./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/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_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/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 64bit --witnessprinter.graph.data.programhash 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:17:02,759 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:17:02,761 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:17:02,812 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:17:02,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:17:02,814 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:17:02,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:17:02,818 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:17:02,820 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:17:02,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:17:02,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:17:02,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:17:02,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:17:02,825 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:17:02,827 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:17:02,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:17:02,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:17:02,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:17:02,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:17:02,836 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:17:02,838 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:17:02,840 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:17:02,842 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:17:02,843 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:17:02,847 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:17:02,847 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:17:02,848 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:17:02,849 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:17:02,850 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:17:02,851 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:17:02,852 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:17:02,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:17:02,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:17:02,855 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:17:02,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:17:02,857 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:17:02,858 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:17:02,858 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:17:02,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:17:02,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:17:02,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:17:02,862 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-03 04:17:02,885 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:17:02,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:17:02,887 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:17:02,887 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:17:02,888 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:17:02,888 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:17:02,889 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:17:02,889 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:17:02,889 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:17:02,890 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:17:02,890 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:17:02,890 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:17:02,891 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:17:02,891 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:17:02,892 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:17:02,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:17:02,893 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:17:02,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:17:02,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:17:02,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:17:02,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:17:02,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:17:02,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:17:02,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:17:02,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:17:02,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:17:02,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:17:02,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:17:02,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:17:02,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:17:02,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:17:02,899 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:17:02,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:17:02,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:17:02,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:17:02,900 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:17:02,901 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_62f9e53d-6825-4c4a-9897-335c08e407fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 [2021-11-03 04:17:03,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:17:03,184 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:17:03,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:17:03,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:17:03,188 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:17:03,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-03 04:17:03,255 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/da3e95156/6aca2b6abd29441dafa20f09548f227f/FLAGfc30db147 [2021-11-03 04:17:04,347 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:17:04,348 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-03 04:17:04,418 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/da3e95156/6aca2b6abd29441dafa20f09548f227f/FLAGfc30db147 [2021-11-03 04:17:04,661 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/da3e95156/6aca2b6abd29441dafa20f09548f227f [2021-11-03 04:17:04,664 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:17:04,666 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:17:04,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:04,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:17:04,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:17:04,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:04" (1/1) ... [2021-11-03 04:17:04,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42df5715 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:04, skipping insertion in model container [2021-11-03 04:17:04,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:04" (1/1) ... [2021-11-03 04:17:04,681 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:17:04,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:17:06,606 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:07,172 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:07,173 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:07,290 WARN L563 CHandler]: More than one settings change for restart is not yet implemented; using only the first one to be reported [2021-11-03 04:17:08,385 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-03 04:17:08,388 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-03 04:17:08,389 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-03 04:17:08,390 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-03 04:17:08,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:08,459 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 04:17:08,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2dbf53b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:08, skipping insertion in model container [2021-11-03 04:17:08,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:08,461 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:17:08,463 INFO L168 Benchmark]: Toolchain (without parser) took 3795.86 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 70.4 MB in the beginning and 85.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 71.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:17:08,464 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:17:08,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3792.98 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 70.4 MB in the beginning and 85.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 71.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:17:08,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 102.8 MB. Free memory is still 79.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 3792.98 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 70.4 MB in the beginning and 85.7 MB in the end (delta: -15.3 MB). Peak memory consumption was 71.0 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 7038]: 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_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/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_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/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 64bit --witnessprinter.graph.data.programhash 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:17:11,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:17:11,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:17:11,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:17:11,234 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:17:11,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:17:11,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:17:11,241 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:17:11,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:17:11,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:17:11,247 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:17:11,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:17:11,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:17:11,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:17:11,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:17:11,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:17:11,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:17:11,259 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:17:11,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:17:11,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:17:11,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:17:11,270 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:17:11,272 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:17:11,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:17:11,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:17:11,279 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:17:11,280 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:17:11,281 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:17:11,282 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:17:11,284 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:17:11,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:17:11,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:17:11,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:17:11,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:17:11,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:17:11,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:17:11,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:17:11,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:17:11,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:17:11,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:17:11,296 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:17:11,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-03 04:17:11,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:17:11,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:17:11,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:17:11,372 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:17:11,372 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:17:11,372 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:17:11,372 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:17:11,373 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:17:11,373 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:17:11,375 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:17:11,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:17:11,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:17:11,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:17:11,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:17:11,377 