:28:54,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:55,298 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 04:28:55,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:55,880 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-03 04:28:55,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730246171] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:28:55,880 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:28:55,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 5] total 14 [2021-11-03 04:28:55,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291772718] [2021-11-03 04:28:55,882 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 04:28:55,882 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:55,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 04:28:55,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:28:55,883 INFO L87 Difference]: Start difference. First operand 220 states and 260 transitions. Second operand has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 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 04:28:59,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:59,343 INFO L93 Difference]: Finished difference Result 781 states and 960 transitions. [2021-11-03 04:28:59,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-11-03 04:28:59,344 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 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 120 [2021-11-03 04:28:59,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:59,347 INFO L225 Difference]: With dead ends: 781 [2021-11-03 04:28:59,347 INFO L226 Difference]: Without dead ends: 604 [2021-11-03 04:28:59,349 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 754 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 751 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=689, Invalid=1963, Unknown=0, NotChecked=0, Total=2652 [2021-11-03 04:28:59,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2021-11-03 04:28:59,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 604. [2021-11-03 04:28:59,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 594 states have (on average 1.1851851851851851) internal successors, (704), 603 states have internal predecessors, (704), 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 04:28:59,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 704 transitions. [2021-11-03 04:28:59,375 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 704 transitions. Word has length 120 [2021-11-03 04:28:59,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:59,376 INFO L470 AbstractCegarLoop]: Abstraction has 604 states and 704 transitions. [2021-11-03 04:28:59,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.071428571428573) internal successors, (337), 14 states have internal predecessors, (337), 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 04:28:59,376 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 704 transitions. [2021-11-03 04:28:59,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-11-03 04:28:59,380 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:59,381 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:59,388 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2021-11-03 04:28:59,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:28:59,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-03 04:28:59,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:28:59,989 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:28:59,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:59,990 INFO L85 PathProgramCache]: Analyzing trace with hash -574302741, now seen corresponding path program 2 times [2021-11-03 04:28:59,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:59,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205197219] [2021-11-03 04:28:59,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:28:59,991 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:59,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:59,992 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:59,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:29:01,224 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 04:29:01,224 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:29:01,292 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:29:01,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:29:02,200 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:29:02,200 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:29:03,329 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:29:03,329 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:29:03,329 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205197219] [2021-11-03 04:29:03,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205197219] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:29:03,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1671353916] [2021-11-03 04:29:03,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:29:03,330 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 04:29:03,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 04:29:03,346 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 04:29:03,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2021-11-03 04:29:05,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 04:29:05,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:29:05,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-03 04:29:05,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:29:05,768 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:29:05,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:29:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 21 refuted. 0 times theorem prover too weak. 586 trivial. 0 not checked. [2021-11-03 04:29:06,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1671353916] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:29:06,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1268115258] [2021-11-03 04:29:06,510 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:29:06,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:29:06,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:29:06,517 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:29:06,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 04:29:07,883 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 04:29:07,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:29:07,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:29:07,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:29:08,729 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-03 04:29:08,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:29:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 181 proven. 6 refuted. 0 times theorem prover too weak. 601 trivial. 0 not checked. [2021-11-03 04:29:09,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1268115258] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 04:29:09,870 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-11-03 04:29:09,871 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9, 9, 6, 6] total 23 [2021-11-03 04:29:09,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688894127] [2021-11-03 04:29:09,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-03 04:29:09,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:29:09,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-03 04:29:09,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=350, Unknown=0, NotChecked=0, Total=506 [2021-11-03 04:29:09,874 INFO L87 Difference]: Start difference. First operand 604 states and 704 transitions. Second operand has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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 04:29:12,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:29:12,633 INFO L93 Difference]: Finished difference Result 1733 states and 2131 transitions. [2021-11-03 04:29:12,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-11-03 04:29:12,635 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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 330 [2021-11-03 04:29:12,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:29:12,642 INFO L225 Difference]: With dead ends: 1733 [2021-11-03 04:29:12,642 INFO L226 Difference]: Without dead ends: 1176 [2021-11-03 04:29:12,644 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1988 GetRequests, 1960 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=311, Invalid=559, Unknown=0, NotChecked=0, Total=870 [2021-11-03 04:29:12,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1176 states. [2021-11-03 04:29:12,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1176 to 724. [2021-11-03 04:29:12,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 724 states, 714 states have (on average 1.1624649859943978) internal successors, (830), 723 states have internal predecessors, (830), 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 04:29:12,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 830 transitions. [2021-11-03 04:29:12,690 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 830 transitions. Word has length 330 [2021-11-03 04:29:12,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:29:12,691 INFO L470 AbstractCegarLoop]: Abstraction has 724 states and 830 transitions. [2021-11-03 04:29:12,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 5.782608695652174) internal successors, (133), 23 states have internal predecessors, (133), 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 04:29:12,691 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 830 transitions. [2021-11-03 04:29:12,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2021-11-03 04:29:12,697 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:29:12,698 INFO L513 BasicCegarLoop]: trace histogram [14, 11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:29:12,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 04:29:12,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-03 04:29:13,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:29:13,321 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt [2021-11-03 04:29:13,321 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-03 04:29:13,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:29:13,322 INFO L85 PathProgramCache]: Analyzing trace with hash 890409067, now seen corresponding path program 3 times [2021-11-03 04:29:13,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:29:13,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [726807763] [2021-11-03 04:29:13,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:29:13,324 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:29:13,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:29:13,324 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:29:13,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a6d3180-80bd-4ac5-9df9-38a1cb6df342/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process