./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78c3727bd3b2d1a7a3f467704564f87e93e64a9d ............................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 78c3727bd3b2d1a7a3f467704564f87e93e64a9d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:30:44,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:30:44,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:30:44,592 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:30:44,592 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:30:44,594 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:30:44,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:30:44,598 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:30:44,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:30:44,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:30:44,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:30:44,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:30:44,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:30:44,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:30:44,616 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:30:44,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:30:44,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:30:44,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:30:44,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:30:44,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:30:44,636 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:30:44,637 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:30:44,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:30:44,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:30:44,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:30:44,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:30:44,649 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:30:44,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:30:44,657 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:30:44,659 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:30:44,659 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:30:44,660 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:30:44,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:30:44,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:30:44,666 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:30:44,666 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:30:44,667 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:30:44,667 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:30:44,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:30:44,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:30:44,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:30:44,671 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:30:44,720 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:30:44,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:30:44,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:30:44,722 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:30:44,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:30:44,722 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:30:44,722 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:30:44,723 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:30:44,729 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:30:44,729 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:30:44,731 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:30:44,731 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:30:44,731 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:30:44,731 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:30:44,732 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:30:44,732 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:30:44,733 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:30:44,733 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:30:44,733 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:30:44,733 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:30:44,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:30:44,734 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:30:44,734 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:30:44,734 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:30:44,734 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:30:44,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:30:44,735 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:30:44,735 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:30:44,735 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:30:44,737 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:30:44,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:44,738 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:30:44,738 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:30:44,738 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:30:44,738 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:30:44,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:30:44,739 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:30:44,739 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:30:44,739 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:30:44,739 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_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78c3727bd3b2d1a7a3f467704564f87e93e64a9d [2021-10-11 02:30:45,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:30:45,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:30:45,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:30:45,079 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:30:45,080 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:30:45,081 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2021-10-11 02:30:45,143 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/49b017709/96cd2b9a5820465e8f7a0fffc6fa3031/FLAG4917d6c39 [2021-10-11 02:30:45,654 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:30:45,654 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2021-10-11 02:30:45,668 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/49b017709/96cd2b9a5820465e8f7a0fffc6fa3031/FLAG4917d6c39 [2021-10-11 02:30:45,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/49b017709/96cd2b9a5820465e8f7a0fffc6fa3031 [2021-10-11 02:30:45,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:30:45,964 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:30:45,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:45,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:30:45,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:30:45,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:45" (1/1) ... [2021-10-11 02:30:45,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a6dc176 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:45, skipping insertion in model container [2021-10-11 02:30:45,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:45" (1/1) ... [2021-10-11 02:30:45,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:30:46,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:46,287 WARN L226 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_06a08390-569f-4187-8e5c-6f9ca2206a69/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7066,7079] [2021-10-11 02:30:46,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:46,360 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) [2021-10-11 02:30:46,361 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6526ed49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:46, skipping insertion in model container [2021-10-11 02:30:46,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:46,362 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-11 02:30:46,364 INFO L168 Benchmark]: Toolchain (without parser) took 399.15 ms. Allocated memory is still 104.9 MB. Free memory was 62.3 MB in the beginning and 76.5 MB in the end (delta: -14.2 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:46,370 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 104.9 MB. Free memory is still 79.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:30:46,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 396.41 ms. Allocated memory is still 104.9 MB. Free memory was 62.1 MB in the beginning and 76.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:30:46,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 104.9 MB. Free memory is still 79.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 396.41 ms. Allocated memory is still 104.9 MB. Free memory was 62.1 MB in the beginning and 76.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 525]: 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... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:30:48,990 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:30:48,995 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:30:49,066 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:30:49,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:30:49,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:30:49,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:30:49,102 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:30:49,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:30:49,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:30:49,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:30:49,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:30:49,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:30:49,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:30:49,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:30:49,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:30:49,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:30:49,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:30:49,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:30:49,150 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:30:49,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:30:49,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:30:49,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:30:49,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:30:49,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:30:49,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:30:49,172 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:30:49,174 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:30:49,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:30:49,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:30:49,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:30:49,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:30:49,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:30:49,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:30:49,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:30:49,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:30:49,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:30:49,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:30:49,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:30:49,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:30:49,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:30:49,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:30:49,237 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:30:49,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:30:49,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:30:49,239 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:30:49,240 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:30:49,240 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:30:49,240 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:30:49,240 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:30:49,240 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:30:49,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:30:49,243 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:30:49,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:30:49,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:30:49,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:30:49,244 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:30:49,244 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:30:49,244 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:30:49,245 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:30:49,245 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:30:49,245 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:30:49,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:30:49,245 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:30:49,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:30:49,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:30:49,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:30:49,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:30:49,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:49,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:30:49,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:30:49,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:30:49,247 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:30:49,248 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:30:49,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:30:49,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:30:49,248 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:30:49,249 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_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78c3727bd3b2d1a7a3f467704564f87e93e64a9d [2021-10-11 02:30:49,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:30:49,691 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:30:49,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:30:49,696 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:30:49,697 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:30:49,698 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2021-10-11 02:30:49,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/7f2eaad58/5c7b5ceff2e744a68cc156fdccac9ad3/FLAGf22b3387d [2021-10-11 02:30:50,410 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:30:50,411 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c [2021-10-11 02:30:50,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/7f2eaad58/5c7b5ceff2e744a68cc156fdccac9ad3/FLAGf22b3387d [2021-10-11 02:30:50,706 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/data/7f2eaad58/5c7b5ceff2e744a68cc156fdccac9ad3 [2021-10-11 02:30:50,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:30:50,711 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:30:50,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:50,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:30:50,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:30:50,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,725 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7bae6065 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:50, skipping insertion in model container [2021-10-11 02:30:50,726 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:30:50" (1/1) ... [2021-10-11 02:30:50,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:30:50,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:51,023 WARN L226 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_06a08390-569f-4187-8e5c-6f9ca2206a69/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7066,7079] [2021-10-11 02:30:51,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:51,176 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-10-11 02:30:51,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:30:51,246 WARN L226 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_06a08390-569f-4187-8e5c-6f9ca2206a69/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7066,7079] [2021-10-11 02:30:51,314 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:51,326 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:30:51,382 WARN L226 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_06a08390-569f-4187-8e5c-6f9ca2206a69/sv-benchmarks/c/product-lines/minepump_spec1_product40.cil.c[7066,7079] [2021-10-11 02:30:51,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:30:51,483 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:30:51,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51 WrapperNode [2021-10-11 02:30:51,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:30:51,486 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:51,486 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:30:51,486 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:30:51,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,525 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,599 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:30:51,600 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:30:51,600 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:30:51,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:30:51,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,677 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... [2021-10-11 02:30:51,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:30:51,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:30:51,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:30:51,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:30:51,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:30:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:30:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:30:51,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:30:51,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:30:54,582 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:30:54,582 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-11 02:30:54,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:54 BoogieIcfgContainer [2021-10-11 