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:17:11,377 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:17:11,378 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:17:11,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:17:11,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:17:11,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:17:11,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:17:11,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:17:11,379 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:17:11,379 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:17:11,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:17:11,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:17:11,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:17:11,380 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:17:11,381 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:17:11,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:17:11,381 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:17:11,381 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:17:11,382 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_62f9e53d-6825-4c4a-9897-335c08e407fe/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 265e49c3377c52c97dc3fc0a083b7daee63958176975b73f1e1d54651892cb04 [2021-11-03 04:17:11,904 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:17:11,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:17:11,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:17:11,935 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:17:11,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:17:11,937 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-03 04:17:12,006 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/cf796c8b0/f6529a8272434069a7f45926b4e6ab47/FLAGf0fc9f240 [2021-11-03 04:17:13,263 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:17:13,264 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-03 04:17:13,336 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/cf796c8b0/f6529a8272434069a7f45926b4e6ab47/FLAGf0fc9f240 [2021-11-03 04:17:13,461 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/data/cf796c8b0/f6529a8272434069a7f45926b4e6ab47 [2021-11-03 04:17:13,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:17:13,465 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:17:13,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:13,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:17:13,473 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:17:13,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:13" (1/1) ... [2021-11-03 04:17:13,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@976e7ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:13, skipping insertion in model container [2021-11-03 04:17:13,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:17:13" (1/1) ... [2021-11-03 04:17:13,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:17:13,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:17:17,816 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-03 04:17:17,821 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-03 04:17:17,826 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-03 04:17:17,827 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-03 04:17:17,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:17,960 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:17:18,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:17:18,590 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-03 04:17:18,590 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-03 04:17:18,591 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-03 04:17:18,592 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-03 04:17:18,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:18,674 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:17:19,195 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2021-11-03 04:17:19,196 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2021-11-03 04:17:19,197 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2021-11-03 04:17:19,197 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_62f9e53d-6825-4c4a-9897-335c08e407fe/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2021-11-03 04:17:19,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:17:19,578 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:17:19,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19 WrapperNode [2021-11-03 04:17:19,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:17:19,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:17:19,596 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:17:19,596 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:17:19,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:19,785 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:22,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:17:22,514 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:17:22,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:17:22,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:17:22,523 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:22,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:22,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:22,883 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:24,319 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:24,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:24,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:25,253 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:17:25,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:17:25,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:17:25,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:17:25,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (1/1) ... [2021-11-03 04:17:25,275 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:17:25,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:17:25,304 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:17:25,321 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:17:25,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:17:25,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-03 04:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-03 04:17:25,369 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-03 04:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-03 04:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-03 04:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:17:25,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:17:25,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-03 04:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-03 04:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-03 04:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-03 04:17:25,371 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-03 04:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-03 04:17:25,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:17:25,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-03 04:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-03 04:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-03 04:17:25,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-03 04:21:45,021 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0bv32; [2021-11-03 04:21:45,022 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0bv32; [2021-11-03 04:21:45,022 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0bv32; [2021-11-03 04:21:45,022 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0bv32; [2021-11-03 04:21:45,022 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0bv32; [2021-11-03 04:21:45,026 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 04:21:45,027 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0bv32; [2021-11-03 04:21:45,096 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:21:45,097 INFO L299 CfgBuilder]: Removed 11536 assume(true) statements. [2021-11-03 04:21:45,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:21:45 BoogieIcfgContainer [2021-11-03 04:21:45,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:21:45,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:21:45,111 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:21:45,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:21:45,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:17:13" (1/3) ... [2021-11-03 04:21:45,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce4e984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:21:45, skipping insertion in model container [2021-11-03 04:21:45,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:17:19" (2/3) ... [2021-11-03 04:21:45,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ce4e984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:21:45, skipping insertion in model container [2021-11-03 04:21:45,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:21:45" (3/3) ... [2021-11-03 04:21:45,117 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2021-11-03 04:21:45,122 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:21:45,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-03 04:21:45,216 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:21:45,222 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 04:21:45,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-03 04:21:45,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 11292 states, 11264 states have (on average 1.3313210227272727) internal successors, (14996), 11291 states have internal predecessors, (14996), 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 04:21:45,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-03 04:21:45,456 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:45,457 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:21:45,458 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:21:45,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:45,464 INFO L85 PathProgramCache]: Analyzing trace with hash -896382054, now seen corresponding path program 1 times [2021-11-03 04:21:45,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:45,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1739570935] [2021-11-03 04:21:45,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:45,489 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:45,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:45,497 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:45,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:21:50,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:21:50,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 1995 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:21:50,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:21:51,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:21:51,114 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:21:51,517 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 04:21:51,518 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:21:51,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1739570935] [2021-11-03 04:21:51,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1739570935] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:21:51,519 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:21:51,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:21:51,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795619887] [2021-11-03 04:21:51,528 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:21:51,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:21:51,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:21:51,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:21:51,575 INFO L87 Difference]: Start difference. First operand has 11292 states, 11264 states have (on average 1.3313210227272727) internal successors, (14996), 11291 states have internal predecessors, (14996), 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 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:56,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:21:56,471 INFO L93 Difference]: Finished difference Result 44575 states and 59230 transitions. [2021-11-03 04:21:56,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:21:56,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-03 04:21:56,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:21:56,762 INFO L225 Difference]: With dead ends: 44575 [2021-11-03 04:21:56,762 INFO L226 Difference]: Without dead ends: 33053 [2021-11-03 04:21:56,813 