./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8 --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 bf300fda993e6da191f561c0f8e677f22a7de271b61b51439ca8ec3e0ecdedef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:54:56,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:54:56,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:54:56,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:54:56,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:54:56,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:54:56,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:54:56,933 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:54:56,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:54:56,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:54:56,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:54:56,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:54:56,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:54:56,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:54:56,949 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:54:56,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:54:56,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:54:56,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:54:56,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:54:56,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:54:56,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:54:56,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:54:56,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:54:56,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:54:56,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:54:56,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:54:56,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:54:56,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:54:56,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:54:56,992 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:54:56,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:54:56,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:54:56,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:54:56,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:54:56,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:54:56,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:54:57,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:54:57,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:54:57,001 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:54:57,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:54:57,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:54:57,003 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-07 01:54:57,046 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:54:57,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:54:57,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:54:57,051 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:54:57,051 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:54:57,052 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:54:57,052 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 01:54:57,052 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:54:57,052 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:54:57,053 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 01:54:57,059 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 01:54:57,060 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:54:57,060 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 01:54:57,060 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 01:54:57,061 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 01:54:57,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:54:57,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 01:54:57,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:54:57,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:54:57,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:54:57,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:54:57,063 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:54:57,063 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:54:57,063 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:54:57,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:54:57,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:54:57,064 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:54:57,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:54:57,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:54:57,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:54:57,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:54:57,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 01:54:57,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 01:54:57,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:54:57,067 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:54:57,068 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:54:57,068 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_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf300fda993e6da191f561c0f8e677f22a7de271b61b51439ca8ec3e0ecdedef [2021-11-07 01:54:57,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:54:57,390 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:54:57,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:54:57,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:54:57,395 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:54:57,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2021-11-07 01:54:57,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/89a5fab48/041bacbf16b94013803b883fef785ed5/FLAG2c465725c [2021-11-07 01:54:58,326 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:54:58,327 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2021-11-07 01:54:58,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/89a5fab48/041bacbf16b94013803b883fef785ed5/FLAG2c465725c [2021-11-07 01:54:58,477 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/89a5fab48/041bacbf16b94013803b883fef785ed5 [2021-11-07 01:54:58,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:54:58,482 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:54:58,486 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:54:58,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:54:58,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:54:58,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:54:58" (1/1) ... [2021-11-07 01:54:58,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@491bd63e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:58, skipping insertion in model container [2021-11-07 01:54:58,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:54:58" (1/1) ... [2021-11-07 01:54:58,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:54:58,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:54:59,592 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_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i[120339,120352] [2021-11-07 01:54:59,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:54:59,722 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) [2021-11-07 01:54:59,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@50791e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:54:59, skipping insertion in model container [2021-11-07 01:54:59,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:54:59,724 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-07 01:54:59,726 INFO L168 Benchmark]: Toolchain (without parser) took 1242.24 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 80.8 MB in the beginning and 110.0 MB in the end (delta: -29.1 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:54:59,726 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 01:54:59,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1237.53 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 80.6 MB in the beginning and 110.0 MB in the end (delta: -29.4 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. [2021-11-07 01:54:59,729 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory is still 83.