02:30:54,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:30:54,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:30:54,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:30:54,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:30:54,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:30:50" (1/3) ... [2021-10-11 02:30:54,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ec8d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:54, skipping insertion in model container [2021-10-11 02:30:54,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:30:51" (2/3) ... [2021-10-11 02:30:54,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ec8d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:30:54, skipping insertion in model container [2021-10-11 02:30:54,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:54" (3/3) ... [2021-10-11 02:30:54,609 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product40.cil.c [2021-10-11 02:30:54,644 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:30:54,648 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2021-10-11 02:30:54,674 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-11 02:30:54,712 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:30:54,712 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:30:54,712 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:30:54,713 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:30:54,713 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:30:54,713 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:30:54,713 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:30:54,714 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:30:54,731 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states. [2021-10-11 02:30:54,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 02:30:54,738 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:54,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:54,739 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:54,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:54,746 INFO L82 PathProgramCache]: Analyzing trace with hash 2074315904, now seen corresponding path program 1 times [2021-10-11 02:30:54,761 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:54,761 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205310612] [2021-10-11 02:30:54,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:55,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:30:55,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:55,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:55,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:55,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205310612] [2021-10-11 02:30:55,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:55,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:30:55,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234061668] [2021-10-11 02:30:55,087 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:30:55,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:55,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:30:55,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:30:55,109 INFO L87 Difference]: Start difference. First operand 113 states. Second operand 2 states. [2021-10-11 02:30:55,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:55,187 INFO L93 Difference]: Finished difference Result 220 states and 335 transitions. [2021-10-11 02:30:55,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:30:55,189 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2021-10-11 02:30:55,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:55,205 INFO L225 Difference]: With dead ends: 220 [2021-10-11 02:30:55,205 INFO L226 Difference]: Without dead ends: 109 [2021-10-11 02:30:55,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:30:55,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-10-11 02:30:55,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-10-11 02:30:55,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2021-10-11 02:30:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 159 transitions. [2021-10-11 02:30:55,285 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 159 transitions. Word has length 16 [2021-10-11 02:30:55,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:55,286 INFO L481 AbstractCegarLoop]: Abstraction has 109 states and 159 transitions. [2021-10-11 02:30:55,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:30:55,286 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 159 transitions. [2021-10-11 02:30:55,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 02:30:55,290 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:55,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:30:55,507 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:30:55,508 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:55,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:55,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1027559007, now seen corresponding path program 1 times [2021-10-11 02:30:55,512 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:55,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254925056] [2021-10-11 02:30:55,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:55,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:55,749 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:30:55,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:55,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:55,812 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:55,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254925056] [2021-10-11 02:30:55,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:55,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:30:55,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241909584] [2021-10-11 02:30:55,815 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:30:55,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:55,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:30:55,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:55,818 INFO L87 Difference]: Start difference. First operand 109 states and 159 transitions. Second operand 3 states. [2021-10-11 02:30:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:55,848 INFO L93 Difference]: Finished difference Result 109 states and 159 transitions. [2021-10-11 02:30:55,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:30:55,850 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2021-10-11 02:30:55,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:55,852 INFO L225 Difference]: With dead ends: 109 [2021-10-11 02:30:55,853 INFO L226 Difference]: Without dead ends: 47 [2021-10-11 02:30:55,854 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:55,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-11 02:30:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-11 02:30:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2021-10-11 02:30:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2021-10-11 02:30:55,871 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 17 [2021-10-11 02:30:55,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:55,875 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2021-10-11 02:30:55,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:30:55,875 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2021-10-11 02:30:55,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:30:55,877 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:55,877 INFO L422 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] [2021-10-11 02:30:56,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:30:56,094 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:56,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:56,095 INFO L82 PathProgramCache]: Analyzing trace with hash 109011716, now seen corresponding path program 1 times [2021-10-11 02:30:56,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:56,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282713459] [2021-10-11 02:30:56,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:56,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:56,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:30:56,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:56,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:56,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:56,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282713459] [2021-10-11 02:30:56,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:56,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:30:56,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640353383] [2021-10-11 02:30:56,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:30:56,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:56,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:30:56,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:56,438 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand 3 states. [2021-10-11 02:30:56,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:56,510 INFO L93 Difference]: Finished