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:21:56,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33053 states. [2021-11-03 04:21:58,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33053 to 33037. [2021-11-03 04:21:58,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33037 states, 33009 states have (on average 1.320427762125481) internal successors, (43586), 33036 states have internal predecessors, (43586), 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 04:21:58,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33037 states to 33037 states and 43586 transitions. [2021-11-03 04:21:58,772 INFO L78 Accepts]: Start accepts. Automaton has 33037 states and 43586 transitions. Word has length 45 [2021-11-03 04:21:58,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:21:58,774 INFO L470 AbstractCegarLoop]: Abstraction has 33037 states and 43586 transitions. [2021-11-03 04:21:58,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:21:58,775 INFO L276 IsEmpty]: Start isEmpty. Operand 33037 states and 43586 transitions. [2021-11-03 04:21:58,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-03 04:21:58,787 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:21:58,788 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:21:58,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:21:58,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:21:58,992 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:21:58,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:21:58,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1966733374, now seen corresponding path program 1 times [2021-11-03 04:21:59,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:21:59,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516666630] [2021-11-03 04:21:59,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:21:59,004 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:21:59,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:21:59,005 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:21:59,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:22:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:04,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 2046 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:22:04,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:04,562 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 04:22:04,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:05,216 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 04:22:05,216 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:05,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516666630] [2021-11-03 04:22:05,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516666630] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:05,217 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:05,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:22:05,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714122109] [2021-11-03 04:22:05,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:22:05,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:05,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:22:05,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:22:05,220 INFO L87 Difference]: Start difference. First operand 33037 states and 43586 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 04:22:13,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:13,394 INFO L93 Difference]: Finished difference Result 129659 states and 171208 transitions. [2021-11-03 04:22:13,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:22:13,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-11-03 04:22:13,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:13,934 INFO L225 Difference]: With dead ends: 129659 [2021-11-03 04:22:13,935 INFO L226 Difference]: Without dead ends: 96706 [2021-11-03 04:22:14,022 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:22:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96706 states. [2021-11-03 04:22:18,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96706 to 96324. [2021-11-03 04:22:19,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96324 states, 96296 states have (on average 1.3222459915261278) internal successors, (127327), 96323 states have internal predecessors, (127327), 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 04:22:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96324 states to 96324 states and 127327 transitions. [2021-11-03 04:22:19,478 INFO L78 Accepts]: Start accepts. Automaton has 96324 states and 127327 transitions. Word has length 52 [2021-11-03 04:22:19,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:19,479 INFO L470 AbstractCegarLoop]: Abstraction has 96324 states and 127327 transitions. [2021-11-03 04:22:19,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 04:22:19,479 INFO L276 IsEmpty]: Start isEmpty. Operand 96324 states and 127327 transitions. [2021-11-03 04:22:19,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-11-03 04:22:19,485 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:19,485 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:19,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:22:19,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:19,691 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:22:19,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:19,692 INFO L85 PathProgramCache]: Analyzing trace with hash 262574051, now seen corresponding path program 1 times [2021-11-03 04:22:19,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:19,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1347040281] [2021-11-03 04:22:19,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:19,711 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:19,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:19,727 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:19,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:22:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:24,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 2082 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:22:24,483 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:26,449 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:22:26,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:28,393 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:22:28,394 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:28,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1347040281] [2021-11-03 04:22:28,394 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1347040281] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:28,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:28,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:22:28,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614178506] [2021-11-03 04:22:28,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:22:28,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:28,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:22:28,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:22:28,398 INFO L87 Difference]: Start difference. First operand 96324 states and 127327 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:32,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:32,845 INFO L93 Difference]: Finished difference Result 96324 states and 127327 transitions. [2021-11-03 04:22:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:22:32,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-11-03 04:22:32,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:33,199 INFO L225 Difference]: With dead ends: 96324 [2021-11-03 04:22:33,200 INFO L226 Difference]: Without dead ends: 96320 [2021-11-03 04:22:33,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:22:33,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96320 states. [2021-11-03 04:22:37,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96320 to 96320. [2021-11-03 04:22:37,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96320 states, 96294 states have (on average 1.3222319147610444) internal successors, (127323), 96319 states have internal predecessors, (127323), 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 04:22:37,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96320 states to 96320 states and 127323 transitions. [2021-11-03 04:22:37,598 INFO L78 Accepts]: Start accepts. Automaton has 96320 states and 127323 transitions. Word has length 70 [2021-11-03 04:22:37,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:37,599 INFO L470 AbstractCegarLoop]: Abstraction has 96320 states and 127323 transitions. [2021-11-03 04:22:37,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:22:37,599 INFO L276 IsEmpty]: Start isEmpty. Operand 96320 states and 127323 transitions. [2021-11-03 04:22:37,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-03 04:22:37,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:37,603 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:37,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-03 04:22:37,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:37,819 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:22:37,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:37,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1069266618, now seen corresponding path program 1 times [2021-11-03 04:22:37,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:37,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222421343] [2021-11-03 04:22:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:37,823 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:37,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:37,825 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:37,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:22:42,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:22:42,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 2085 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:22:42,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:22:44,620 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:22:44,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:22:46,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:22:46,403 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:22:46,403 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222421343] [2021-11-03 04:22:46,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222421343] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:22:46,404 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:22:46,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:22:46,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808580512] [2021-11-03 04:22:46,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:22:46,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:22:46,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:22:46,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:22:46,407 INFO L87 Difference]: Start difference. First operand 96320 states and 127323 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 04:22:50,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:22:50,782 INFO L93 Difference]: Finished difference Result 96320 states and 127323 transitions. [2021-11-03 04:22:50,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:22:50,783 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 72 [2021-11-03 04:22:50,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:22:51,187 INFO L225 Difference]: With dead ends: 96320 [2021-11-03 04:22:51,188 INFO L226 Difference]: Without dead ends: 96316 [2021-11-03 04:22:51,236 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:22:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96316 states. [2021-11-03 04:22:55,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96316 to 96316. [2021-11-03 04:22:55,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96316 states, 96292 states have (on average 1.3222178374112077) internal successors, (127319), 96315 states have internal predecessors, (127319), 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 04:22:55,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96316 states to 96316 states and 127319 transitions. [2021-11-03 04:22:55,975 INFO L78 Accepts]: Start accepts. Automaton has 96316 states and 127319 transitions. Word has length 72 [2021-11-03 04:22:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:22:55,976 INFO L470 AbstractCegarLoop]: Abstraction has 96316 states and 127319 transitions. [2021-11-03 04:22:55,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 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 04:22:55,976 INFO