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1237.53 ms. Allocated memory was 107.0 MB in the beginning and 142.6 MB in the end (delta: 35.7 MB). Free memory was 80.6 MB in the beginning and 110.0 MB in the end (delta: -29.4 MB). Peak memory consumption was 39.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 2417]: 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_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8 --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 bf300fda993e6da191f561c0f8e677f22a7de271b61b51439ca8ec3e0ecdedef --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 01:55:01,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 01:55:02,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 01:55:02,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 01:55:02,068 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 01:55:02,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 01:55:02,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 01:55:02,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 01:55:02,081 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 01:55:02,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 01:55:02,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 01:55:02,085 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 01:55:02,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 01:55:02,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 01:55:02,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 01:55:02,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 01:55:02,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 01:55:02,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 01:55:02,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 01:55:02,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 01:55:02,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 01:55:02,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 01:55:02,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 01:55:02,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 01:55:02,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 01:55:02,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 01:55:02,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 01:55:02,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 01:55:02,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 01:55:02,109 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 01:55:02,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 01:55:02,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 01:55:02,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 01:55:02,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 01:55:02,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 01:55:02,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 01:55:02,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 01:55:02,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 01:55:02,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 01:55:02,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 01:55:02,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 01:55:02,121 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2021-11-07 01:55:02,160 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 01:55:02,161 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 01:55:02,162 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 01:55:02,162 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 01:55:02,162 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 01:55:02,163 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 01:55:02,163 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 01:55:02,163 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 01:55:02,163 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 01:55:02,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 01:55:02,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 01:55:02,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 01:55:02,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 01:55:02,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 01:55:02,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 01:55:02,166 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 01:55:02,167 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 01:55:02,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 01:55:02,167 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 01:55:02,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 01:55:02,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 01:55:02,168 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 01:55:02,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 01:55:02,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:02,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 01:55:02,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 01:55:02,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 01:55:02,169 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 01:55:02,169 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 01:55:02,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 01:55:02,169 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 01:55:02,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 01:55:02,170 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_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf300fda993e6da191f561c0f8e677f22a7de271b61b51439ca8ec3e0ecdedef [2021-11-07 01:55:02,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 01:55:02,560 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 01:55:02,563 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 01:55:02,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 01:55:02,565 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 01:55:02,566 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2021-11-07 01:55:02,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/863b092fc/8eaa0453f23748dc9f546754d34e9a80/FLAGcba00f295 [2021-11-07 01:55:03,635 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 01:55:03,636 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2021-11-07 01:55:03,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/863b092fc/8eaa0453f23748dc9f546754d34e9a80/FLAGcba00f295 [2021-11-07 01:55:03,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/data/863b092fc/8eaa0453f23748dc9f546754d34e9a80 [2021-11-07 01:55:03,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 01:55:03,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 01:55:03,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:03,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 01:55:03,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 01:55:03,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:03" (1/1) ... [2021-11-07 01:55:03,704 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5da1ac0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:03, skipping insertion in model container [2021-11-07 01:55:03,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:55:03" (1/1) ... [2021-11-07 01:55:03,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 01:55:03,812 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:04,804 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_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i[120339,120352] [2021-11-07 01:55:04,887 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:04,917 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-07 01:55:04,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 01:55:05,254 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_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i[120339,120352] [2021-11-07 01:55:05,277 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:05,292 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 01:55:05,522 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_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i[120339,120352] [2021-11-07 01:55:05,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 01:55:05,603 INFO L208 MainTranslator]: Completed translation [2021-11-07 