difference Result 129 states and 192 transitions. [2021-10-11 02:30:56,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:30:56,511 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2021-10-11 02:30:56,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:56,514 INFO L225 Difference]: With dead ends: 129 [2021-10-11 02:30:56,515 INFO L226 Difference]: Without dead ends: 88 [2021-10-11 02:30:56,516 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:56,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-10-11 02:30:56,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2021-10-11 02:30:56,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-10-11 02:30:56,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 125 transitions. [2021-10-11 02:30:56,541 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 125 transitions. Word has length 22 [2021-10-11 02:30:56,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:56,542 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 125 transitions. [2021-10-11 02:30:56,542 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:30:56,542 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 125 transitions. [2021-10-11 02:30:56,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-11 02:30:56,544 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:56,545 INFO L422 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] [2021-10-11 02:30:56,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:30:56,768 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:56,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:56,768 INFO L82 PathProgramCache]: Analyzing trace with hash 60563277, now seen corresponding path program 1 times [2021-10-11 02:30:56,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:56,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1384846022] [2021-10-11 02:30:56,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:56,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:30:56,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:57,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:57,045 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:57,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1384846022] [2021-10-11 02:30:57,045 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:57,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:30:57,047 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456450423] [2021-10-11 02:30:57,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:30:57,048 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:57,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:30:57,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:57,051 INFO L87 Difference]: Start difference. First operand 84 states and 125 transitions. Second operand 3 states. [2021-10-11 02:30:57,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:57,155 INFO L93 Difference]: Finished difference Result 203 states and 306 transitions. [2021-10-11 02:30:57,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:30:57,155 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2021-10-11 02:30:57,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:57,159 INFO L225 Difference]: With dead ends: 203 [2021-10-11 02:30:57,159 INFO L226 Difference]: Without dead ends: 125 [2021-10-11 02:30:57,162 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:30:57,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2021-10-11 02:30:57,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 123. [2021-10-11 02:30:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2021-10-11 02:30:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 179 transitions. [2021-10-11 02:30:57,184 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 179 transitions. Word has length 24 [2021-10-11 02:30:57,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:57,184 INFO L481 AbstractCegarLoop]: Abstraction has 123 states and 179 transitions. [2021-10-11 02:30:57,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:30:57,185 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 179 transitions. [2021-10-11 02:30:57,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-11 02:30:57,186 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:57,186 INFO L422 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] [2021-10-11 02:30:57,403 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 02:30:57,403 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:57,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:57,404 INFO L82 PathProgramCache]: Analyzing trace with hash -445763815, now seen corresponding path program 1 times [2021-10-11 02:30:57,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:57,405 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1663796186] [2021-10-11 02:30:57,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:57,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:57,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:30:57,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:57,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:57,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:57,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1663796186] [2021-10-11 02:30:57,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:57,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:30:57,698 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917808614] [2021-10-11 02:30:57,699 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:30:57,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:57,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:30:57,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:30:57,700 INFO L87 Difference]: Start difference. First operand 123 states and 179 transitions. Second operand 5 states. [2021-10-11 02:30:57,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:57,891 INFO L93 Difference]: Finished difference Result 619 states and 916 transitions. [2021-10-11 02:30:57,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 02:30:57,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2021-10-11 02:30:57,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:57,896 INFO L225 Difference]: With dead ends: 619 [2021-10-11 02:30:57,897 INFO L226 Difference]: Without dead ends: 502 [2021-10-11 02:30:57,898 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:30:57,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-10-11 02:30:57,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 230. [2021-10-11 02:30:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2021-10-11 02:30:57,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 331 transitions. [2021-10-11 02:30:57,933 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 331 transitions. Word has length 25 [2021-10-11 02:30:57,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:57,934 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 331 transitions. [2021-10-11 02:30:57,934 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:30:57,934 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 331 transitions. [2021-10-11 02:30:57,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-11 02:30:57,936 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:57,936 INFO L422 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] [2021-10-11 02:30:58,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 02:30:58,159 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:58,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:58,160 INFO L82 PathProgramCache]: Analyzing trace with hash -649570909, now seen corresponding path program 1 times [2021-10-11 02:30:58,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:58,161 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336526098] [2021-10-11 02:30:58,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:58,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:30:58,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:58,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:58,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:58,475 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336526098] [2021-10-11 02:30:58,476 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:58,476 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:30:58,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515016995] [2021-10-11 02:30:58,476 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:30:58,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:58,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:30:58,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:30:58,478 INFO L87 Difference]: Start difference. First operand 230 states and 331 transitions. Second operand 5 states. [2021-10-11 02:30:58,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:58,795 INFO L93 Difference]: Finished difference Result 660 states and 954 transitions. [2021-10-11 02:30:58,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-11 