L276 IsEmpty]: Start isEmpty. Operand 96316 states and 127319 transitions. [2021-11-03 04:22:55,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-03 04:22:55,982 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:22:55,983 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:22:56,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-03 04:22:56,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:22:56,199 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:22:56,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:22:56,199 INFO L85 PathProgramCache]: Analyzing trace with hash -1067894999, now seen corresponding path program 1 times [2021-11-03 04:22:56,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:22:56,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1291863201] [2021-11-03 04:22:56,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:22:56,202 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:22:56,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:22:56,203 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:22:56,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:23:00,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:00,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 2088 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:23:00,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:02,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:23:02,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:04,522 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:23:04,522 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:04,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1291863201] [2021-11-03 04:23:04,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1291863201] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:04,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:04,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:23:04,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424769602] [2021-11-03 04:23:04,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:23:04,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:04,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:23:04,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:23:04,525 INFO L87 Difference]: Start difference. First operand 96316 states and 127319 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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 04:23:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:10,146 INFO L93 Difference]: Finished difference Result 96316 states and 127319 transitions. [2021-11-03 04:23:10,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:23:10,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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 74 [2021-11-03 04:23:10,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:10,322 INFO L225 Difference]: With dead ends: 96316 [2021-11-03 04:23:10,322 INFO L226 Difference]: Without dead ends: 96312 [2021-11-03 04:23:10,343 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:23:10,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96312 states. [2021-11-03 04:23:14,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96312 to 96312. [2021-11-03 04:23:14,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96312 states, 96290 states have (on average 1.3222037594765812) internal successors, (127315), 96311 states have internal predecessors, (127315), 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 04:23:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96312 states to 96312 states and 127315 transitions. [2021-11-03 04:23:15,114 INFO L78 Accepts]: Start accepts. Automaton has 96312 states and 127315 transitions. Word has length 74 [2021-11-03 04:23:15,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:15,115 INFO L470 AbstractCegarLoop]: Abstraction has 96312 states and 127315 transitions. [2021-11-03 04:23:15,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 4 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 04:23:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand 96312 states and 127315 transitions. [2021-11-03 04:23:15,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-03 04:23:15,119 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:15,119 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:23:15,162 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2021-11-03 04:23:15,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:15,320 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:23:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:15,320 INFO L85 PathProgramCache]: Analyzing trace with hash 250231180, now seen corresponding path program 1 times [2021-11-03 04:23:15,323 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:15,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025207950] [2021-11-03 04:23:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:15,323 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:15,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:15,324 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:15,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:23:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:20,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 2091 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:23:20,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:22,061 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:23:22,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:23:24,092 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:24,092 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025207950] [2021-11-03 04:23:24,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025207950] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:24,092 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:24,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:23:24,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986553281] [2021-11-03 04:23:24,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:23:24,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:24,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:23:24,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:23:24,094 INFO L87 Difference]: Start difference. First operand 96312 states and 127315 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:30,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:30,042 INFO L93 Difference]: Finished difference Result 96312 states and 127315 transitions. [2021-11-03 04:23:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:23:30,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-11-03 04:23:30,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:30,192 INFO L225 Difference]: With dead ends: 96312 [2021-11-03 04:23:30,192 INFO L226 Difference]: Without dead ends: 96308 [2021-11-03 04:23:30,214 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:23:30,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96308 states. [2021-11-03 04:23:35,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96308 to 96308. [2021-11-03 04:23:35,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96308 states, 96288 states have (on average 1.3221896809571285) internal successors, (127311), 96307 states have internal predecessors, (127311), 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 04:23:35,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96308 states to 96308 states and 127311 transitions. [2021-11-03 04:23:35,284 INFO L78 Accepts]: Start accepts. Automaton has 96308 states and 127311 transitions. Word has length 76 [2021-11-03 04:23:35,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:35,284 INFO L470 AbstractCegarLoop]: Abstraction has 96308 states and 127311 transitions. [2021-11-03 04:23:35,284 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:35,285 INFO L276 IsEmpty]: Start isEmpty. Operand 96308 states and 127311 transitions. [2021-11-03 04:23:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2021-11-03 04:23:35,289 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:35,289 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:23:35,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:23:35,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:35,499 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:23:35,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:35,499 INFO L85 PathProgramCache]: Analyzing trace with hash -45862801, now seen corresponding path program 1 times [2021-11-03 04:23:35,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:35,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1037726982] [2021-11-03 04:23:35,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:35,502 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:35,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:35,503 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:35,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:23:40,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:23:40,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 2094 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:23:40,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:23:42,356 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:23:42,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:23:44,375 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:23:44,375 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:23:44,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1037726982] [2021-11-03 04:23:44,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1037726982] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:23:44,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:23:44,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:23:44,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632079732] [2021-11-03 04:23:44,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:23:44,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:23:44,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:23:44,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:23:44,379 INFO L87 Difference]: Start difference. First operand 96308 states and 127311 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:23:50,369 INFO L93 Difference]: Finished difference Result 96308 states and 127311 transitions. [2021-11-03 04:23:50,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:23:50,369 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2021-11-03 04:23:50,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:23:50,536 INFO L225 Difference]: With dead ends: 96308 [2021-11-03 04:23:50,536 INFO L226 Difference]: Without dead ends: 96304 [2021-11-03 04:23:50,557 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:23:50,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96304 states. [2021-11-03 04:23:55,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96304 to 96304. [2021-11-03 04:23:55,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96304 states, 96286 states have (on average 1.3221756018528135) internal successors, (127307), 96303 states have internal predecessors, (127307), 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 04:23:56,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96304 states to 96304 states and 127307 transitions. [2021-11-03 04:23:56,157 INFO L78 Accepts]: Start accepts. Automaton has 96304 states and 127307 transitions. Word has length 78 [2021-11-03 04:23:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:23:56,157 INFO L470 AbstractCegarLoop]: Abstraction has 96304 states and 127307 transitions. [2021-11-03 04:23:56,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:23:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 96304 states and 127307 transitions. [2021-11-03 04:23:56,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-03 04:23:56,163 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:23:56,163 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:23:56,227 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:23:56,378 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:23:56,379 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:23:56,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:23:56,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1124336686, now seen corresponding path program 1 times [2021-11-03 04:23:56,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:23:56,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082925940] [2021-11-03 04:23:56,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:23:56,382 