01:55:05,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05 WrapperNode [2021-11-07 01:55:05,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 01:55:05,606 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 01:55:05,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 01:55:05,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 01:55:05,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:05,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:06,276 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 01:55:06,280 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 01:55:06,280 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 01:55:06,280 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 01:55:06,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:06,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:06,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:06,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:06,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:06,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:06,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:07,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 01:55:07,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 01:55:07,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 01:55:07,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 01:55:07,129 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (1/1) ... [2021-11-07 01:55:07,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 01:55:07,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 01:55:07,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 01:55:07,194 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 01:55:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-07 01:55:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-07 01:55:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 01:55:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 01:55:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-07 01:55:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 01:55:07,218 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-07 01:55:07,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 01:55:07,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 01:55:07,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 01:58:38,994 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 01:58:38,995 INFO L299 CfgBuilder]: Removed 3460 assume(true) statements. [2021-11-07 01:58:39,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:39 BoogieIcfgContainer [2021-11-07 01:58:39,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 01:58:39,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 01:58:39,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 01:58:39,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 01:58:39,006 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:55:03" (1/3) ... [2021-11-07 01:58:39,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4786e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:39, skipping insertion in model container [2021-11-07 01:58:39,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:55:05" (2/3) ... [2021-11-07 01:58:39,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e4786e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:58:39, skipping insertion in model container [2021-11-07 01:58:39,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:58:39" (3/3) ... [2021-11-07 01:58:39,009 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--pcmcia--pcmcia_rsrc.ko-main.cil.out.i [2021-11-07 01:58:39,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 01:58:39,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 52 error locations. [2021-11-07 01:58:39,093 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 01:58:39,113 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 [2021-11-07 01:58:39,113 INFO L340 AbstractCegarLoop]: Starting to check reachability of 52 error locations. [2021-11-07 01:58:39,190 INFO L276 IsEmpty]: Start isEmpty. Operand has 3744 states, 3691 states have (on average 1.4212950419940396) internal successors, (5246), 3743 states have internal predecessors, (5246), 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) [2021-11-07 01:58:39,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 01:58:39,199 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:39,200 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:39,201 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:58:39,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:39,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2024417358, now seen corresponding path program 1 times [2021-11-07 01:58:39,221 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:39,221 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1025676931] [2021-11-07 01:58:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:39,222 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:39,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:39,225 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:39,238 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 01:58:39,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:39,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:58:39,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:40,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:40,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:40,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:40,290 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:40,290 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1025676931] [2021-11-07 01:58:40,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1025676931] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:40,291 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:40,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:58:40,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943274140] [2021-11-07 01:58:40,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:58:40,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:40,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:58:40,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:40,321 INFO L87 Difference]: Start difference. First operand has 3744 states, 3691 states have (on average 1.4212950419940396) internal successors, (5246), 3743 states have internal predecessors, (5246), 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 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:40,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:40,958 INFO L93 Difference]: Finished difference Result 11125 states and 15587 transitions. [2021-11-07 01:58:40,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:58:40,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-07 01:58:40,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:41,028 INFO L225 Difference]: With dead ends: 11125 [2021-11-07 01:58:41,029 INFO L226 Difference]: Without dead ends: 7376 [2021-11-07 01:58:41,044 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:41,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7376 states. [2021-11-07 01:58:41,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7376 to 7275. [2021-11-07 01:58:41,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7275 states, 7223 states have (on average 1.3574691956250866) internal successors, (9805), 7274 states have internal predecessors, (9805), 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) [2021-11-07 01:58:41,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7275 states to 7275 states and 9805 transitions. [2021-11-07 01:58:41,393 INFO L78 Accepts]: Start accepts. Automaton has 7275 states and 9805 transitions. Word has length 15 [2021-11-07 01:58:41,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:41,394 INFO L470 AbstractCegarLoop]: Abstraction has 7275 states and 9805 transitions. [2021-11-07 01:58:41,394 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:41,394 INFO L276 IsEmpty]: Start isEmpty. Operand 7275 states and 9805 transitions. [2021-11-07 01:58:41,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:58:41,403 