02:30:58,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2021-10-11 02:30:58,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:58,801 INFO L225 Difference]: With dead ends: 660 [2021-10-11 02:30:58,801 INFO L226 Difference]: Without dead ends: 658 [2021-10-11 02:30:58,802 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 02:30:58,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 658 states. [2021-10-11 02:30:58,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 658 to 230. [2021-10-11 02:30:58,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2021-10-11 02:30:58,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 329 transitions. [2021-10-11 02:30:58,832 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 329 transitions. Word has length 26 [2021-10-11 02:30:58,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:58,833 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 329 transitions. [2021-10-11 02:30:58,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:30:58,833 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 329 transitions. [2021-10-11 02:30:58,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:30:58,835 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:58,835 INFO L422 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] [2021-10-11 02:30:59,052 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2021-10-11 02:30:59,053 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:59,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:59,053 INFO L82 PathProgramCache]: Analyzing trace with hash 108971892, now seen corresponding path program 1 times [2021-10-11 02:30:59,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:59,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [641180990] [2021-10-11 02:30:59,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:30:59,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjunts are in the unsatisfiable core [2021-10-11 02:30:59,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:30:59,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:30:59,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:30:59,359 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [641180990] [2021-10-11 02:30:59,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:30:59,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:30:59,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892967475] [2021-10-11 02:30:59,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:30:59,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:30:59,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:30:59,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:30:59,362 INFO L87 Difference]: Start difference. First operand 230 states and 329 transitions. Second operand 5 states. [2021-10-11 02:30:59,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:30:59,501 INFO L93 Difference]: Finished difference Result 634 states and 892 transitions. [2021-10-11 02:30:59,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 02:30:59,502 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2021-10-11 02:30:59,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:30:59,505 INFO L225 Difference]: With dead ends: 634 [2021-10-11 02:30:59,505 INFO L226 Difference]: Without dead ends: 410 [2021-10-11 02:30:59,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:30:59,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2021-10-11 02:30:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 254. [2021-10-11 02:30:59,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2021-10-11 02:30:59,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 353 transitions. [2021-10-11 02:30:59,553 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 353 transitions. Word has length 31 [2021-10-11 02:30:59,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:30:59,555 INFO L481 AbstractCegarLoop]: Abstraction has 254 states and 353 transitions. [2021-10-11 02:30:59,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:30:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 353 transitions. [2021-10-11 02:30:59,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:30:59,562 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:30:59,563 INFO L422 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] [2021-10-11 02:30:59,782 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2021-10-11 02:30:59,783 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:30:59,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:30:59,783 INFO L82 PathProgramCache]: Analyzing trace with hash -284055118, now seen corresponding path program 1 times [2021-10-11 02:30:59,784 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:30:59,784 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1020611162] [2021-10-11 02:30:59,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2021-10-11 02:30:59,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:00,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-11 02:31:00,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:00,057 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:00,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1020611162] [2021-10-11 02:31:00,057 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:00,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 02:31:00,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226329959] [2021-10-11 02:31:00,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:31:00,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:00,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:31:00,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:31:00,059 INFO L87 Difference]: Start difference. First operand 254 states and 353 transitions. Second operand 4 states. [2021-10-11 02:31:00,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:00,154 INFO L93 Difference]: Finished difference Result 622 states and 854 transitions. [2021-10-11 02:31:00,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:31:00,154 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2021-10-11 02:31:00,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:00,157 INFO L225 Difference]: With dead ends: 622 [2021-10-11 02:31:00,157 INFO L226 Difference]: Without dead ends: 374 [2021-10-11 02:31:00,158 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:31:00,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-10-11 02:31:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 270. [2021-10-11 02:31:00,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 270 states. [2021-10-11 02:31:00,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 369 transitions. [2021-10-11 02:31:00,199 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 369 transitions. Word has length 31 [2021-10-11 02:31:00,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:00,200 INFO L481 AbstractCegarLoop]: Abstraction has 270 states and 369 transitions. [2021-10-11 02:31:00,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:31:00,200 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 369 transitions. [2021-10-11 02:31:00,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-10-11 02:31:00,201 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:00,201 INFO L422 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] [2021-10-11 02:31:00,415 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2021-10-11 02:31:00,418 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:00,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:00,419 INFO L82 PathProgramCache]: Analyzing trace with hash -25889680, now seen corresponding path program 1 times [2021-10-11 02:31:00,420 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:00,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [999431774] [2021-10-11 02:31:00,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:00,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-11 02:31:00,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:31:00,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:00,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:31:00,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [999431774] [2021-10-11 02:31:00,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:00,677 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:00,677 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39054390] [2021-10-11 02:31:00,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:31:00,678 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:31:00,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:31:00,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:00,679 INFO L87 Difference]: Start difference. First operand 270 states and 369 transitions. Second operand 3 states. [2021-10-11 02:31:00,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:00,763 INFO L93 Difference]: Finished difference Result 638 states and 866 transitions. [2021-10-11 02:31:00,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:31:00,763 