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:23:56,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:23:56,384 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:23:56,387 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:24:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:24:01,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 2097 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:24:01,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:24:03,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:24:03,337 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:24:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:24:05,416 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:24:05,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082925940] [2021-11-03 04:24:05,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082925940] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:24:05,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:24:05,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:24:05,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637711948] [2021-11-03 04:24:05,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:24:05,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:24:05,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:24:05,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:24:05,418 INFO L87 Difference]: Start difference. First operand 96304 states and 127307 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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 04:24:11,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:24:11,955 INFO L93 Difference]: Finished difference Result 96304 states and 127307 transitions. [2021-11-03 04:24:11,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:24:11,959 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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 80 [2021-11-03 04:24:11,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:24:12,120 INFO L225 Difference]: With dead ends: 96304 [2021-11-03 04:24:12,121 INFO L226 Difference]: Without dead ends: 96300 [2021-11-03 04:24:12,141 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:24:12,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96300 states. [2021-11-03 04:24:18,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96300 to 96300. [2021-11-03 04:24:18,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96300 states, 96284 states have (on average 1.3221615221635994) internal successors, (127303), 96299 states have internal predecessors, (127303), 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 04:24:18,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96300 states to 96300 states and 127303 transitions. [2021-11-03 04:24:18,552 INFO L78 Accepts]: Start accepts. Automaton has 96300 states and 127303 transitions. Word has length 80 [2021-11-03 04:24:18,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:24:18,553 INFO L470 AbstractCegarLoop]: Abstraction has 96300 states and 127303 transitions. [2021-11-03 04:24:18,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 states have internal predecessors, (77), 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 04:24:18,553 INFO L276 IsEmpty]: Start isEmpty. Operand 96300 states and 127303 transitions. [2021-11-03 04:24:18,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-03 04:24:18,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:24:18,559 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:24:18,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:24:18,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:24:18,775 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:24:18,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:24:18,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1844345781, now seen corresponding path program 1 times [2021-11-03 04:24:18,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:24:18,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401415403] [2021-11-03 04:24:18,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:18,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:24:18,778 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:24:18,779 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:24:18,782 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:24:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:24:23,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 2100 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:24:23,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:24:25,927 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:24:25,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:24:27,963 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:24:27,963 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:24:27,963 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401415403] [2021-11-03 04:24:27,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1401415403] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:24:27,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:24:27,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:24:27,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086248736] [2021-11-03 04:24:27,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:24:27,965 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:24:27,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:24:27,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:24:27,966 INFO L87 Difference]: Start difference. First operand 96300 states and 127303 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 04:24:36,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:24:36,698 INFO L93 Difference]: Finished difference Result 96300 states and 127303 transitions. [2021-11-03 04:24:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:24:36,699 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 82 [2021-11-03 04:24:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:24:36,861 INFO L225 Difference]: With dead ends: 96300 [2021-11-03 04:24:36,861 INFO L226 Difference]: Without dead ends: 96296 [2021-11-03 04:24:36,880 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:24:36,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96296 states. [2021-11-03 04:24:43,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96296 to 96296. [2021-11-03 04:24:43,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96296 states, 96282 states have (on average 1.3221474418894497) internal successors, (127299), 96295 states have internal predecessors, (127299), 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 04:24:43,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96296 states to 96296 states and 127299 transitions. [2021-11-03 04:24:43,437 INFO L78 Accepts]: Start accepts. Automaton has 96296 states and 127299 transitions. Word has length 82 [2021-11-03 04:24:43,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:24:43,438 INFO L470 AbstractCegarLoop]: Abstraction has 96296 states and 127299 transitions. [2021-11-03 04:24:43,438 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 states have internal predecessors, (79), 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 04:24:43,438 INFO L276 IsEmpty]: Start isEmpty. Operand 96296 states and 127299 transitions. [2021-11-03 04:24:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-03 04:24:43,444 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:24:43,444 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:24:43,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-03 04:24:43,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:24:43,674 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:24:43,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:24:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1405054952, now seen corresponding path program 1 times [2021-11-03 04:24:43,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:24:43,677 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283374558] [2021-11-03 04:24:43,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:24:43,677 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:24:43,677 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:24:43,678 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:24:43,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-03 04:24:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:24:48,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 2103 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:24:48,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:24:50,613 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:24:50,613 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:24:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:24:52,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:24:52,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283374558] [2021-11-03 04:24:52,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283374558] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:24:52,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:24:52,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:24:52,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613877475] [2021-11-03 04:24:52,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:24:52,708 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:24:52,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:24:52,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:24:52,710 INFO L87 Difference]: Start difference. First operand 96296 states and 127299 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 04:25:00,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:25:00,253 INFO L93 Difference]: Finished difference Result 96296 states and 127299 transitions. [2021-11-03 04:25:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:25:00,253 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 84 [2021-11-03 04:25:00,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:25:00,424 INFO L225 Difference]: With dead ends: 96296 [2021-11-03 04:25:00,424 INFO L226 Difference]: Without dead ends: 96292 [2021-11-03 04:25:00,445 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:25:00,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96292 states. [2021-11-03 04:25:07,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96292 to 96292. [2021-11-03 04:25:07,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96292 states, 96280 states have (on average 1.3221333610303283) internal successors, (127295), 96291 states have internal predecessors, (127295), 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 04:25:07,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96292 states to 96292 states and 127295 transitions. [2021-11-03 04:25:07,648 INFO L78 Accepts]: Start accepts. Automaton has 96292 states and 127295 transitions. Word has length 84 [2021-11-03 04:25:07,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:25:07,649 INFO L470 AbstractCegarLoop]: Abstraction has 96292 states and 127295 transitions. [2021-11-03 04:25:07,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 4 states have internal predecessors, (81), 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 04:25:07,649 INFO L276 IsEmpty]: Start isEmpty. Operand 96292 states and 127295 transitions. [2021-11-03 04:25:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-03 04:25:07,654 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:07,654 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:25:07,715 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-03 04:25:07,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:25:07,871 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:25:07,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:07,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1637934853, now seen corresponding path program 1 times [2021-11-03 04:25:07,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:07,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160406806] [2021-11-03 04:25:07,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:07,874 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:07,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:07,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:07,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-03 04:25:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:12,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 2106 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:25:12,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:14,948 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:25:14,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:17,195 