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:41,403 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:41,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:41,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:41,617 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:58:41,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:41,618 INFO L85 PathProgramCache]: Analyzing trace with hash -201539820, now seen corresponding path program 1 times [2021-11-07 01:58:41,619 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:41,619 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1855475105] [2021-11-07 01:58:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:41,620 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:41,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:41,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:41,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 01:58:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:42,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:58:42,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:42,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:42,494 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:42,495 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1855475105] [2021-11-07 01:58:42,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1855475105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:42,495 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:42,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:58:42,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234381040] [2021-11-07 01:58:42,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 01:58:42,497 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:42,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 01:58:42,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:58:42,498 INFO L87 Difference]: Start difference. First operand 7275 states and 9805 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-07 01:58:45,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:45,487 INFO L93 Difference]: Finished difference Result 29049 states and 39163 transitions. [2021-11-07 01:58:45,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:58:45,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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 17 [2021-11-07 01:58:45,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:45,619 INFO L225 Difference]: With dead ends: 29049 [2021-11-07 01:58:45,619 INFO L226 Difference]: Without dead ends: 21777 [2021-11-07 01:58:45,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 01:58:45,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21777 states. [2021-11-07 01:58:46,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21777 to 21585. [2021-11-07 01:58:46,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21585 states, 21533 states have (on average 1.3587052431152185) internal successors, (29257), 21584 states have internal predecessors, (29257), 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) [2021-11-07 01:58:46,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21585 states to 21585 states and 29257 transitions. [2021-11-07 01:58:46,752 INFO L78 Accepts]: Start accepts. Automaton has 21585 states and 29257 transitions. Word has length 17 [2021-11-07 01:58:46,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:46,753 INFO L470 AbstractCegarLoop]: Abstraction has 21585 states and 29257 transitions. [2021-11-07 01:58:46,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2021-11-07 01:58:46,754 INFO L276 IsEmpty]: Start isEmpty. Operand 21585 states and 29257 transitions. [2021-11-07 01:58:46,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 01:58:46,755 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:46,756 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:58:46,778 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:46,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:46,974 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:58:46,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:46,975 INFO L85 PathProgramCache]: Analyzing trace with hash -291245117, now seen corresponding path program 1 times [2021-11-07 01:58:46,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:46,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [193832105] [2021-11-07 01:58:46,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:46,978 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:46,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:46,980 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:47,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 01:58:47,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:47,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:58:47,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:47,740 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:47,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:47,822 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:47,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [193832105] [2021-11-07 01:58:47,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [193832105] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:47,822 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:47,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:58:47,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525602946] [2021-11-07 01:58:47,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:58:47,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:47,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:58:47,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:47,824 INFO L87 Difference]: Start difference. First operand 21585 states and 29257 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:49,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:49,137 INFO L93 Difference]: Finished difference Result 60747 states and 82413 transitions. [2021-11-07 01:58:49,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:58:49,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-07 01:58:49,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:49,264 INFO L225 Difference]: With dead ends: 60747 [2021-11-07 01:58:49,264 INFO L226 Difference]: Without dead ends: 39165 [2021-11-07 01:58:49,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:49,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39165 states. [2021-11-07 01:58:50,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39165 to 39080. [2021-11-07 01:58:50,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39080 states, 39028 states have (on average 1.3606897611970892) internal successors, (53105), 39079 states have internal predecessors, (53105), 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) [2021-11-07 01:58:50,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39080 states to 39080 states and 53105 transitions. [2021-11-07 01:58:50,808 INFO L78 Accepts]: Start accepts. Automaton has 39080 states and 53105 transitions. Word has length 17 [2021-11-07 01:58:50,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:50,809 INFO L470 AbstractCegarLoop]: Abstraction has 39080 states and 53105 transitions. [2021-11-07 01:58:50,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 39080 states and 53105 transitions. [2021-11-07 01:58:50,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-07 01:58:50,811 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:50,811 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] [2021-11-07 01:58:50,835 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:51,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:51,024 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:58:51,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:51,025 INFO L85 PathProgramCache]: Analyzing trace with hash 878993339, now seen corresponding path program 1 times [2021-11-07 01:58:51,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:51,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2106296483] [2021-11-07 01:58:51,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:51,027 