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2021-10-11 02:31:00,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:00,766 INFO L225 Difference]: With dead ends: 638 [2021-10-11 02:31:00,767 INFO L226 Difference]: Without dead ends: 374 [2021-10-11 02:31:00,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:31:00,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states. [2021-10-11 02:31:00,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 374. [2021-10-11 02:31:00,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2021-10-11 02:31:00,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 495 transitions. [2021-10-11 02:31:00,818 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 495 transitions. Word has length 31 [2021-10-11 02:31:00,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:00,819 INFO L481 AbstractCegarLoop]: Abstraction has 374 states and 495 transitions. [2021-10-11 02:31:00,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:31:00,819 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 495 transitions. [2021-10-11 02:31:00,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-10-11 02:31:00,820 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:00,820 INFO L422 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] [2021-10-11 02:31:01,034 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2021-10-11 02:31:01,038 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:01,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:01,038 INFO L82 PathProgramCache]: Analyzing trace with hash -2138649550, now seen corresponding path program 1 times [2021-10-11 02:31:01,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:31:01,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [283661999] [2021-10-11 02:31:01,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2021-10-11 02:31:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:02,471 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:03,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:03,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:03,822 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-11 02:31:03,823 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:31:04,045 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2021-10-11 02:31:04,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:04 BoogieIcfgContainer [2021-10-11 02:31:04,208 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:04,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:04,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:04,209 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:04,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:30:54" (3/4) ... [2021-10-11 02:31:04,211 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:31:04,355 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06a08390-569f-4187-8e5c-6f9ca2206a69/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:31:04,355 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:04,357 INFO L168 Benchmark]: Toolchain (without parser) took 13646.06 ms. Allocated memory was 62.9 MB in the beginning and 117.4 MB in the end (delta: 54.5 MB). Free memory was 41.8 MB in the beginning and 60.8 MB in the end (delta: -19.0 MB). Peak memory consumption was 35.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,358 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:04,358 INFO L168 Benchmark]: CACSL2BoogieTranslator took 771.49 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 29.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,359 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.53 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 28.8 MB in the beginning and 60.4 MB in the end (delta: -31.6 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,359 INFO L168 Benchmark]: Boogie Preprocessor took 93.25 ms. Allocated memory is still 79.7 MB. Free memory was 60.4 MB in the beginning and 57.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,360 INFO L168 Benchmark]: RCFGBuilder took 2890.54 ms. Allocated memory is still 79.7 MB. Free memory was 57.4 MB in the beginning and 59.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,360 INFO L168 Benchmark]: TraceAbstraction took 9621.29 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 58.7 MB in the beginning and 74.5 MB in the end (delta: -15.8 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,361 INFO L168 Benchmark]: Witness Printer took 147.25 ms. Allocated memory is still 117.4 MB. Free memory was 74.5 MB in the beginning and 60.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:04,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 62.9 MB. Free memory is still 44.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 771.49 ms. Allocated memory is still 62.9 MB. Free memory was 41.6 MB in the beginning and 29.0 MB in the end (delta: 12.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.53 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 28.8 MB in the beginning and 60.4 MB in the end (delta: -31.6 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 93.25 ms. Allocated memory is still 79.7 MB. Free memory was 60.4 MB in the beginning and 57.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2890.54 ms. Allocated memory is still 79.7 MB. Free memory was 57.4 MB in the beginning and 59.2 MB in the end (delta: -1.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9621.29 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 58.7 MB in the beginning and 74.5 MB in the end (delta: -15.8 MB). Peak memory consumption was 53.5 MB. Max. memory is 16.1 GB. * Witness Printer took 147.25 ms. Allocated memory is still 117.4 MB. Free memory was 74.5 MB in the beginning and 60.8 MB in the end (delta: 13.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 492]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L53] int pumpRunning = 0; [L54] int systemActive = 1; [L354] int cleanupTimeShifts = 4; [L666] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L864] int waterLevel = 1; [L865] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L430] int retValue_acc ; [L431] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L479] int retValue_acc ; [L482] retValue_acc = 1 [L483] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L437] tmp = valid_product() [L439] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L259] int splverifierCounter ; [L260] int tmp ; [L261] int tmp___0 ; [L262] int tmp___1 ; [L263] int tmp___2 ; [L266] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L268] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L270] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L276] tmp = __VERIFIER_nondet_int() [L278] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L882] COND TRUE waterLevel < 2 [L883] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L286] tmp___0 = __VERIFIER_nondet_int() [L288] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L894] COND FALSE !(\read(methaneLevelCritical)) [L897] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L296] tmp___2 = __VERIFIER_nondet_int() [L298] COND TRUE \read(tmp___2) [L250] systemActive = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L61] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L68] COND TRUE \read(systemActive) [L116] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L119] COND FALSE !(\read(pumpRunning)) [L90] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L93] COND TRUE ! pumpRunning [L213] int retValue_acc ; [L214] int tmp ; [L215] int tmp___0 ; [L944] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L947] COND FALSE !(waterLevel < 2) [L951] retValue_acc = 0 [L952] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L219] tmp = isHighWaterSensorDry() [L221] COND FALSE !(\read(tmp)) [L224] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L226] retValue_acc = tmp___0 [L227] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L95] tmp = isHighWaterLevel() [L97] COND TRUE \read(tmp) [L144] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L329] int tmp ; [L330] int tmp___0 ; [L903] int retValue_acc ; [L906] retValue_acc = methaneLevelCritical [L907] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L334] tmp = isMethaneLevelCritical() [L336] COND TRUE \read(tmp) [L168] int retValue_acc ; [L171] retValue_acc = pumpRunning [L172] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L338] tmp___0 = isPumpRunning() [L340] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L492] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 833 SDtfs, 937 SDslu, 1082 SDs, 0 SdLazy, 153 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 230 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 966 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 255 NumberOfCodeBlocks, 255 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 214 ConstructedInterpolants, 0 QuantifiedInterpolants, 9770 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1815 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...