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:25:17,195 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:25:17,195 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160406806] [2021-11-03 04:25:17,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1160406806] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:25:17,196 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:25:17,196 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:25:17,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864718377] [2021-11-03 04:25:17,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:25:17,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:25:17,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:25:17,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:25:17,198 INFO L87 Difference]: Start difference. First operand 96292 states and 127295 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 04:25:24,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:25:24,949 INFO L93 Difference]: Finished difference Result 96292 states and 127295 transitions. [2021-11-03 04:25:24,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:25:24,950 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 86 [2021-11-03 04:25:24,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:25:25,103 INFO L225 Difference]: With dead ends: 96292 [2021-11-03 04:25:25,103 INFO L226 Difference]: Without dead ends: 96288 [2021-11-03 04:25:25,123 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:25:25,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96288 states. [2021-11-03 04:25:32,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96288 to 96288. [2021-11-03 04:25:32,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96288 states, 96278 states have (on average 1.3221192795861982) internal successors, (127291), 96287 states have internal predecessors, (127291), 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 04:25:32,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96288 states to 96288 states and 127291 transitions. [2021-11-03 04:25:32,526 INFO L78 Accepts]: Start accepts. Automaton has 96288 states and 127291 transitions. Word has length 86 [2021-11-03 04:25:32,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:25:32,527 INFO L470 AbstractCegarLoop]: Abstraction has 96288 states and 127291 transitions. [2021-11-03 04:25:32,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 04:25:32,527 INFO L276 IsEmpty]: Start isEmpty. Operand 96288 states and 127291 transitions. [2021-11-03 04:25:32,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-03 04:25:32,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:32,532 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:25:32,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-03 04:25:32,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:25:32,733 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:25:32,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:32,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2097220002, now seen corresponding path program 1 times [2021-11-03 04:25:32,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:32,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1830973894] [2021-11-03 04:25:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:32,737 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:32,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:32,738 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:32,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-03 04:25:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:25:37,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 2109 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:25:37,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:25:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:25:40,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:25:42,274 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:25:42,274 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:25:42,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1830973894] [2021-11-03 04:25:42,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1830973894] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:25:42,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:25:42,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:25:42,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471726706] [2021-11-03 04:25:42,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:25:42,275 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:25:42,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:25:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:25:42,276 INFO L87 Difference]: Start difference. First operand 96288 states and 127291 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 04:25:50,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:25:50,584 INFO L93 Difference]: Finished difference Result 96288 states and 127291 transitions. [2021-11-03 04:25:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:25:50,585 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 88 [2021-11-03 04:25:50,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:25:50,756 INFO L225 Difference]: With dead ends: 96288 [2021-11-03 04:25:50,757 INFO L226 Difference]: Without dead ends: 96284 [2021-11-03 04:25:50,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:25:50,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96284 states. [2021-11-03 04:25:58,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96284 to 96284. [2021-11-03 04:25:58,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96284 states, 96276 states have (on average 1.3221051975570235) internal successors, (127287), 96283 states have internal predecessors, (127287), 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 04:25:59,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96284 states to 96284 states and 127287 transitions. [2021-11-03 04:25:59,012 INFO L78 Accepts]: Start accepts. Automaton has 96284 states and 127287 transitions. Word has length 88 [2021-11-03 04:25:59,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:25:59,013 INFO L470 AbstractCegarLoop]: Abstraction has 96284 states and 127287 transitions. [2021-11-03 04:25:59,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 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 04:25:59,013 INFO L276 IsEmpty]: Start isEmpty. Operand 96284 states and 127287 transitions. [2021-11-03 04:25:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-03 04:25:59,018 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:25:59,018 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:25:59,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-03 04:25:59,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:25:59,219 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:25:59,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:25:59,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1088616383, now seen corresponding path program 1 times [2021-11-03 04:25:59,223 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:25:59,223 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103935996] [2021-11-03 04:25:59,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:25:59,223 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:25:59,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:25:59,224 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:25:59,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-03 04:26:04,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:04,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 2112 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:26:04,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:06,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:26:06,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:08,853 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:26:08,854 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:26:08,854 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103935996] [2021-11-03 04:26:08,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103935996] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:26:08,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:26:08,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:26:08,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803949704] [2021-11-03 04:26:08,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:26:08,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:26:08,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:26:08,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:26:08,857 INFO L87 Difference]: Start difference. First operand 96284 states and 127287 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 04:26:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:17,847 INFO L93 Difference]: Finished difference Result 96284 states and 127287 transitions. [2021-11-03 04:26:17,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:26:17,848 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 90 [2021-11-03 04:26:17,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:17,999 INFO L225 Difference]: With dead ends: 96284 [2021-11-03 04:26:17,999 INFO L226 Difference]: Without dead ends: 96280 [2021-11-03 04:26:18,018 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:26:18,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96280 states. [2021-11-03 04:26:26,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96280 to 96280. [2021-11-03 04:26:26,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96280 states, 96274 states have (on average 1.3220911149427674) internal successors, (127283), 96279 states have internal predecessors, (127283), 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 04:26:26,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96280 states to 96280 states and 127283 transitions. [2021-11-03 04:26:26,644 INFO L78 Accepts]: Start accepts. Automaton has 96280 states and 127283 transitions. Word has length 90 [2021-11-03 04:26:26,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:26,645 INFO L470 AbstractCegarLoop]: Abstraction has 96280 states and 127283 transitions. [2021-11-03 04:26:26,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 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 04:26:26,645 INFO L276 IsEmpty]: Start isEmpty. Operand 96280 states and 127283 transitions. [2021-11-03 04:26:26,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-03 04:26:26,652 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:26,652 INFO L513 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:26:26,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-03 04:26:26,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:26,854 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:26:26,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:26,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1811820196, now seen corresponding path program 1 times [2021-11-03 04:26:26,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:26,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2059853598] [2021-11-03 04:26:26,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:26,858 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:26,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:26,859 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:26,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-03 04:26:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:31,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 2115 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:26:31,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:34,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:26:34,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:26:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-03 04:26:36,785 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:26:36,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2059853598] [2021-11-03 04:26:36,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2059853598] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:26:36,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:26:36,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:26:36,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224127437] [2021-11-03 04:26:36,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:26:36,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:26:36,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:26:36,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:26:36,787 