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:51,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:51,031 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:51,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 01:58:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:51,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:58:51,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:51,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:52,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:52,112 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:52,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2106296483] [2021-11-07 01:58:52,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2106296483] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:52,113 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:52,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:58:52,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319973891] [2021-11-07 01:58:52,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:58:52,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:52,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:58:52,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:52,114 INFO L87 Difference]: Start difference. First operand 39080 states and 53105 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:55,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:58:55,428 INFO L93 Difference]: Finished difference Result 39080 states and 53105 transitions. [2021-11-07 01:58:55,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:58:55,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-07 01:58:55,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:58:55,531 INFO L225 Difference]: With dead ends: 39080 [2021-11-07 01:58:55,531 INFO L226 Difference]: Without dead ends: 39078 [2021-11-07 01:58:55,544 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:55,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39078 states. [2021-11-07 01:58:56,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39078 to 39078. [2021-11-07 01:58:56,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39078 states, 39027 states have (on average 1.3606733799677146) internal successors, (53103), 39077 states have internal predecessors, (53103), 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) [2021-11-07 01:58:56,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39078 states to 39078 states and 53103 transitions. [2021-11-07 01:58:56,933 INFO L78 Accepts]: Start accepts. Automaton has 39078 states and 53103 transitions. Word has length 20 [2021-11-07 01:58:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:58:56,934 INFO L470 AbstractCegarLoop]: Abstraction has 39078 states and 53103 transitions. [2021-11-07 01:58:56,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:58:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 39078 states and 53103 transitions. [2021-11-07 01:58:56,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-07 01:58:56,935 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:58:56,935 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] [2021-11-07 01:58:56,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 01:58:57,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:58:57,150 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:58:57,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:58:57,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1479000526, now seen corresponding path program 1 times [2021-11-07 01:58:57,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:58:57,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1512700600] [2021-11-07 01:58:57,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:58:57,153 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:58:57,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:58:57,158 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:58:57,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-07 01:58:57,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:58:57,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:58:57,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:58:57,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:57,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:58:58,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:58:58,097 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:58:58,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1512700600] [2021-11-07 01:58:58,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1512700600] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:58:58,097 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:58:58,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:58:58,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066343579] [2021-11-07 01:58:58,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:58:58,098 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:58:58,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:58:58,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:58:58,099 INFO L87 Difference]: Start difference. First operand 39078 states and 53103 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-07 01:59:01,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:01,173 INFO L93 Difference]: Finished difference Result 39078 states and 53103 transitions. [2021-11-07 01:59:01,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:59:01,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2021-11-07 01:59:01,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:01,276 INFO L225 Difference]: With dead ends: 39078 [2021-11-07 01:59:01,276 INFO L226 Difference]: Without dead ends: 39076 [2021-11-07 01:59:01,285 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:01,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39076 states. [2021-11-07 01:59:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39076 to 39076. [2021-11-07 01:59:02,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39076 states, 39026 states have (on average 1.3606569978988368) internal successors, (53101), 39075 states have internal predecessors, (53101), 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) [2021-11-07 01:59:03,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39076 states to 39076 states and 53101 transitions. [2021-11-07 01:59:03,020 INFO L78 Accepts]: Start accepts. Automaton has 39076 states and 53101 transitions. Word has length 21 [2021-11-07 01:59:03,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:03,022 INFO L470 AbstractCegarLoop]: Abstraction has 39076 states and 53101 transitions. [2021-11-07 01:59:03,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2021-11-07 01:59:03,023 INFO L276 IsEmpty]: Start isEmpty. Operand 39076 states and 53101 transitions. [2021-11-07 01:59:03,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-07 01:59:03,024 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:03,024 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] [2021-11-07 01:59:03,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:03,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:03,225 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:59:03,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:03,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1395613147, now seen corresponding path program 1 times [2021-11-07 01:59:03,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:03,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1856049985] [2021-11-07 01:59:03,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:03,227 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:03,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:03,244 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:03,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-07 01:59:03,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:04,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:04,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:04,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:04,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:04,301 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:04,301 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1856049985] [2021-11-07 01:59:04,301 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1856049985] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:04,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:04,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:59:04,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640817407] [2021-11-07 01:59:04,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:59:04,303 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:04,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:59:04,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:04,304 INFO L87 Difference]: Start difference. First operand 39076 states and 53101 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-07 01:59:07,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:07,345 INFO L93 Difference]: Finished difference Result 39076 states and 53101 transitions. [2021-11-07 01:59:07,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:59:07,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2021-11-07 01:59:07,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:07,416 INFO L225 Difference]: With dead ends: 39076 [2021-11-07 01:59:07,416 INFO L226 Difference]: Without dead ends: 39074 [2021-11-07 01:59:07,426 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:07,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39074 states. [2021-11-07 01:59:08,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39074 to 39074. [2021-11-07 01:59:08,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39074 states, 39025 states have (on average 1.3606406149903907) internal successors, (53099), 39073 states have internal predecessors, (53099), 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) [2021-11-07 01:59:09,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39074 states to 39074 states and 53099 transitions. [2021-11-07 01:59:09,037 INFO L78 Accepts]: Start accepts. Automaton has 39074 states and 53099 transitions. Word has length 22 [2021-11-07 01:59:09,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:09,038 INFO L470 AbstractCegarLoop]: Abstraction has 39074 states and 53099 transitions. [2021-11-07 01:59:09,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2021-11-07 01:59:09,038 INFO L276 IsEmpty]: Start isEmpty. Operand 39074 states and 53099 transitions. [2021-11-07 01:59:09,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-07 01:59:09,039 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:09,039 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] [2021-11-07 01:59:09,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:09,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:09,247 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:59:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:09,248 INFO L85 PathProgramCache]: Analyzing trace with hash -314323784, now seen corresponding path program 1 times [2021-11-07 01:59:09,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:09,248 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [238771406] [2021-11-07 01:59:09,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:09,249 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:09,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:09,249 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:09,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-07 01:59:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:09,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:09,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:09,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:09,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:10,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:10,048 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:10,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [238771406] [2021-11-07 01:59:10,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [238771406] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:10,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:10,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:59:10,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098168712] [2021-11-07 01:59:10,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:59:10,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:10,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:59:10,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:10,049 INFO L87 Difference]: Start difference. First operand 39074 states and 53099 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:13,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:13,549 INFO L93 Difference]: Finished difference Result 74255 states and 101562 transitions. [2021-11-07 01:59:13,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:59:13,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-11-07 01:59:13,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:13,611 INFO L225 Difference]: With dead ends: 74255 [2021-11-07 01:59:13,611 INFO L226 Difference]: Without dead ends: 35179 [2021-11-07 01:59:13,665 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:13,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35179 states. [2021-11-07 01:59:14,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35179 to 23363. [2021-11-07 01:59:14,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23363 states, 23339 states have (on average 1.3729380007712413) internal successors, (32043), 23362 states have internal predecessors, (32043), 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) [2021-11-07 01:59:14,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23363 states to 23363 states and 32043 transitions. [2021-11-07 01:59:14,978 INFO L78 Accepts]: Start accepts. Automaton has 23363 states and 32043 transitions. Word has length 23 [2021-11-07 01:59:14,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:14,978 INFO L470 AbstractCegarLoop]: Abstraction has 23363 states and 32043 transitions. [2021-11-07 01:59:14,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 01:59:14,979 INFO L276 IsEmpty]: Start isEmpty. Operand 23363 states and 32043 transitions. [2021-11-07 01:59:14,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-07 01:59:14,982 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:14,982 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 01:59:14,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:15,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:15,196 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:59:15,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:15,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1201623845, now seen corresponding path program 1 times [2021-11-07 01:59:15,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:15,197 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397098057] [2021-11-07 01:59:15,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:15,198 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:15,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:15,198 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:15,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-07 01:59:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:15,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:15,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:15,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:59:15,913 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:15,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-07 01:59:15,994 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:15,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397098057] [2021-11-07 01:59:15,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1397098057] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:15,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:15,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:59:15,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600016876] [2021-11-07 