INFO L87 Difference]: Start difference. First operand 96280 states and 127283 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 04:26:45,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:26:45,496 INFO L93 Difference]: Finished difference Result 96280 states and 127283 transitions. [2021-11-03 04:26:45,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 04:26:45,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 92 [2021-11-03 04:26:45,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:26:45,667 INFO L225 Difference]: With dead ends: 96280 [2021-11-03 04:26:45,667 INFO L226 Difference]: Without dead ends: 96218 [2021-11-03 04:26:45,690 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:26:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96218 states. [2021-11-03 04:26:52,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96218 to 64201. [2021-11-03 04:26:52,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64201 states, 64197 states have (on average 1.3220243936632552) internal successors, (84870), 64200 states have internal predecessors, (84870), 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 04:26:52,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64201 states to 64201 states and 84870 transitions. [2021-11-03 04:26:52,534 INFO L78 Accepts]: Start accepts. Automaton has 64201 states and 84870 transitions. Word has length 92 [2021-11-03 04:26:52,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:26:52,534 INFO L470 AbstractCegarLoop]: Abstraction has 64201 states and 84870 transitions. [2021-11-03 04:26:52,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 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 04:26:52,535 INFO L276 IsEmpty]: Start isEmpty. Operand 64201 states and 84870 transitions. [2021-11-03 04:26:52,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-11-03 04:26:52,539 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:26:52,539 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:26:52,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (15)] Ended with exit code 0 [2021-11-03 04:26:52,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:26:52,740 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:26:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:26:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1813905272, now seen corresponding path program 1 times [2021-11-03 04:26:52,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:26:52,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1883883232] [2021-11-03 04:26:52,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:26:52,744 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:26:52,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:26:52,745 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:26:52,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-03 04:26:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:26:58,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 2388 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:26:58,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:26:59,940 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 04:26:59,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:27:01,347 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 04:27:01,347 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:27:01,347 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1883883232] [2021-11-03 04:27:01,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1883883232] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:27:01,348 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:27:01,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:27:01,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858920150] [2021-11-03 04:27:01,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:27:01,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:27:01,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:27:01,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:27:01,349 INFO L87 Difference]: Start difference. First operand 64201 states and 84870 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 04:27:13,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:27:13,526 INFO L93 Difference]: Finished difference Result 151005 states and 199644 transitions. [2021-11-03 04:27:13,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:27:13,526 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 115 [2021-11-03 04:27:13,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:27:13,677 INFO L225 Difference]: With dead ends: 151005 [2021-11-03 04:27:13,677 INFO L226 Difference]: Without dead ends: 86888 [2021-11-03 04:27:13,767 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 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 04:27:13,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86888 states. [2021-11-03 04:27:22,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86888 to 85996. [2021-11-03 04:27:22,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85996 states, 85992 states have (on average 1.3232161131268025) internal successors, (113786), 85995 states have internal predecessors, (113786), 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 04:27:22,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85996 states to 85996 states and 113786 transitions. [2021-11-03 04:27:22,848 INFO L78 Accepts]: Start accepts. Automaton has 85996 states and 113786 transitions. Word has length 115 [2021-11-03 04:27:22,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:27:22,848 INFO L470 AbstractCegarLoop]: Abstraction has 85996 states and 113786 transitions. [2021-11-03 04:27:22,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 04:27:22,849 INFO L276 IsEmpty]: Start isEmpty. Operand 85996 states and 113786 transitions. [2021-11-03 04:27:22,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-03 04:27:22,865 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:27:22,865 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:27:22,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-03 04:27:23,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:27:23,066 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:27:23,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:27:23,067 INFO L85 PathProgramCache]: Analyzing trace with hash -36318994, now seen corresponding path program 1 times [2021-11-03 04:27:23,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:27:23,072 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [800969508] [2021-11-03 04:27:23,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:27:23,072 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:27:23,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:27:23,074 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:27:23,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-03 04:27:29,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:27:29,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 2866 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:27:29,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:27:32,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:27:32,066 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:27:34,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:27:34,605 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:27:34,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [800969508] [2021-11-03 04:27:34,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [800969508] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:27:34,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:27:34,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:27:34,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270325829] [2021-11-03 04:27:34,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:27:34,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:27:34,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:27:34,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:27:34,607 INFO L87 Difference]: Start difference. First operand 85996 states and 113786 transitions. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 04:27:48,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:27:48,288 INFO L93 Difference]: Finished difference Result 172361 states and 228031 transitions. [2021-11-03 04:27:48,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:27:48,288 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 205 [2021-11-03 04:27:48,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:27:48,647 INFO L225 Difference]: With dead ends: 172361 [2021-11-03 04:27:48,647 INFO L226 Difference]: Without dead ends: 86449 [2021-11-03 04:27:48,760 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 406 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:27:48,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86449 states. [2021-11-03 04:27:57,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86449 to 86385. [2021-11-03 04:27:58,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86385 states, 86381 states have (on average 1.3216448061495005) internal successors, (114165), 86384 states have internal predecessors, (114165), 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 04:27:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86385 states to 86385 states and 114165 transitions. [2021-11-03 04:27:58,520 INFO L78 Accepts]: Start accepts. Automaton has 86385 states and 114165 transitions. Word has length 205 [2021-11-03 04:27:58,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:27:58,521 INFO L470 AbstractCegarLoop]: Abstraction has 86385 states and 114165 transitions. [2021-11-03 04:27:58,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 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 04:27:58,521 INFO L276 IsEmpty]: Start isEmpty. Operand 86385 states and 114165 transitions. [2021-11-03 04:27:58,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-11-03 04:27:58,537 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:27:58,538 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:27:58,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-03 04:27:58,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:27:58,739 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:27:58,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:27:58,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1829156195, now seen corresponding path program 1 times [2021-11-03 04:27:58,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:27:58,745 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [796607113] [2021-11-03 04:27:58,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:27:58,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:27:58,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:27:58,746 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:27:58,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2021-11-03 04:28:05,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:05,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 2986 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:28:05,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:28:08,621 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:28:08,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:28:11,714 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-03 04:28:11,714 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:28:11,715 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [796607113] [2021-11-03 04:28:11,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [796607113] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:28:11,715 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:28:11,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:28:11,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102247113] [2021-11-03 04:28:11,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:28:11,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:28:11,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:28:11,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:28:11,718 INFO L87 Difference]: Start difference. First operand 86385 states and 114165 transitions. Second operand has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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 04:28:32,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:28:32,465 INFO L93 Difference]: Finished difference Result 237483 states and 313914 transitions. [2021-11-03 04:28:32,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:28:32,466 