01:59:15,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:59:15,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:15,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:59:15,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:15,997 INFO L87 Difference]: Start difference. First operand 23363 states and 32043 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-07 01:59:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:18,837 INFO L93 Difference]: Finished difference Result 23363 states and 32043 transitions. [2021-11-07 01:59:18,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:59:18,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 37 [2021-11-07 01:59:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:18,874 INFO L225 Difference]: With dead ends: 23363 [2021-11-07 01:59:18,875 INFO L226 Difference]: Without dead ends: 23347 [2021-11-07 01:59:18,882 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:18,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23347 states. [2021-11-07 01:59:19,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23347 to 23347. [2021-11-07 01:59:19,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23347 states, 23331 states have (on average 1.3716943122883718) internal successors, (32003), 23346 states have internal predecessors, (32003), 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) [2021-11-07 01:59:20,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23347 states to 23347 states and 32003 transitions. [2021-11-07 01:59:20,040 INFO L78 Accepts]: Start accepts. Automaton has 23347 states and 32003 transitions. Word has length 37 [2021-11-07 01:59:20,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:20,040 INFO L470 AbstractCegarLoop]: Abstraction has 23347 states and 32003 transitions. [2021-11-07 01:59:20,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-11-07 01:59:20,041 INFO L276 IsEmpty]: Start isEmpty. Operand 23347 states and 32003 transitions. [2021-11-07 01:59:20,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-07 01:59:20,059 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:20,059 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] [2021-11-07 01:59:20,081 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-07 01:59:20,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:20,272 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:59:20,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:20,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1489337275, now seen corresponding path program 1 times [2021-11-07 01:59:20,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:20,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1732615271] [2021-11-07 01:59:20,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:20,274 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:20,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:20,275 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:20,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-07 01:59:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:21,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 713 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:21,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:21,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:21,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:21,751 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:21,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1732615271] [2021-11-07 01:59:21,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1732615271] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:21,752 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:21,752 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:59:21,752 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643006440] [2021-11-07 01:59:21,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:59:21,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:21,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:59:21,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:21,754 INFO L87 Difference]: Start difference. First operand 23347 states and 32003 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-07 01:59:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:23,301 INFO L93 Difference]: Finished difference Result 60267 states and 82651 transitions. [2021-11-07 01:59:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:59:23,301 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 66 [2021-11-07 01:59:23,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:23,360 INFO L225 Difference]: With dead ends: 60267 [2021-11-07 01:59:23,360 INFO L226 Difference]: Without dead ends: 36923 [2021-11-07 01:59:23,385 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:23,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36923 states. [2021-11-07 01:59:25,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36923 to 36899. [2021-11-07 01:59:25,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36899 states, 36883 states have (on average 1.3726378006127484) internal successors, (50627), 36898 states have internal predecessors, (50627), 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) [2021-11-07 01:59:25,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36899 states to 36899 states and 50627 transitions. [2021-11-07 01:59:25,217 INFO L78 Accepts]: Start accepts. Automaton has 36899 states and 50627 transitions. Word has length 66 [2021-11-07 01:59:25,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:25,217 INFO L470 AbstractCegarLoop]: Abstraction has 36899 states and 50627 transitions. [2021-11-07 01:59:25,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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) [2021-11-07 01:59:25,217 INFO L276 IsEmpty]: Start isEmpty. Operand 36899 states and 50627 transitions. [2021-11-07 01:59:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-07 01:59:25,240 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:25,240 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] [2021-11-07 01:59:25,268 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:25,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:25,456 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:59:25,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:25,457 INFO L85 PathProgramCache]: Analyzing trace with hash 1791761345, now seen corresponding path program 1 times [2021-11-07 01:59:25,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:25,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1490036046] [2021-11-07 01:59:25,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:25,458 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:25,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:25,459 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:25,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-07 01:59:26,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:26,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-07 01:59:26,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:26,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:26,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 01:59:26,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:26,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1490036046] [2021-11-07 01:59:26,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1490036046] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:26,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:26,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-07 01:59:26,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269501193] [2021-11-07 01:59:26,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-07 01:59:26,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-07 01:59:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:26,989 INFO L87 Difference]: Start difference. First operand 36899 states and 50627 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-07 01:59:29,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:29,179 INFO L93 Difference]: Finished difference Result 91179 states and 125187 transitions. [2021-11-07 01:59:29,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-07 01:59:29,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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 68 [2021-11-07 01:59:29,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:29,262 INFO L225 Difference]: With dead ends: 91179 [2021-11-07 01:59:29,262 INFO L226 Difference]: Without dead ends: 54283 [2021-11-07 01:59:29,292 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-07 01:59:29,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54283 states. [2021-11-07 01:59:31,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54283 to 54259. [2021-11-07 01:59:31,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54259 states, 54243 states have (on average 1.3740206109544089) internal successors, (74531), 54258 states have internal predecessors, (74531), 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) [2021-11-07 01:59:31,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54259 states to 54259 states and 74531 transitions. [2021-11-07 01:59:31,704 INFO L78 Accepts]: Start accepts. Automaton has 54259 states and 74531 transitions. Word has length 68 [2021-11-07 01:59:31,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:31,704 INFO L470 AbstractCegarLoop]: Abstraction has 54259 states and 74531 transitions. [2021-11-07 01:59:31,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2021-11-07 01:59:31,705 INFO L276 IsEmpty]: Start isEmpty. Operand 54259 states and 74531 transitions. [2021-11-07 01:59:31,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 01:59:31,743 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:31,744 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:59:31,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:31,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:31,949 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:59:31,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:31,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1766876155, now seen corresponding path program 1 times [2021-11-07 01:59:31,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:31,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [782395717] [2021-11-07 01:59:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:31,951 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:31,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:31,951 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:31,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-07 01:59:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:32,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-07 01:59:32,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:33,263 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:59:33,263 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:33,831 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:59:33,831 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:33,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [782395717] [2021-11-07 01:59:33,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [782395717] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:33,831 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:33,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-07 01:59:33,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158769379] [2021-11-07 01:59:33,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-07 01:59:33,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:33,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-07 01:59:33,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-07 01:59:33,833 INFO L87 Difference]: Start difference. First operand 54259 states and 74531 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2021-11-07 01:59:36,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 01:59:36,148 INFO L93 Difference]: Finished difference Result 108515 states and 149059 transitions. [2021-11-07 01:59:36,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 01:59:36,148 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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 [2021-11-07 01:59:36,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 01:59:36,219 INFO L225 Difference]: With dead ends: 108515 [2021-11-07 01:59:36,219 INFO L226 Difference]: Without dead ends: 54259 [2021-11-07 01:59:36,253 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-07 01:59:36,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54259 states. [2021-11-07 01:59:38,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54259 to 54259. [2021-11-07 01:59:38,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54259 states, 54243 states have (on average 1.373430673082241) internal successors, (74499), 54258 states have internal predecessors, (74499), 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) [2021-11-07 01:59:38,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54259 states to 54259 states and 74499 transitions. [2021-11-07 01:59:38,978 INFO L78 Accepts]: Start accepts. Automaton has 54259 states and 74499 transitions. Word has length 82 [2021-11-07 01:59:38,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 01:59:38,979 INFO L470 AbstractCegarLoop]: Abstraction has 54259 states and 74499 transitions. [2021-11-07 01:59:38,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 4 states have internal predecessors, (100), 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) [2021-11-07 01:59:38,979 INFO L276 IsEmpty]: Start isEmpty. Operand 54259 states and 74499 transitions. [2021-11-07 01:59:39,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-07 01:59:39,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 01:59:39,011 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-07 01:59:39,030 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-07 01:59:39,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 01:59:39,212 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 49 more)] === [2021-11-07 01:59:39,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 01:59:39,212 INFO L85 PathProgramCache]: Analyzing trace with hash -989751111, now seen corresponding path program 1 times [2021-11-07 01:59:39,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 01:59:39,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641313590] [2021-11-07 01:59:39,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 01:59:39,214 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 01:59:39,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 01:59:39,215 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 01:59:39,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc9a6887-88a2-454b-8226-0bbebdd7dcb6/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-07 01:59:40,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 01:59:40,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-07 01:59:40,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 01:59:40,752 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:59:40,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 01:59:41,243 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-07 01:59:41,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-07 01:59:41,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641313590] [2021-11-07 01:59:41,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [641313590] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 01:59:41,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 01:59:41,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 01:59:41,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172058433] [2021-11-07 01:59:41,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 01:59:41,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-07 01:59:41,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 01:59:41,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-07 01:59:41,245 INFO L87 Difference]: Start difference. First operand 54259 states and 74499 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 12 states have internal predecessors, (82), 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)