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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 249 [2021-11-03 04:28:32,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:28:32,793 INFO L225 Difference]: With dead ends: 237483 [2021-11-03 04:28:32,793 INFO L226 Difference]: Without dead ends: 151228 [2021-11-03 04:28:32,942 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 496 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:28:33,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151228 states. [2021-11-03 04:28:49,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151228 to 151164. [2021-11-03 04:28:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151164 states, 151160 states have (on average 1.3213813178089442) internal successors, (199740), 151163 states have internal predecessors, (199740), 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 04:28:50,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151164 states to 151164 states and 199740 transitions. [2021-11-03 04:28:50,541 INFO L78 Accepts]: Start accepts. Automaton has 151164 states and 199740 transitions. Word has length 249 [2021-11-03 04:28:50,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:28:50,541 INFO L470 AbstractCegarLoop]: Abstraction has 151164 states and 199740 transitions. [2021-11-03 04:28:50,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 67.0) internal successors, (268), 4 states have internal predecessors, (268), 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 04:28:50,541 INFO L276 IsEmpty]: Start isEmpty. Operand 151164 states and 199740 transitions. [2021-11-03 04:28:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-03 04:28:50,559 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:28:50,560 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:28:50,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (18)] Ended with exit code 0 [2021-11-03 04:28:50,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:28:50,761 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:28:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:28:50,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1632982373, now seen corresponding path program 1 times [2021-11-03 04:28:50,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:28:50,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519180423] [2021-11-03 04:28:50,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:28:50,766 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:28:50,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:28:50,767 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:28:50,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2021-11-03 04:28:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:28:57,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 3084 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:28:57,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:29:00,488 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 04:29:00,489 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:29:03,469 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 04:29:03,469 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:29:03,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519180423] [2021-11-03 04:29:03,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519180423] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:29:03,469 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:29:03,469 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:29:03,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653122376] [2021-11-03 04:29:03,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:29:03,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:29:03,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:29:03,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:29:03,472 INFO L87 Difference]: Start difference. First operand 151164 states and 199740 transitions. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 04:29:31,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:29:31,036 INFO L93 Difference]: Finished difference Result 345476 states and 456543 transitions. [2021-11-03 04:29:31,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:29:31,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 291 [2021-11-03 04:29:31,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:29:31,486 INFO L225 Difference]: With dead ends: 345476 [2021-11-03 04:29:31,486 INFO L226 Difference]: Without dead ends: 194442 [2021-11-03 04:29:31,709 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:29:31,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194442 states. [2021-11-03 04:29:54,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194442 to 194378. [2021-11-03 04:29:54,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194378 states, 194374 states have (on average 1.3213186948871762) internal successors, (256830), 194377 states have internal predecessors, (256830), 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 04:29:55,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194378 states to 194378 states and 256830 transitions. [2021-11-03 04:29:55,242 INFO L78 Accepts]: Start accepts. Automaton has 194378 states and 256830 transitions. Word has length 291 [2021-11-03 04:29:55,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:29:55,243 INFO L470 AbstractCegarLoop]: Abstraction has 194378 states and 256830 transitions. [2021-11-03 04:29:55,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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 04:29:55,243 INFO L276 IsEmpty]: Start isEmpty. Operand 194378 states and 256830 transitions. [2021-11-03 04:29:55,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-03 04:29:55,264 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:29:55,264 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:29:55,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2021-11-03 04:29:55,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:29:55,465 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:29:55,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:29:55,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1169927284, now seen corresponding path program 1 times [2021-11-03 04:29:55,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:29:55,469 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1930538213] [2021-11-03 04:29:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:29:55,470 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:29:55,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:29:55,470 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:29:55,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2021-11-03 04:30:02,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:30:02,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 3077 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:30:02,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:30:05,359 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 04:30:05,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:30:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-03 04:30:08,515 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:30:08,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1930538213] [2021-11-03 04:30:08,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1930538213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:30:08,515 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:30:08,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:30:08,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946839889] [2021-11-03 04:30:08,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:30:08,516 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:30:08,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:30:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:30:08,517 INFO L87 Difference]: Start difference. First operand 194378 states and 256830 transitions. Second operand has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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 04:30:46,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:30:46,333 INFO L93 Difference]: Finished difference Result 431928 states and 570759 transitions. [2021-11-03 04:30:46,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:30:46,333 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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 291 [2021-11-03 04:30:46,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:30:46,880 INFO L225 Difference]: With dead ends: 431928 [2021-11-03 04:30:46,880 INFO L226 Difference]: Without dead ends: 237680 [2021-11-03 04:30:47,219 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 580 GetRequests, 578 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:30:47,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237680 states. [2021-11-03 04:31:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237680 to 237616. [2021-11-03 04:31:14,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237616 states, 237612 states have (on average 1.321246401696884) internal successors, (313944), 237615 states have internal predecessors, (313944), 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 04:31:15,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237616 states to 237616 states and 313944 transitions. [2021-11-03 04:31:15,663 INFO L78 Accepts]: Start accepts. Automaton has 237616 states and 313944 transitions. Word has length 291 [2021-11-03 04:31:15,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:31:15,663 INFO L470 AbstractCegarLoop]: Abstraction has 237616 states and 313944 transitions. [2021-11-03 04:31:15,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.5) internal successors, (302), 4 states have internal predecessors, (302), 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 04:31:15,664 INFO L276 IsEmpty]: Start isEmpty. Operand 237616 states and 313944 transitions. [2021-11-03 04:31:15,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-11-03 04:31:15,678 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:31:15,679 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:31:15,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2021-11-03 04:31:15,879 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:31:15,881 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-03 04:31:15,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:31:15,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1690578460, now seen corresponding path program 1 times [2021-11-03 04:31:15,893 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:31:15,893 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582046213] [2021-11-03 04:31:15,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:31:15,894 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:31:15,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:31:15,898 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:31:15,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f9e53d-6825-4c4a-9897-335c08e407fe/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2021-11-03 04:31:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:31:22,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 3060 conjuncts, 28 conjunts are in the unsatisfiable core [2021-11-03 04:31:22,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:31:30,838 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 04:31:30,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:31:36,323 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-11-03 04:31:36,323 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:31:36,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582046213] [2021-11-03 04:31:36,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582046213] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:31:36,324 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:31:36,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 10] imperfect sequences [] total 19 [2021-11-03 04:31:36,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251056747] [2021-11-03 04:31:36,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 04:31:36,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:31:36,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 04:31:36,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2021-11-03 04:31:36,326 INFO L87 Difference]: Start difference. First operand 237616 states and 313944 transitions. Second operand has 19 states, 19 states have (on average 17.0) internal successors, (323), 19 states have internal predecessors, (323), 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)